WO2012114836A1 - Émetteur, programme de commande de la tension et support d'enregistrement sur lequel est enregistré un programme de commande de la tension - Google Patents

Émetteur, programme de commande de la tension et support d'enregistrement sur lequel est enregistré un programme de commande de la tension Download PDF

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Publication number
WO2012114836A1
WO2012114836A1 PCT/JP2012/052145 JP2012052145W WO2012114836A1 WO 2012114836 A1 WO2012114836 A1 WO 2012114836A1 JP 2012052145 W JP2012052145 W JP 2012052145W WO 2012114836 A1 WO2012114836 A1 WO 2012114836A1
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Prior art keywords
power
power supply
supply voltage
bias voltage
value
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PCT/JP2012/052145
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English (en)
Japanese (ja)
Inventor
英太郎 明石
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Sharp Corp
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Sharp Corp
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0244—Stepped control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/468—Indexing scheme relating to amplifiers the temperature being sensed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0416—Circuits with power amplifiers having gain or transmission power control

Definitions

  • the present invention relates to a transmitter capable of reducing current consumption.
  • the power amplifier In a power amplifier, distortion characteristics are improved when a large amount of current is supplied by increasing a power supply voltage or a bias voltage. For this reason, the power amplifier's power supply voltage and bias voltage have been determined so that the transmitter's distortion characteristics satisfy the standard under the temperature conditions where the distortion characteristics of the power amplifier are most deteriorated within the temperature range to be used. . Therefore, the power amplifier has a sufficient distortion characteristic under a temperature condition where the distortion characteristic is relatively good, and consumes more current than necessary. For this reason, the current consumption of the transmitter equipped with the power amplifier must be increased.
  • Patent Document 1 discloses a method of correcting the power supply voltage of a power amplifier by adding a temperature correction value to the power supply voltage control signal corresponding to the ambient temperature of the power amplifier detected by a temperature sensor. Yes.
  • the power supply voltage of the power amplifier is uniformly corrected by the temperature regardless of the transmission power.
  • the amount of change in distortion characteristics of the power amplifier due to temperature differs depending on transmission power, and the amount of change in distortion characteristics relative to the amount of change in power supply voltage also varies depending on transmission power.
  • the correction value of the power supply voltage is determined so as to satisfy the distortion characteristics standard even with the transmission power whose distortion characteristics are most deteriorated when the transmission power is changed. There is a need. As a result, a distortion characteristic margin more than necessary may be generated depending on transmission power, and in this case, there is a room for reducing current consumption.
  • the present invention has been made in view of the above problems, and its object is to correct the power consumption voltage of the transmitter by correcting the power supply voltage and bias voltage of the power amplifier not only according to the temperature but also according to the transmission power.
  • the purpose is to reduce more.
  • a first transmitter includes: an AGC amplifier that controls transmission power of a transmission signal to a designated transmission power that is designated; and a power amplifier that amplifies the transmission signal output from the AGC amplifier.
  • temperature detecting means for detecting the ambient temperature of the power amplifier, power supply voltage varying means for changing the power supply voltage applied to the power amplifier based on a power supply voltage control signal, and a plurality of preset transmission power
  • a power supply voltage basic value table for setting a basic value of the power supply voltage control signal corresponding to different power values, and the power supply voltage control signal corresponding to a plurality of different temperature values and power values preset for the ambient temperature
  • a storage means for storing a power supply voltage correction value table for setting a correction value of the power supply, and referring to the basic value of the power supply voltage basic value table Determining a corresponding basic value of the power supply voltage control signal corresponding to the designated transmission power, referring to the correction value of the power supply voltage correction value table, and corresponding to the detected temperature of the temperature detecting means
  • a second transmitter includes a transmission including an AGC amplifier that controls transmission power of a transmission signal to a designated transmission power that is designated, and a power amplifier that amplifies the transmission signal output from the AGC amplifier.
  • a temperature detecting means for detecting an ambient temperature of the power amplifier, a bias voltage variable means for changing a bias voltage applied to the power amplifier based on a bias voltage control signal, and a plurality of preset transmission powers.
  • Bias voltage basic value table for setting a basic value of the bias voltage control signal corresponding to different power values, and the bias voltage control signal corresponding to a plurality of different temperature values and power values preset for the ambient temperature
  • Storage means for storing a bias voltage correction value table for setting the correction value of the bias voltage, and the bias voltage basic A corresponding basic value of the bias voltage control signal corresponding to the designated transmission power is determined with reference to the basic value of the table, and a detected temperature of the temperature detecting means with reference to the correction value of the bias voltage correction value table
  • a bias voltage control means for determining the corresponding correction value of the bias voltage control signal corresponding to the designated transmission power, and generating the bias voltage control signal by adding the corresponding basic value and the corresponding correction value. It is characterized by having.
  • a third transmitter includes: an AGC amplifier that controls transmission power of a transmission signal to a designated transmission power that is designated; and a power amplifier that amplifies the transmission signal output from the AGC amplifier.
  • the temperature detecting means, the power supply voltage varying means, the bias voltage varying means, the power supply voltage control means, and the bias voltage control means are provided.
  • the power supply voltage basic value table and the power supply voltage correction value table stored in the storage means in the first transmitter, and the bias voltage basic stored in the storage means in the second transmitter. Storage means for storing the value table and the bias voltage correction value table is provided.
  • the transmission signal output from the AGC amplifier is amplified by the power amplifier.
  • the power supply voltage control means controls the power supply voltage of the power amplifier based on the detected temperature detected by the temperature detection means (first and third transmitters).
  • the bias voltage control means controls the bias voltage of the power amplifier based on the detected temperature (second and third transmitters).
  • the power supply voltage control means refers to the basic value of the power supply voltage basic value table stored in the storage means and corresponds to the power supply voltage control signal corresponding to the designated transmission power.
  • the value is determined.
  • the basic value corresponding to the power value closest to the designated transmission power is read and output as the corresponding basic value.
  • the two power values closest to the designated transmission power and the two basic values corresponding thereto are read out, and the correspondence basics of the designated transmission power are obtained by linear interpolation using these values. A value is calculated.
  • the power supply voltage control means refers to the correction value in the power supply voltage correction value table stored in the storage means, and the corresponding correction value of the power supply voltage control signal corresponding to the detected temperature of the temperature detection means and the designated transmission power Is determined.
  • a correction value corresponding to the temperature value closest to the detected temperature and corresponding to the power value closest to the designated transmission power is read and output as a corresponding correction value.
  • calculation by linear interpolation may be used. In this case, two temperature values closest to the detected temperature are read out, and two correction values corresponding thereto are read out for the two power values closest to the designated transmission power, and linear interpolation using these values is performed. A correction value corresponding to the detected temperature is calculated for each power value. Next, the above two power values are read out, and a corresponding correction value corresponding to the designated transmission power is calculated by linear interpolation using these power values and the two calculated correction values.
  • the power supply voltage control means adds the corresponding basic value and the corresponding correction value to generate a power supply voltage control signal. Then, the power supply voltage is adjusted by changing based on the power supply voltage control signal by the power supply voltage varying means. Thereby, the power supply voltage is set to a voltage according to the ambient temperature (detected temperature) of the power amplifier and the designated transmission power. As a result, a power supply voltage corresponding to the ambient temperature and the designated transmission power is applied to the power amplifier.
  • the bias voltage control means refers to the basic value of the bias voltage basic value table stored in the storage means, and the correspondence basic of the bias voltage control signal corresponding to the designated transmission power The value is determined. At this time, the corresponding basic value is determined in the same manner as the corresponding basic value of the power supply voltage control signal is determined by the power supply voltage control means.
  • the bias voltage control means refers to the correction value in the bias voltage correction value table stored in the storage means, and the corresponding correction value of the bias voltage control signal corresponding to the detected temperature of the temperature detection means and the designated transmission power Is determined.
  • the corresponding correction value of the bias voltage control signal is determined in the same manner as the corresponding correction value of the bias voltage control signal is determined by the bias voltage control means.
  • the bias voltage control means adds the corresponding basic value and the corresponding correction value to generate a bias voltage control signal.
  • the bias voltage is adjusted by changing the bias voltage based on the bias voltage control signal by the bias voltage varying means.
  • the bias voltage is set to a voltage corresponding to the ambient temperature (detected temperature) of the power amplifier and the designated transmission power.
  • a bias voltage corresponding to the ambient temperature and the designated transmission power is applied to the power amplifier.
  • the distortion noise is affected by the relationship between the power supply voltage and the transmission output. Therefore, when the transmission power is lowered with the power supply voltage kept constant, the basic noise is almost constant while the distortion noise is Go down. In other words, the distortion noise decreases as the difference between the power supply voltage and the peak voltage of the transmission signal increases. That is, if the transmission power is lowered while maintaining the state of good distortion characteristics in the relationship between the power supply voltage and the transmission power, the distortion noise is reduced to a level that is buried in the basic noise and cannot be understood. It will decrease or disappear.
  • the power supply voltage correction value table sets the correction value corresponding to each power value equal to or lower than the predetermined power value to the same value.
  • the bias voltage correction value table sets the correction value corresponding to each power value equal to or lower than the predetermined power value to the same value.
  • the power supply voltage correction value table sets the correction value corresponding to each power value equal to or lower than the predetermined power value to the same value, and the bias voltage correction value table stores the predetermined power value. It is preferable to set the correction value corresponding to each power value below the power value to the same value.
  • the effect of voltage control is reduced or eliminated. Therefore, with the above configuration, in each of the voltage correction value tables, the correction value corresponding to each power value equal to or less than a predetermined power value is set to the same value. Thereby, in the range of the power value where the correction value is set to the same value, the correction control of the power supply voltage or the bias voltage is performed with the same value (constant value) regardless of the transmission power. Therefore, since only the necessary minimum correction is performed, it is possible to reduce the power consumed by the correction control and to reduce the control processing load.
  • the voltage control program of the present invention is a program for causing a computer to function as the power supply voltage control means in the first transmitter.
  • Another voltage control program of the present invention is a program for causing a computer to function as the bias voltage control means in the second transmitter.
  • Still another voltage control program of the present invention is a program for causing a computer to function as the power supply voltage control means and the bias voltage control means in the third transmitter.
  • the power supply voltage and bias voltage of the power amplifier can be controlled in the transmitter.
  • Each of the voltage control programs can be recorded on a computer-readable recording medium.
  • the present invention is configured as described above, so that the temperature correction value of the power supply voltage and / or bias voltage of the power amplifier can be appropriately set according to the designated transmission power. Therefore, optimum temperature correction can be realized at any designated transmission power within the transmission power variable range. Therefore, it is possible to reduce the current consumption that can be reduced depending on the transmission power in the past.
  • FIG. 1 It is a block diagram which shows the structure of the principal part of the transmitting apparatus which concerns on Embodiment 1 of this invention.
  • A is a figure which shows the power supply voltage temperature correction value table memorize
  • (b) is a figure which shows the power supply voltage setting value table memorize
  • (b) is a graph of the power supply voltage setting value table of (a).
  • FIG. 1 is a figure which shows the power supply voltage temperature correction value table memorize
  • (b) is a figure which shows the power supply voltage setting value table memorize
  • FIG. 1 shows a configuration of the transmitter 1 according to the present embodiment.
  • the transmitter 1 includes an RFIC 2, a power amplifier 3, a DC / DC converter 4, a battery 5, a temperature sensor 6, a storage unit 7, and a control unit 8. I have.
  • RFIC2 is a modulation circuit for transmission that converts a baseband signal Sbb output from a baseband unit (not shown) into a transmission signal St1 having a transmission frequency, and is provided as a dedicated IC.
  • the RFIC 2 also includes an AGC (Automatic Gain Control) amplifier 20 that adjusts transmission power.
  • AGC Automatic Gain Control
  • the AGC amplifier 20 adjusts the power of the transmission signal St1 to be output based on the transmission power control signal Spw (gain control signal) from the control unit 7. Specifically, the AGC amplifier 20 adjusts the power of the transmission signal St1 by changing the gain according to the value of the transmission power control signal Spw.
  • the transmission power is largely adjusted by increasing the gain as the value of the transmission power control signal Spw increases.
  • the transmission power is adjusted to be small by decreasing the gain when the value of the transmission power control signal Spw is small.
  • the power amplifier 3 is an amplifier that amplifies the transmission signal St1 output from the RFIC 2 and outputs the amplified signal to a not-shown antenna as the transmission signal St2. Further, the power supply voltage Vp of the power amplifier 3 is variable. This power supply voltage Vp is given by the DC / DC converter 4.
  • the DC / DC converter 4 (power supply voltage varying means) is a voltage conversion circuit that converts the battery voltage Vbat supplied from the battery 5 into a predetermined output voltage.
  • the DC / DC converter 4 is a variable output power supply, and adjusts the value of the output voltage, that is, the power supply voltage Vp according to the power supply voltage control signal Sp given from the control unit 8.
  • the battery 5 is a power source of the transmitter 1 and outputs a battery voltage Vbat in order to supply power to each unit including the DC / DC converter 4.
  • the temperature sensor 6 (temperature detection means) is a sensor that detects the ambient temperature of the power amplifier 3, and outputs the detected temperature Td as the ambient temperature. For this reason, the temperature sensor 6 is disposed in the vicinity of the power amplifier 3.
  • the storage unit 7 (storage means) is provided for storing the power supply voltage temperature correction value table TBL1 and the power supply voltage setting value table TBL2, and is configured by a memory, for example.
  • FIG. 2A shows the configuration of the power supply voltage temperature correction value table TBL1
  • FIG. 2B shows the configuration of the power supply voltage set value table TBL2.
  • the signs of ambient temperature, transmission power, power supply voltage temperature correction value, and power supply voltage set value are T, P, C, and VP, respectively.
  • the power supply voltage temperature correction value table TBL1 (power supply voltage correction value table) includes the power supply voltage of the power amplifier 3 at the ambient temperature T and the transmission power P at which a plurality of different values are set.
  • the power supply voltage temperature correction values C for correcting Vp are individually associated with each other. Specifically, the ambient temperature T, transmission power P, and power supply voltage temperature correction value C are set in the power supply voltage temperature correction value table TBL1 as follows.
  • the ambient temperatures T ⁇ 1 , T ⁇ 2 ,..., T ⁇ n , T 1 , T 2 ,..., T m are set at appropriate intervals.
  • n pieces of ambient temperature T -1, T -2, ..., T -n is the cold-side value than the reference temperature T
  • m pieces of the ambient temperature T 1, T 2, ..., T m is the reference temperature T
  • the value is higher than 0 .
  • the reference temperature T 0 is a temperature that serves as a reference for the detection temperature Td of the temperature sensor 6, and is set in advance to a predetermined value.
  • Supply voltage setting value table TBL2 power supply voltage basic value table
  • the transmission power P 0, P 1 when the detected temperature Td is equal to the reference temperature T 0 (Td T 0) , ..., P k and a power supply voltage
  • the set values Vp 0 , Vp 1 ,..., Vp k are associated with each other.
  • 3A shows a specific configuration of the power supply voltage set value table TBL2
  • FIG. 3B shows the power supply voltage set value table TBL2 in a graph
  • 4A shows a specific configuration of the power supply voltage temperature correction value table TBL1
  • FIG. 4B shows the power supply voltage temperature correction value table TBL1 in a graph.
  • the power supply voltage set value table TBL2 is created.
  • Supply voltage set value Vp 0, Vp 1, ..., Vp k by operating the power amplifier 3 to be used is determined experimentally.
  • the transmission power P 0, P 1, ..., the power supply voltage set value Vp 0 corresponding to P 10, Vp 1, ..., Vp k is set.
  • a power supply voltage set value Vp a, ..., Vp k is set to the same value.
  • the power supply voltage set value Vp 10 ⁇ Vp 5 becomes a constant value (1.00).
  • the power supply voltage setting values Vp 4 to Vp 0 rise so as to draw a curve.
  • the power supply voltage temperature correction value C when the ambient temperature T changes is determined.
  • the power supply voltage temperature correction value table TBL1 is created.
  • the power supply voltage temperature correction values C h0 , C h1 ,..., C hk are obtained experimentally by operating the power amplifier 3 that is actually used.
  • ambient temperature T -4, T -3, ..., T -1, T 1, ..., T 3, T 4 and the transmission power P 0, P 1, ..., supply voltage temperature correction value C corresponding to the P 10 is set.
  • the transmission power P is less than the prescribed transmission power P a power supply voltage temperature correction value C is set to the same value.
  • a power supply voltage temperature correction value C is set to the same value.
  • the ambient temperature T ⁇ 4 , T ⁇ is between the transmission powers P 10 to P 5. 3, ..., T -1, T 1, ..., a constant value T 3, T 4.
  • the power supply voltage temperature correction value C changes so as to draw a curve between the transmission powers P 5 and P 0 .
  • the power supply voltage temperature correction value C changes so as to decrease at ambient temperatures T -4 to T -1
  • the power supply voltage temperature correction value C changes so as to increase at ambient temperatures T 1 to T 4 .
  • the effect of the voltage control becomes whether or eliminated such is less the same value, a range that exceeds the transmit power P a Then, the power supply voltage temperature correction value C is varied according to the transmission power P as described above. Further, in a range exceeding the transmit power P a, as shown in FIG. 4 (b), as the ambient temperature T is higher or lower than the reference temperature T 0, a large rate of change in the supply voltage temperature correction value C.
  • the effect of voltage control is reduced or eliminated at a certain transmission power, as described in “Means for Solving the Problems”, as described in “Basic Noise” (Other than distortion noise in distortion characteristics) ) And distortion noise due to distortion characteristics are reduced or eliminated.
  • the transmission power is lowered while maintaining a good distortion characteristic in the relationship between the power supply voltage and the transmission power, the distortion noise is reduced to a level where it is buried in the basic noise.
  • the control unit 8 has a function of controlling the transmission power of the transmission signal St1, and a function of controlling the power supply voltage Vp. For this reason, the control unit 8 includes a transmission power control unit 81 and a power supply voltage control unit 82.
  • the transmission power control unit 81 generates a transmission power control signal Spw to be given to the AGC amplifier 20 based on the designated transmission power Ps given from the outside.
  • the transmission power control unit 81 calculates a transmission power control signal Spw corresponding to the designated transmission power Ps by a known method.
  • the transmission power control unit 81 may calculate the transmission power control signal Spw by linear interpolation in the same manner as the power supply voltage control unit 82 calculates the power supply voltage set value Vps. Therefore, a table is prepared in which the transmission power P and the transmission power control signal Spw are associated with each other in the same manner as the transmission power P and the power supply voltage setting value VP in the power supply voltage setting value table TBL2. This table may be set, for example, in the storage unit 7 or the like.
  • the transmission power control unit 81 converts the calculated transmission power control signal Spw (digital value) into analog and outputs it.
  • the power supply voltage control unit 82 (power supply voltage control means) generates a power supply voltage control signal Sp for controlling the power supply voltage Vp based on the detected temperature Td and the designated transmission power Ps.
  • the power supply voltage control unit 82 includes a power supply voltage setting unit 82a, a temperature correction unit 82b, and an addition unit 82c in order to generate the power supply voltage control signal Sp.
  • the power supply voltage setting unit 82a refers to the power supply voltage setting value table TBL2 and determines a power supply voltage setting value Vps (corresponding basic value) corresponding to the designated transmission power Ps.
  • the method for determining the power supply voltage setting value Vps by the power supply voltage setting unit 82a is not particularly limited, and examples thereof include the following method.
  • the power supply voltage setting unit 82a reads the power supply voltage setting value VP corresponding to the transmission power P closest to the designated transmission power Ps from the power supply voltage setting value table TBL2 as the power supply voltage setting value Vps.
  • the accuracy of the obtained power supply voltage setting value Vps increases as the transmission power P interval decreases.
  • the power supply voltage setting unit 82a may calculate the power supply voltage set value Vps by linear interpolation. Specifically, the power supply voltage setting unit 82a reads the two transmission powers P closest to the designated transmission power Ps and the power supply voltage setting values VP corresponding to these from the power supply voltage setting value table TBL2. Then, the power supply voltage setting unit 82a calculates the power supply voltage set value Vps by performing linear interpolation using these read values and the designated transmission power Ps. In this case, since linear interpolation is used, the power supply voltage setting value Vps that substantially corresponds to the designated transmission power Ps is obtained, and therefore, the accuracy is higher than that of the above method.
  • the transmission power Ps is equal a value between the transmission power P 1, P 2, and the transmission power P 1, P 2, a power supply voltage set value corresponding to these Vp 1, Vp 2 and are read out. Then, the power supply voltage set value Vps is calculated by the calculation according to the following equation using these values.
  • the temperature correction unit 82b refers to the power supply voltage setting value table TBL1, and determines a power supply voltage temperature correction value Cd (corresponding correction value) corresponding to the detected temperature Td and the designated transmission power Ps.
  • the method by which the temperature correction unit 82b determines the power supply voltage temperature correction value Cd is not particularly limited, and examples thereof include the following method.
  • the temperature correction unit 82b corresponds to the power supply voltage temperature correction value C corresponding to the ambient power T closest to the detected temperature Td and corresponding to the transmission power P closest to the designated transmission power Ps. Is read as the power supply voltage temperature correction value Cd.
  • the power supply voltage temperature correction value Cd since the power supply voltage temperature correction value Cd corresponding to the detected temperature Td and the designated transmission power Ps is approximately obtained, the power supply voltage temperature correction value Cd to be obtained becomes smaller as the interval between the ambient temperature T and the transmission power P is narrower. The accuracy of.
  • the temperature correction unit 82b calculates the power supply voltage temperature correction value Cd corresponding to the detected temperature Td and the designated transmission power Ps from the power supply voltage temperature correction value table TBL1 by linear interpolation. Specifically, the temperature correction unit 82b reads the two ambient temperatures T closest to the detected temperature Td from the power supply voltage temperature correction value table TBL1, and designates the two power supply voltage temperature correction values C corresponding thereto as the designated transmission power. Read the two transmission powers P closest to Ps. Further, the temperature correction unit 82b calculates a power supply voltage temperature correction value Cd corresponding to the detected temperature Td for the two transmission powers P based on the read values and the detected temperature Td, and stores them in the storage unit 7 and the like.
  • the temperature correction unit 82b calculates the power supply voltage temperature correction value Cd corresponding to the detected temperature Td and the designated transmission power Ps from the power supply voltage temperature correction value table TBL1 by linear interpolation. Specifically, the temperature correction unit 82b reads the two ambient temperatures T closest to the detected
  • the temperature correction unit 82b reads the two transmission powers P from the power supply voltage temperature correction value table TBL1, and also reads the two power supply voltage temperature correction values Cd calculated as described above. Then, the temperature correction unit 82b calculates a power supply voltage temperature correction value Cd corresponding to the designated transmission power Ps based on these read values and the designated transmission power Ps.
  • the power supply voltage temperature correction value Cd substantially corresponding to the detected temperature Td and the designated transmission power Ps can be obtained, so that the accuracy is higher than the above method.
  • the ambient temperatures T 0 and T 1 and the transmission power Ps are read out.
  • power supply voltage temperature correction values Cd 1 and Cd 2 corresponding to the detected temperature Td are calculated by the following formula using the values read for the transmission powers P 1 and P 2 .
  • the power supply voltage temperature correction value Cd is calculated by the following equation using the power supply voltage temperature correction values Cd 1 and Cd 2 and the transmission powers P 1 and P 2 .
  • the adder 82c adds the power supply voltage temperature correction value Cd to the power supply voltage setting value Vps, which is a basic value, to generate a power supply voltage control signal Sp.
  • the transmission power control unit 81 In the control unit 8, the transmission power control unit 81 generates a transmission power control signal Spw based on the designated transmission power Ps. Then, in the RFIC 2, the gain of the AGC amplifier 20 is controlled by the transmission power control signal Spw. Thereby, the transmission signal St1 is output in a state in which the transmission power is controlled to be kept at the designated transmission power Ps.
  • the transmission signal St1 output from the RFIC 2 is amplified by the power amplifier 3 and output as the transmission signal St2.
  • the power supply voltage Vp of the power amplifier 3 is controlled based on the detected temperature Td detected by the temperature sensor 6.
  • the power supply voltage setting unit 82a determines the power supply voltage setting value Vps corresponding to the designated transmission power Ps with reference to the power supply voltage setting value table TBL2.
  • the temperature correction unit 82b determines the power supply voltage temperature correction value Cd corresponding to the detected temperature Td and the designated transmission power Ps with reference to the power supply voltage temperature correction value table TBL1.
  • the power supply voltage control signal Sp is generated by adding the power supply voltage temperature correction value Cd to the power supply voltage set value Vps by the adder 82c.
  • the DC / DC converter 4 controls the battery voltage Vbat output from the battery 5 based on the power supply voltage control signal Sp, thereby adjusting the power supply voltage Vp.
  • the power supply voltage Vp is set as a voltage corresponding to the ambient temperature (detected temperature Td) of the power amplifier 3 and the designated transmission power Ps by being controlled as described above.
  • the power amplifier 3 is applied with the power supply voltage Vp corresponding to the ambient temperature and the designated transmission power Ps.
  • the distortion characteristics of a power amplifier with variable power supply voltage such as the power amplifier 3 are generally improved when the power supply voltage Vp is increased, and worsened when the power supply voltage Vp is decreased. Therefore, when the distortion characteristic has deteriorated to a predetermined level due to the detection temperature Td of the temperature sensor 6, the power supply voltage control unit 82 corrects the power supply voltage Vp to be high. On the other hand, when the detected temperature Td is low and the distortion characteristic has a margin up to the predetermined level, the power supply voltage control unit 82 corrects the power supply voltage Vp to be low. As a result, the distortion characteristics of the power amplifier 3 are deteriorated, but the power amplifier 3 is corrected so that a margin is not large.
  • the distortion characteristic of the power amplifier 3 also changes depending on the transmission power of the transmission signal St1. Therefore, the power supply voltage control unit 82 corrects the power supply voltage control signal Sp according to the designated transmission power Ps, whereby the power supply voltage Vp is controlled to a value according to the designated transmission power Ps. As a result, the distortion characteristic of the power amplifier 3 is adjusted according to the transmission power of the transmission signal St1.
  • the power amplifier 3 has a property that even if the power supply voltage Vp changes, the current consumption does not change unless the transmission power of the transmission signal St1 changes. Therefore, when the power supply voltage Vp of the power amplifier 3 is increased, the output power of the DC / DC converter 4 is increased and the current consumption of the battery 5 is increased. Conversely, when the power supply voltage Vp of the power amplifier 3 is lowered, the output power of the DC / DC converter 4 is lowered and the current consumption of the battery 5 is reduced. That is, when the transmission power is constant, the current consumption of the transmitter 1 can be controlled by controlling the power supply voltage Vp of the power amplifier 3.
  • the transmitter 1 includes the power supply voltage temperature correction value table TBL1 and the power supply voltage control unit 82, thereby appropriately setting the power supply voltage temperature correction value C according to the designated transmission power Ps. To do. Therefore, the transmitter 1 corrects the temperature of the power supply voltage Vp of the power amplifier 3 according to the transmission power of the transmission signal St1. Therefore, the temperature correction of the distortion characteristics of the power amplifier 3 can be realized optimally for any transmission power within the transmission power variable range. For this reason, compared with the conventional temperature correction of the power supply voltage that is not performed in consideration of the transmission power, it is possible to reduce the room for reducing the current consumption.
  • FIG. 5 shows a configuration of the transmitter 11 according to the present embodiment.
  • the transmitter 11 includes the RFIC 2, the battery 5, and the temperature sensor 6, as well as the transmitter 1 described above, and further includes a bias voltage supply unit 14.
  • the transmitter 11 includes a power amplifier 12, a power supply voltage supply unit 13, a storage unit 15, and a control unit 16 instead of the power amplifier 3, the DC / DC converter 4, the storage unit 7, and the control unit 8 of the transmitter 1. ing.
  • the power amplifier 12 is an amplifier that amplifies the transmission signal St1 output from the RFIC 2 and outputs the amplified signal as a transmission signal St2 to an antenna (not shown). Further, the bias voltage Vb of the power amplifier 12 is variable. The bias voltage Vb is given by the bias power supply unit 14.
  • the power supply voltage supply unit 13 is a circuit that generates a constant power supply voltage Vp based on the battery voltage Vbat supplied from the battery 5 in order to output the power supply voltage Vp supplied to the power amplifier 12. For example, a circuit that outputs a predetermined voltage with respect to an input voltage such as a stabilized power supply is used as the power supply voltage supply unit 13.
  • the bias voltage supply unit 14 (bias voltage variable means) is a voltage conversion circuit that converts the battery voltage Vbat supplied from the battery 5 into a predetermined bias voltage Vb. Further, the bias voltage supply unit 14 adjusts the value of the output voltage, that is, the bias voltage Vb, according to the bias voltage control signal Sb given from the control unit 8.
  • the storage unit 15 (storage means) is provided for storing the bias voltage temperature correction value table TBL11 and the bias voltage setting value table TBL12, and is configured by a memory, for example.
  • bias voltage temperature correction value table TBL11 and the bias voltage set value table TBL12 will be described.
  • 6A shows the configuration of the bias voltage temperature correction value table TBL11
  • FIG. 6B shows the configuration of the bias voltage set value table TBL12.
  • the signs of the ambient temperature, transmission power, bias voltage temperature correction value, and bias voltage setting value are T, P, D, and VB, respectively.
  • the bias voltage temperature correction value table TBL11 (bias voltage correction value table) includes an ambient temperature T (temperature value) and a transmission power P (power value) at which a plurality of different values are set.
  • a bias voltage temperature correction value D for correcting the bias voltage Vb is individually associated with each other.
  • the ambient temperature T, transmission power P, and bias voltage temperature correction value D are set as follows in the bias voltage temperature correction value table TBL11.
  • the ambient temperatures T ⁇ 1 , T ⁇ 2 ,..., T ⁇ n , T 1 , and so on can be corrected according to changes in the ambient temperature T.
  • T 2 ,..., T m are set at appropriate intervals.
  • n pieces of ambient temperature T -1, T -2, ..., T -n is the cold-side value than the reference temperature T
  • m pieces of the ambient temperature T 1, T 2, ..., T m is the reference temperature T The value is higher than 0 .
  • a reference temperature T 0 is determined, and bias voltage setting values Vb 0 , Vb 1 , Vb corresponding to transmission powers P 0 , P 1 ,..., P k when the reference temperature T 0 and the detected temperature Td are equal. ..., Vb k is determined.
  • the bias voltage set value table TBL12 is created.
  • the bias voltage set values Vb 0 , Vb 1 ,..., Vb k are obtained experimentally by operating the power amplifier 12 to be used. For example, although not shown, a power supply voltage set value Vp 0, Vp 1 shown in FIG. 3 (a), ..., as with Vp k, the bias voltage set value Vb 0, Vb 1, ..., for even Vb k, P It is set corresponding to 0 , P 1 ,..., P 10 .
  • a bias voltage temperature correction value D when the ambient temperature T changes is determined.
  • the bias voltage temperature correction value table TBL11 is created.
  • the bias voltage temperature correction values D h0 , D h1 ,..., D hk are obtained experimentally by operating the power amplifier 12 that is actually used.
  • the bias voltage temperature correction value D corresponds to P 0 , P 1 ,..., P 10 as well as the power supply voltage temperature correction value C shown in FIGS. Is set.
  • the bias voltage temperature correction value D is varied according to the transmission power P. As described in the first embodiment, this is because the effect of voltage control is reduced or eliminated with a certain transmission power.
  • the control unit 16 has a function of controlling the transmission power of the transmission signal St1, and a function of controlling the bias voltage Vb. For this reason, the control unit 16 includes a transmission power control unit 161 and a bias voltage control unit 162.
  • the transmission power control unit 161 has the same function as the transmission power control unit 81 of the control unit 8 in the transmitter 1 described above. Therefore, the detailed description is omitted here.
  • the bias voltage control unit 162 (bias voltage control means) generates a bias voltage control signal Sb for controlling the bias voltage Vb based on the detected temperature Td and the designated transmission power Ps.
  • the bias voltage control unit 162 includes a bias voltage setting unit 162a, a temperature correction unit 162b, and an addition unit 162c in order to generate the bias voltage control signal Sb.
  • the bias voltage setting unit 162a refers to the bias voltage setting value table TBL12 to determine a bias voltage setting value Vbs (corresponding basic value) corresponding to the designated transmission power Ps.
  • the method by which the bias voltage setting unit 162a determines the bias voltage setting value Vbs is not particularly limited, and examples thereof include the following method.
  • the bias voltage setting unit 162a reads the bias voltage setting value VB corresponding to the transmission power P closest to the designated transmission power Ps from the bias voltage setting value table TBL12 as the bias voltage setting value Vbs.
  • the bias voltage setting value Vbs corresponding to the designated transmission power Ps is approximately obtained, the accuracy of the obtained bias voltage setting value Vbs becomes higher as the interval of the transmission power P is narrower.
  • the bias voltage setting unit 162a may calculate the bias voltage setting value Vbs by linear interpolation. Specifically, the bias voltage setting unit 162a reads the two transmission powers P closest to the designated transmission power Ps and the corresponding bias voltage setting values VB from the bias voltage setting value table TBL12. Then, the bias voltage setting unit 162a calculates the bias voltage setting value Vbs by linear interpolation using these read values and the designated transmission power Ps. In this case, since the linear interpolation is used, the bias voltage set value Vbs substantially corresponding to the designated transmission power Ps can be obtained, so that the accuracy is higher than the above method.
  • the transmission power Ps is equal a value between the transmission power P 1, P 2, and the transmission power P 1, P 2, the bias voltage set value corresponding to these Vb 1, Vb 2 and are read out. Then, the bias voltage set value Vbs is calculated by the following equation using these values.
  • the temperature correction unit 162b refers to the bias voltage setting value table TBL11 and determines a bias voltage temperature correction value Dd (corresponding correction value) corresponding to the detected temperature Td and the designated transmission power Ps.
  • the method by which the temperature correction unit 162b determines the bias voltage temperature correction value Dd is not particularly limited, and examples thereof include the following method.
  • the temperature correction unit 162b corresponds to the ambient temperature T closest to the detected temperature Td and the bias voltage temperature correction value D corresponding to the transmission power P closest to the designated transmission power Ps. Is read as the bias voltage temperature correction value Dd.
  • the bias voltage temperature correction value Dd corresponding to the detected temperature Td and the designated transmission power Ps is approximately obtained, the smaller the interval between the ambient temperature T and the transmission power P is, the smaller the bias voltage temperature correction value Dd obtained is. The accuracy of.
  • the temperature correction unit 162b calculates the bias voltage temperature correction value Dd corresponding to the detected temperature Td and the specified transmission power Ps from the bias voltage temperature correction value table TBL11 by linear interpolation. Specifically, the temperature correction unit 162b reads the two ambient temperatures T closest to the detected temperature Td from the bias voltage temperature correction value table TBL11, and designates the two bias voltage temperature correction values D corresponding thereto as the designated transmission power. Read out for each of the two transmission powers P closest to Ps. Further, the temperature correction unit 162b calculates a bias voltage temperature correction value Dd corresponding to the detected temperature Td for each transmission power P based on the read values and the detected temperature Td, and stores them in the storage unit 15 or the like.
  • the temperature correction unit 162b reads the two transmission powers P from the bias voltage temperature correction value table TBL11, and also reads the two bias voltage temperature correction values Dd calculated as described above. Then, the temperature correction unit 162b calculates a bias voltage temperature correction value Dd corresponding to the designated transmission power Ps based on the read values and the designated transmission power Ps.
  • the bias voltage temperature correction value Dd substantially corresponding to the detected temperature Td and the designated transmission power Ps is obtained, so that the accuracy is higher than the above method.
  • the ambient temperatures T 0 and T 1 and the transmission power Bias voltage temperature correction values D 01 , D 11 , D 02 and D 12 corresponding to P 1 and P 2 are read out.
  • bias voltage temperature correction values Dd 1 and Dd 2 corresponding to the detected temperature Td are calculated by the following formula using the values read for the transmission powers P 1 and P 2 .
  • the bias voltage temperature correction value Dd is calculated by the following equation using the bias voltage temperature correction values Dd 1 and Dd 2 and the transmission powers P 1 and P 2 .
  • the adder 162c adds the bias voltage temperature correction value Dd to the bias voltage setting value Vbs, which is a basic value, to generate a bias voltage control signal Sb.
  • the transmission power control unit 161 In the control unit 16, the transmission power control unit 161 generates a transmission power control signal Spw based on the designated transmission power Ps. Then, in the RFIC 2, the gain of the AGC amplifier 20 is controlled by the transmission power control signal Spw. Thereby, the transmission signal St1 is output in a state in which the transmission power is controlled to be kept at the designated transmission power Ps.
  • the transmission signal St1 output from the RFIC 2 is amplified by the power amplifier 12 and output as the transmission signal St2.
  • the bias voltage Vb of the power amplifier 12 is controlled based on the detected temperature Td detected by the temperature sensor 6.
  • the bias voltage setting unit 162a determines the bias voltage setting value Vbs corresponding to the designated transmission power Ps with reference to the bias voltage setting value table TBL12.
  • the temperature correction unit 162b determines a bias voltage temperature correction value Dd corresponding to the detected temperature Td and the designated transmission power Ps with reference to the bias voltage temperature correction value table TBL11.
  • the bias voltage control signal Sb is generated by adding the bias voltage temperature correction value Dd to the bias voltage set value Vbs by the adder 162c.
  • the bias voltage supply unit 14 controls the battery voltage Vbat output from the battery 5 based on the bias voltage control signal Sb, thereby adjusting the bias voltage Vb.
  • the bias voltage Vb is set to a voltage corresponding to the ambient temperature (detected temperature Td) of the power amplifier 12 and the designated transmission power Ps by being controlled as described above.
  • the power amplifier 12 is applied with the bias voltage Vb corresponding to the ambient temperature and the designated transmission power Ps.
  • the distortion characteristic is improved when the bias voltage Vb is increased, but the current consumption increases, whereas the distortion characteristic is deteriorated when the bias voltage Vb is decreased.
  • current consumption tends to decrease. Therefore, when the distortion characteristic has deteriorated to a predetermined level due to the detected temperature Td of the temperature sensor 6, the bias voltage control unit 162 corrects the bias voltage Vb to be high.
  • the bias voltage controller 162 corrects the bias voltage Vb to be low. As a result, the distortion characteristics of the power amplifier 12 are deteriorated, but the power amplifier 12 is corrected so that a margin is not large.
  • the bias voltage control unit 162 corrects the bias voltage control signal Sb according to the designated transmission power Ps, so that the bias voltage Vb is controlled to a value according to the designated transmission power Ps. As a result, the distortion characteristic of the power amplifier 12 is adjusted according to the transmission power of the transmission signal St1.
  • the transmitter 11 includes the bias voltage temperature correction value table TBL11 and the bias voltage control unit 162, so that the bias voltage temperature correction value D is appropriately set according to the designated transmission power Ps. To do. Therefore, the transmitter 11 corrects the temperature of the bias voltage Vb of the power amplifier 12 according to the transmission power of the transmission signal St1. Thereby, the temperature correction of the distortion characteristic of the power amplifier 12 can be realized optimally for any transmission power within the variable transmission power range. For this reason, compared with the conventional temperature correction of the power supply voltage that is not performed in consideration of the transmission power, it is possible to reduce the room for reducing the current consumption.
  • FIG. 7 shows a configuration of the transmitter 21 according to the present embodiment.
  • the transmitter 21 includes the RFIC 2, the DC / DC converter 4, the battery 5, and the temperature sensor 6 similarly to the transmitter 1 described above, and similarly to the transmitter 11 described above.
  • a bias voltage supply unit 14 is provided.
  • the transmitter 21 includes a power amplifier 22, a storage unit 23, and a control unit 24 instead of the power amplifier 3, the storage unit 7, and the control unit 8 of the transmitter 1.
  • the power amplifier 22 is an amplifier that amplifies the transmission signal St1 output from the RFIC 2 and outputs the amplified signal to a not-shown antenna as the transmission signal St2. Further, the power supply voltage Vp of the power amplifier 22 is variable like the power supply voltage Vp of the power amplifier 3. This power supply voltage Vp is given by the DC / DC converter 4. Further, the bias voltage Vb of the power amplifier 22 is variable like the bias voltage Vb of the power amplifier 12. The bias voltage Vb is given by the bias power supply unit 14.
  • the storage unit 23 is provided to store a power supply voltage temperature correction value table TBL1, a power supply voltage setting value table TBL2, a bias voltage temperature correction value table TBL11, and a bias voltage setting value table TBL12. Consists of.
  • the control unit 24 has a function of controlling the transmission power P of the transmission signal St, a function of controlling the power supply voltage Vp, and a function of controlling the bias voltage Vb. Therefore, the control unit 24 includes a transmission power control unit 241, a power supply voltage control unit 242, and a bias voltage control unit 243.
  • the transmission power control unit 241 has a function equivalent to that of the transmission power control unit 81 of the control unit 8 in the transmitter 1 described above.
  • the power supply voltage control unit 242 (power supply voltage control means) has a function equivalent to that of the power supply voltage control unit 82 of the control unit 8, and includes a power supply voltage setting unit 82a, a temperature correction unit 82b, and an addition unit 82c.
  • the bias voltage control unit 243 (bias voltage control means) has the same function as the bias voltage control unit 162 of the control unit 16 in the transmitter 11 described above, and includes a bias voltage setting unit 162a and a temperature correction unit 162b. And an adder 162c. Therefore, description of these details is omitted here.
  • the transmission power control unit 241 In the control unit 24, the transmission power control unit 241 generates a transmission power control signal Spw based on the designated transmission power Ps. Then, in the RFIC 2, the gain of the AGC amplifier 20 is controlled by the transmission power control signal Spw. Thereby, the transmission signal St1 is output in a state in which the transmission power is controlled to be kept at the designated transmission power Ps.
  • the transmission signal St1 output from the RFIC 2 is amplified by the power amplifier 22 and output as the transmission signal St2.
  • the power supply voltage Vp and the bias voltage Vb of the power amplifier 22 are controlled based on the detected temperature Td detected by the temperature sensor 6.
  • the power supply voltage control unit 242 generates a power supply voltage control signal Sp corresponding to the detected temperature Td and the designated transmission power Ps in the same manner as the power supply voltage control unit 82 described above.
  • the bias voltage control unit 243 generates a bias voltage control signal Sb corresponding to the detected temperature Td and the designated transmission power Ps in the same manner as the bias voltage control unit 162 described above.
  • the DC / DC converter 4 adjusts the power supply voltage Vp based on the power supply voltage control signal Sp.
  • the bias voltage supply unit 14 adjusts the bias voltage Vb based on the bias voltage control signal Sb.
  • the power supply voltage Vp and the bias voltage Vb are set as voltages according to the ambient temperature (detected temperature Td) of the power amplifier 22 and the designated transmission power Ps by being controlled as described above.
  • the transmitter 21 includes the power supply voltage temperature correction value table TBL1, the bias voltage temperature correction value table TBL11, the power supply voltage control unit 242, and the bias voltage control unit 243.
  • the transmitter 21 appropriately sets the power supply voltage temperature correction value C and the bias voltage temperature correction value D according to the designated transmission power Ps. Therefore, the transmitter 21 corrects the temperature of the power supply voltage Vp and the bias voltage Vb of the power amplifier 22 according to the transmission power of the transmission signal St1. Therefore, the temperature correction amounts of the power supply voltage Vp and the bias voltage Vb can be appropriately set according to the characteristics of the power amplifier 22.
  • the tables TBL1, 2, 11, and 12 are used, the design of the transmitter 21 is complicated, but the current consumption can be more effectively suppressed as compared with the transmitters 1 and 11. .
  • Each block of the control units 8, 16, and 24 in each of the above-described embodiments may be configured by hardware logic, or may be realized by software (voltage control program) using a CPU as follows.
  • each of the above blocks includes a CPU (Central Processing Unit) that executes instructions of a control program that realizes each function, a ROM (Read Only Memory) that stores the control program, and a RAM (Random Access Memory that expands the control program) ),
  • a storage device such as a memory for storing the control program and various data.
  • An object of the present invention is to provide a recording medium in which program codes (execution format program, intermediate code program, source program) of software that realizes the above-described functions are recorded in a transmitter 1, 11, 21 in a computer-readable manner. This can also be achieved by supplying and reading and executing the program code recorded on the recording medium by the CPU.
  • Examples of the recording medium include magnetic tapes such as magnetic tapes and cassette tapes, magnetic disks such as floppy (registered trademark) disks / hard disks, and optical disks such as CD-ROM / MO / MD / BD / DVD / CD-R.
  • the transmitters 1, 11 and 21 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network.
  • the communication network is not particularly limited.
  • the Internet intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available.
  • the transmission medium constituting the communication network is not particularly limited.
  • infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used.
  • the present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.
  • the present invention can be suitably used for a transmitter including a power amplifier and a wireless communication device including the transmitter.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)

Abstract

Selon l'invention, une section de commande de la puissance d'émission (81) produit, en fonction d'une puissance d'émission déterminée (Ps), un signal de commande de la puissance d'émission (Spw) afin de commander le gain d'un amplificateur à CAG (20), de telle manière que la puissance d'émission d'un signal émis (St1) est maintenue à une puissance d'émission déterminée (Ps). Une section (82a) de réglage de la tension d'une alimentation électrique consulte une table (TBL2) des valeurs de réglage de la tension de l'alimentation électrique et calcule une valeur de réglage de la tension de l'alimentation électrique correspondant à la puissance d'émission déterminée (Ps). Une section de correction de température (82b) consulte une table (TBL1) de valeurs de correction de température de la tension de l'alimentation électrique et calcule une valeur de correction de température de la tension de l'alimentation électrique qui correspond à une température mesurée (Td) par un capteur de température (6). Une section d'addition (82c) ajoute la valeur de correction de température de la tension de l'alimentation électrique et la valeur de réglage de la tension de l'alimentation électrique et produit en sortie un signal de commande de la tension de l'alimentation électrique (Sp). Un convertisseur continu-continu (4), conformément au signal de commande de la tension de l'alimentation électrique (Sp), ajuste la tension de l'alimentation électrique (Vp) à une valeur correspondant à la température mesurée (Td) et à la puissance d'émission déterminée (Ps).
PCT/JP2012/052145 2011-02-25 2012-01-31 Émetteur, programme de commande de la tension et support d'enregistrement sur lequel est enregistré un programme de commande de la tension Ceased WO2012114836A1 (fr)

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Cited By (2)

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JP2015191119A (ja) * 2014-03-28 2015-11-02 シナプティクス・ディスプレイ・デバイス合同会社 半導体装置
FR3023998A1 (fr) * 2014-07-18 2016-01-22 Thales Sa Procede de compensation numerique des variations, en fonction de la temperature, d'une grandeur electrique d'un equipement de telecommunications radiofrequence spatial embarque

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JPH11346134A (ja) * 1998-06-02 1999-12-14 Nec Corp 電力増幅回路および電力自動制御方法
JP2000252914A (ja) * 1999-02-25 2000-09-14 Fujitsu Ltd 増幅器の制御装置及びその制御方法
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JPH07170202A (ja) * 1993-12-15 1995-07-04 Hitachi Ltd 送信回路
JPH08204587A (ja) * 1995-01-23 1996-08-09 Fujitsu Ltd 携帯電話機
JPH08222963A (ja) * 1995-02-10 1996-08-30 Sanyo Electric Co Ltd 送信電力制御回路
JPH10336046A (ja) * 1997-06-02 1998-12-18 Hitachi Ltd 無線通信方法および無線通信機ならびに高周波パワーモジュール
JPH11346134A (ja) * 1998-06-02 1999-12-14 Nec Corp 電力増幅回路および電力自動制御方法
JP2000252914A (ja) * 1999-02-25 2000-09-14 Fujitsu Ltd 増幅器の制御装置及びその制御方法
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Publication number Priority date Publication date Assignee Title
JP2015191119A (ja) * 2014-03-28 2015-11-02 シナプティクス・ディスプレイ・デバイス合同会社 半導体装置
FR3023998A1 (fr) * 2014-07-18 2016-01-22 Thales Sa Procede de compensation numerique des variations, en fonction de la temperature, d'une grandeur electrique d'un equipement de telecommunications radiofrequence spatial embarque
EP2978127A1 (fr) * 2014-07-18 2016-01-27 Thales Procédé de compensation numérique des variations, en fonction de la température, d'une grandeur électrique d'un équipement de télécommunications radiofréquence spatial embarqué
US9287842B2 (en) 2014-07-18 2016-03-15 Thales Method for digitally compensating variations, as a function of temperature, of an electrical quantity of an embedded space radiofrequency telecommunications equipment item

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