EP3707814A1 - Convertisseur de puissance a tres haute frequence de commutation - Google Patents
Convertisseur de puissance a tres haute frequence de commutationInfo
- Publication number
- EP3707814A1 EP3707814A1 EP18796422.6A EP18796422A EP3707814A1 EP 3707814 A1 EP3707814 A1 EP 3707814A1 EP 18796422 A EP18796422 A EP 18796422A EP 3707814 A1 EP3707814 A1 EP 3707814A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- capacitor
- voltage
- power switch
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5383—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a self-oscillating arrangement
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/1557—Single ended primary inductor converters [SEPIC]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
- H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
- H02M3/28—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC
- H02M3/325—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/4815—Resonant converters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Definitions
- the invention relates to a very high frequency switching power converter, as well as to a very high frequency switching power conversion method.
- the invention finds its application in particular in the conversion of a DC voltage to an AC or DC voltage, in HF and VHF radio frequency ranges (from 3 to 300 MHz, and in particular the free band at 27 MHz). Switching the converter in the radio frequency ranges makes it possible to reduce the size of the reactive components (inductors, capacitors) of the power conversion circuits, and thus reduce the overall volume of the power conversion chain, which may be advantageous. for applications where compactness and mass are important constraints.
- the switching is performed with a power switch, in particular with a field effect transistor.
- the transistor switches from the on state to the off state or vice versa, thanks to a control circuit called gate driver circuit (or "driver driver” in the English terminology).
- gate driver circuit or "driver driver” in the English terminology.
- one or more resistors can be added to the gate of the transistor in order to control the voltage or current variations on the transistor at the start of the converter (so-called non-resonant structure).
- non-resonant structure At each switching command transmitted by the gate driver to the transistor, there is a power dissipation in the one or more resistors added to the gate of the transistor.
- a gate driver having a so-called resonant structure can be employed, from passive energy storage components (capacitors and inductors), instead of using a non-resonant structure.
- the resonant structure in contrast to the non-resonant structure, makes it possible to store energy during a switching phase of the transistor, and to restore it during the next phase instead of dissipating it in the parasitic elements of the transistor. .
- a resonant network composed of an inductor and a capacitor, is placed between the drain of the transistor and the load resistor.
- the values of the components of the resonant network and of the output capacitance (also called shunt capacitance) of the transistor are selected such that the voltage V D s across the transistor is zero at each switching of the transistor, the on-state in the off state and vice versa.
- the losses in a transistor being due to the product of the voltage at its terminals by the current passing through it, a zero voltage at each switching makes it possible to minimize the losses.
- WO 2014067915 discloses a gate drive circuit for a class E converter.
- the gate drive circuit uses the drain-source voltage Vds to drive the gate of the transistor and thereby generate a switching signal, and without using auxiliary voltage source.
- the gate driver circuit is said to be "self-oscillating".
- one of the disadvantages of class E lies in the presence of a choke coil, connected to the voltage source to be converted, whose role is notably to have a current that is as constant as possible in steady state, and to transform thus the source of voltage in current source.
- the choke coil must have a value high, which prevents its integration on a printed circuit board.
- the choke coil must then be arranged separately from the converter, which adds mass, and can be unacceptable for certain applications where the mass is a critical parameter.
- a second drawback related to the class E lies in the very large voltage stress on the transistor.
- the drain-source voltage (Vds) is in fact approximately equal to four times the input voltage, which implies using a transistor with a relatively high RDSON resistance, affecting the transistor efficiency.
- a class ⁇ 2 converter illustrated in FIG. 1, comprises an input inductor L1, connected to the voltage source V
- the gate of the transistor is controlled by the gate drive circuit 12.
- the L2-C1 filter is added in parallel with the transistor in order to short-circuit the second harmonic of the drain-source voltage of the transistor and thus reduce the voltage stress. on the transistor.
- FIG. 2 illustrates the waveform of the drain-source voltage Vds in a class ⁇ 2 converter at a switching frequency of 30 MHz.
- the input voltage is equal to 20 V
- the drain-source voltage is equal to about twice the input voltage, which limits the voltage stress on the transistor.
- the lower voltage stress makes it possible to consider the parasitic capacitance as being more stable in value, which facilitates its modeling.
- the gate driver described previously in WO 201 406791 5, is well suited to a class E converter. However, this gate driver is not suitable for waveforms of class ⁇ 2 converters. .
- a gate driver for class ⁇ 2 converter is described in WO 2007/082090.
- the circuit disclosed in this document makes it possible to generate a switching signal (sinusoidal or square) for the transistor transistor gate of the class ⁇ 2. It uses for this an additional transistor, in addition to the transistor of the converter, which introduces parasitic elements into the circuit, potentially making the switching frequency of the transistor unstable.
- the disclosed circuit further includes an external voltage source, in addition to the DC voltage source to be converted, which increases the overall weight of the converter.
- An object of the invention is therefore to obtain a self-oscillating gate drive circuit, namely not involving an additional voltage source or additional transistor, for a DC voltage converter class ⁇ 2.
- An object of the invention making it possible to achieve this goal, partially or totally, is a resonant power converter of a continuous input voltage in AC or DC output voltage, comprising a power switch provided with a control, a first electrode and a second electrode connected to the ground of the converter, and a first inductor connected to an input port for a DC voltage to be converted, the first electrode being connected to the input port through the first inductor, the converter further comprising a first connected resonant network between the first electrode of the power switch and the ground, the first resonant network being configured to extract the fundamental component of a voltage between the first electrode and the second electrode of the power switch and to phase out a phase shift angle such that said fundamental component and the voltage between the first electrode and the second electrode are in phase opposition and thus generate a sinusoidal control signal, the converter further comprising a capacitive divider bridge connected between the first resonant network and the power switch control electrode to limit the amp study of the sinusoidal control signal for the control electrode of the power switch.
- the first resonant network comprises an oscillating network configured to generate and maintain, with the power switch, oscillations at a desired switching frequency, as well as a filtering module for the DC component of said oscillations, connected between the network oscillating and the divider bridge.
- the phase shift angle is substantially equal to 180 °.
- the converter comprises a first series resonant circuit, connected between the first electrode and the ground, and configured to resonate at a frequency equal to twice the switching frequency.
- the first series resonant circuit comprises a first capacitor and a second inductor.
- the drain is connected to an output port of the converted voltage via a second series resonant circuit.
- the second series resonant circuit comprises a third inductance connected in series with a third capacitor.
- the oscillating network comprises a second capacitor in parallel with an assembly composed of a fourth inductance connected in series with a fifth capacitor and with a sixth capacitor, forming a Clapp oscillator with the transistor, the filtering module being connected to the network. oscillating across the sixth capacitor.
- the oscillating network comprises a second capacitor in parallel with an assembly composed of a fourth inductance connected in series with a sixth capacitor, forming a Colpitts oscillator with the transistor, the filtering module being connected to the oscillating network at the terminals of the sixth capacitor.
- the filter module forms a low-pass LC filter, composed of a fifth inductor connected to the sixth capacitor and the divider bridge, and a seventh capacitor connected to the divider bridge and ground.
- the capacitive divider bridge comprises an eighth capacitor, connected to the first resonant network and the control electrode of the power switch, and a fourth capacitor, connected between the control electrode of the power switch and the mass.
- the switching frequency is set between 3 MHz and 300 MHz.
- Another object of the invention is a method of converting power from a DC input voltage into AC or DC output voltage in a resonant power converter comprising a power switch provided with a control electrode, a first electrode and a second electrode connected to the ground of the converter, and a first inductance connected to an input port for a DC voltage to be converted, the first electrode being connected to the input port via the first inductance, the method comprising the following steps:
- phase-shifting of the fundamental component of a phase shift angle such that said fundamental component and the voltage between the first electrode and the second electrode are in phase opposition, said phase-shifted fundamental component forming a sinusoidal control signal
- the method further comprises an initial step of generating and maintaining oscillations at a switching frequency of the power switch. power switch.
- the method further comprises a step of filtering the DC component of said oscillations between the phase shift step of the fundamental component and the step of reducing the amplitude of the signal.
- FIG. 2 represents a waveform of the drain-source voltage V D s of a class ⁇ 2 converter.
- FIG. 3 represents an electrical circuit of a class ⁇ 2 converter equipped with a gate driver circuit according to a first embodiment of the invention, operating with a Clapp oscillator.
- FIG. 4 represents an electrical circuit of a class ⁇ 2 converter equipped with a gate driver according to a second embodiment of the invention, operating with a Colpitts oscillator.
- FIG. 5 schematically represents the various steps of a method according to the invention.
- FIG. 3 represents an electrical circuit of a class ⁇ 2 converter equipped with a gate driver circuit according to a first embodiment of the invention. Vin continuous voltage is applied to the input of converter, between the input port of the voltage to be converted 9 and GND ground.
- a first inductor L1 is connected between the input port 9 is a node 1 1 which is connected to the drain of the transistor 2 to be switched at a switching frequency f 0 .
- a second inductor L2 and a first capacitor C1 form a first series resonant circuit 3, connected between node 1 1 and ground GND, and configured to resonate at a frequency equal to twice the switching frequency f 0 of the transistor, which corresponds substantially to the second harmonic of the switching frequency f 0 , in order to reduce the voltage stress on the transistor.
- a second series 4 resonant circuit comprising a third inductor L3 connected in series with a third capacitor C3, is connected between the node 1 1 and the output port 10 of the converted voltage.
- the converted voltage is shown diagrammatically in FIG. 3 by a load resistor R1.
- the second capacitor C2 represents the output capacitance of the transistor Cp, represented in FIG. 1, as well as an optional additional capacitor Copt, not shown.
- the second capacitor C2, the fifth capacitor C5, the fourth inductor L4 and the sixth capacitor C6 form an oscillating network 6.
- the oscillating network 6 thus advantageously uses certain parasitic components of the transistor, in particular its output capacitance Cp.
- the assembly composed of the oscillating network 6 and the transistor 2 forms a Clapp oscillator whose role is to create oscillations from the continuous input voltage Vin.
- the oscillations are maintained in the gate driver circuit at a given frequency f 0 .
- the Clapp oscillator has the advantage of being particularly stable in frequency, especially in the radio frequency range.
- the second capacitor C2 is represented between the first series 3 resonant circuit and the branch of the oscillating network 6 composed of the fifth capacitor C5, fourth inductor L4 and sixth capacitor C6.
- the second capacitor C2 could also be shown "right" of the transistor, to better illustrate that it partially represents the output capacitance of the transistor Cp.
- a low-pass LC type filtering module 8 composed of a fifth inductor L5 and a seventh capacitor C7, takes the voltage at the terminals of the sixth capacitor C6 as input; the output signal of the filter module 8 is recovered at the terminals of the seventh capacitor C7.
- the role of this filtering module 8 is to extract the fundamental component of the drain-source voltage signal Vds received by the Clapp oscillator, whose waveform is illustrated in FIG. 2, to remove all the harmonics therefrom. .
- the values of the reactive elements (capacitors and inductances) of the filtering module 8 and of the oscillating network 6 are determined so that the fundamental component of the drain-source voltage signal Vds at the output of the filtering module 8 , and the drain-source voltage Vds, are in phase opposition, preferably out of phase by a value substantially equal to 180 °.
- a capacitive divider bridge 7, composed of a fourth capacitor C4 and an eighth capacitor C8, makes it possible both to suppress the DC component of the voltage at the terminals of the seventh capacitor C7, and to reduce the amplitude of the signal coming from the gate attack circuit.
- the value of the fourth capacitor C4 is determined according to the DC component to be suppressed.
- the value of the eighth capacitor C8 is determined according to the amplitude reduction to be applied. There is thus a sinusoidal control signal at the output of the capacitive divider bridge 7.
- the sinusoidal control signal represents the output signal of the gate drive circuit.
- the phase shift of 180 ° and the suppression of the DC component result in a sinusoidal control signal that is lower than the threshold voltage (Vgsth) of the transistor.
- the transistor is therefore in the off state, and therefore no current flows through it.
- the sinusoidal control signal is greater than the threshold voltage (Vgsth) of the transistor, and the transistor turns on. , with a non-zero current passing through it.
- the operation of the soft switching converter (ZVS) is therefore well respected, limiting switching losses, without the need to use an additional voltage source or other active components.
- the gate driver circuit is then said to be self-oscillating.
- the embodiment illustrated in FIG. 4 differs from the embodiment illustrated in FIG. 3 by the oscillating network.
- the transistor 2 and the oscillating network 6 ' form a Colpitts oscillator.
- the Colpitts oscillator comprises one less capacitor with respect to the Clapp oscillator. Having one less capacitor advantageously makes it possible to reduce the dissipations due to parasitic elements of the capacitor, and thus to increase the efficiency of the converter. with a lower mass.
- the digital values of the fourth inductance L4 ', the sixth capacitor C6', the fifth inductance L5 'and the seventh capacitor C7' may differ from the numerical values of the corresponding components of the Clapp oscillator, to take account of the absence of the fifth capacitor C5.
- FIG. 5 diagrammatically illustrates the different steps of the power conversion method according to the invention.
- the oscillating network (6, 6 ') and the transistor 2 generate and maintain, in the presence of a direct voltage Vin, oscillations at a switching frequency f 0 of the transistor 2.
- the first resonant network 5 extracts the fundamental component of the drain-source voltage V D s of transistor 2.
- the fundamental component of the drain-source voltage V D s of the transistor is phase shifted by an angle of phase shift such that said fundamental component and the drain-source voltage V D s are in opposition phase.
- step 103 the DC component of the phase-shifted fundamental component is filtered by the capacitive divider bridge 7, in order to obtain a sinusoidal control signal for the gate of the transistor 2.
- the amplitude of this signal can be limited to the stage 104, compared to the level required by the gate of transistor 2.
- the value of 5 nH can be assigned to the first inductance, the second inductance the value of 3.3 nH, the first capacitor the value of 188 pF, the third inductor the value 340 nH, and the third capacitor the value 15 pF.
- the sizing of the Clapp oscillator consists in determining the values of the second capacitor C2, the fifth capacitor C5, the fourth inductance L4 and the sixth capacitor C6.
- a value of the fourth inductance L4 is set which is much greater than that of the first inductor L1 but smaller than that of the third inductor L3.
- L4 100 nH.
- the value of the second capacitor C2 may be given by the output capacitance of the transistor 2, substantially equal to 200 pF.
- the value of the sixth capacitor C6 is calculated by the formula of the oscillation frequency of the Clapp oscillator: Knowing the value of C2, C5, L4 and the oscillation frequency that we want to set at 100 MHz, we find a possible value of the sixth capacitor C6. This value can be modified according to the sizing of the components of the filtering module 8.
- the sizing of the filter module 8, of the LC low-pass filter type, whose function is to extract the fundamental component of the drain-source voltage signal received by the Clapp oscillator and to phase shift it by 180 °, is to determine the value of the fifth inductor L5, and the equivalent capacitance of cfu filter be of the filtering module 8, which takes account of the fourth capacitor C4, capacitor C7 of the seventh and the eighth capacitor C8.
- a first condition to impose on the filtering module 8 is that the resonant frequency of the filter module, as determined by the fifth inductor L5 and the equivalent capacitance of the filter cfu be, must be between the oscillator oscillation frequency Clapp (f 0 , here 100Mhz) and twice the same frequency (here 200 MHz), so as not to select higher order harmonics. This translates into the equation:
- a second condition to be imposed on the filtering module 8 is the phase shift of 1 80 ° at the output of the filtering module 8.
- the transfer function of the LC filter is calculated which is given by:
- the transfer function H is required to be a negative real number, which results in:
- the two conditions set allow to have possible values for L5 and CFLi be -
- the design of the capacitive divider bridge 7 consists in determining the values of the fourth capacitor C4, the seventh capacitor C7 and the eighth capacitor C8. We take note that :
- the sizing method of the gate driver components is identical for a Colpitts oscillator, shown in Figure 4. The Colpitts oscillator differs from the Clapp oscillator by one less capacitor (the fifth capacitor C5 ), which has an influence on the numerical values of the different components of the gate driver.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1760531A FR3073343B1 (fr) | 2017-11-09 | 2017-11-09 | Convertisseur de puissance a tres haute frequence de commutation |
| PCT/EP2018/079741 WO2019091833A1 (fr) | 2017-11-09 | 2018-10-30 | Convertisseur de puissance a tres haute frequence de commutation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3707814A1 true EP3707814A1 (fr) | 2020-09-16 |
Family
ID=62017333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18796422.6A Withdrawn EP3707814A1 (fr) | 2017-11-09 | 2018-10-30 | Convertisseur de puissance a tres haute frequence de commutation |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11171556B2 (fr) |
| EP (1) | EP3707814A1 (fr) |
| FR (1) | FR3073343B1 (fr) |
| WO (1) | WO2019091833A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI822501B (zh) * | 2022-12-01 | 2023-11-11 | 國立臺灣科技大學 | 升壓轉換器 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005304231A (ja) * | 2004-04-14 | 2005-10-27 | Tokyo Coil Engineering Kk | Dc−dcコンバータ及びその出力電力増大方法 |
| US20160013640A1 (en) * | 2014-07-14 | 2016-01-14 | Steven E. Summer | Radiation hardened active or circuit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4685041A (en) * | 1985-03-11 | 1987-08-04 | American Telephone And Telegraph Company, At&T Bell Laboratories | Resonant rectifier circuit |
| US4605999A (en) * | 1985-03-11 | 1986-08-12 | At&T Bell Laboratories | Self-oscillating high frequency power converter |
| US7535133B2 (en) * | 2005-05-03 | 2009-05-19 | Massachusetts Institute Of Technology | Methods and apparatus for resistance compression networks |
| WO2007082090A2 (fr) * | 2006-01-12 | 2007-07-19 | Massachusetts Institute Of Technology | Procédés et appareil pour convertisseur résonnant |
| EP3675342A1 (fr) | 2012-11-02 | 2020-07-01 | Danmarks Tekniske Universitet | Convertisseur de puissance résonant auto-oscillant |
| KR20170002447A (ko) * | 2014-04-15 | 2017-01-06 | 덴마크스 텍니스케 유니버시테트 | 공진 dc-dc 파워 컨버터 어셈블리 |
| JP6467967B2 (ja) * | 2015-02-16 | 2019-02-13 | Tdk株式会社 | 共振インバータおよびスイッチング電源装置 |
| JP6787071B2 (ja) * | 2016-11-21 | 2020-11-18 | Tdk株式会社 | 電力変換装置 |
-
2017
- 2017-11-09 FR FR1760531A patent/FR3073343B1/fr active Active
-
2018
- 2018-10-30 WO PCT/EP2018/079741 patent/WO2019091833A1/fr not_active Ceased
- 2018-10-30 US US16/759,920 patent/US11171556B2/en active Active
- 2018-10-30 EP EP18796422.6A patent/EP3707814A1/fr not_active Withdrawn
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| JP2005304231A (ja) * | 2004-04-14 | 2005-10-27 | Tokyo Coil Engineering Kk | Dc−dcコンバータ及びその出力電力増大方法 |
| US20160013640A1 (en) * | 2014-07-14 | 2016-01-14 | Steven E. Summer | Radiation hardened active or circuit |
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| AHN DUKJU ET AL: "Wireless Power Transmission With Self-Regulated Output Voltage for Biomedical Implant", IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA, vol. 61, no. 5, 1 May 2014 (2014-05-01), pages 2225 - 2235, XP011530728, ISSN: 0278-0046, [retrieved on 20131018], DOI: 10.1109/TIE.2013.2273472 * |
| ANTHONY N LASKOVSKI ET AL: "Class-E self-oscillation for the transmission of wireless power to implants", SENSORS AND ACTUATORS A: PHYSICAL, ELSEVIER BV, NL, vol. 171, no. 2, 24 July 2011 (2011-07-24), pages 391 - 397, XP028327858, ISSN: 0924-4247, [retrieved on 20110802], DOI: 10.1016/J.SNA.2011.07.018 * |
| LUNDEN OLLI-PEKKA ET AL: "A simple closed-form analysis of clapp oscillator output power using a novel quasi-linear transistor model", 2014 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS), IEEE, 19 January 2014 (2014-01-19), pages 88 - 90, XP032605332, DOI: 10.1109/RWS.2014.6830073 * |
| RIVAS J M ET AL: "A High-Frequency Resonant Inverter Topology with Low Voltage Stress", POWER ELECTRONICS SPECIALISTS CONFERENCE, 2007. PESC 2007. IEEE, IEEE, PISCATAWAY, NJ, USA, 17 June 2007 (2007-06-17), pages 2705 - 2717, XP031218688, ISBN: 978-1-4244-0654-8 * |
| See also references of WO2019091833A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3073343B1 (fr) | 2019-10-11 |
| FR3073343A1 (fr) | 2019-05-10 |
| WO2019091833A1 (fr) | 2019-05-16 |
| US11171556B2 (en) | 2021-11-09 |
| US20210194344A1 (en) | 2021-06-24 |
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