EP1113352A1 - Steuervorrichtung - Google Patents

Steuervorrichtung Download PDF

Info

Publication number
EP1113352A1
EP1113352A1 EP00403691A EP00403691A EP1113352A1 EP 1113352 A1 EP1113352 A1 EP 1113352A1 EP 00403691 A EP00403691 A EP 00403691A EP 00403691 A EP00403691 A EP 00403691A EP 1113352 A1 EP1113352 A1 EP 1113352A1
Authority
EP
European Patent Office
Prior art keywords
voltage
transistor
satisfied
condition
variable
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.)
Granted
Application number
EP00403691A
Other languages
English (en)
French (fr)
Other versions
EP1113352B1 (de
Inventor
Laurent Micheli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by STMicroelectronics SA filed Critical STMicroelectronics SA
Publication of EP1113352A1 publication Critical patent/EP1113352A1/de
Application granted granted Critical
Publication of EP1113352B1 publication Critical patent/EP1113352B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/569—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/569—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
    • G05F1/571—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overvoltage detector

Definitions

  • the present invention relates to the field of regulators of voltage, of the type providing a constant DC voltage while being themselves supplied by a DC voltage which may vary.
  • a regulator having to provide an output 3.3 volts voltage will be supplied with a DC voltage, for example between 5.1 and 9.5 volts.
  • the upper feed limit of a regulator depends essentially on the technology of the components assets with which it is provided.
  • the object of the present invention is to propose a regulator of tension not destroying itself when the tension to which it is subjected exceeds the breakdown voltage of its active components.
  • the regulating device is supplied by a variable voltage V v and is intended to supply a constant voltage for the supply of consumer elements.
  • the device comprises a regulating element, a means of comparing the variable voltage V v with a reference voltage V ref , a means of dividing the variable voltage V v by a factor k 1 , and a switching means able to supply the regulating element by a voltage V r equal to either the variable voltage V v or the divided variable voltage V v / k 1 , the switching means being controlled by the comparison means so that the regulation is supplied by the variable voltage V v if a voltage condition is satisfied and by the divided variable voltage V v / k 1 if the voltage condition is not satisfied, the variable voltage V v being able to take higher values to those that are capable of supporting the active components of the device.
  • the device may include an inverter mounted at the output of the amplifier to obtain a reverse control signal V - .
  • the means of dividing by the factor k 2 can comprise at least two resistors connected in series between the variable voltage V v and the ground.
  • the means of dividing by the factor k 1 can comprise at least two resistors connected in series between the variable voltage V v and the ground.
  • the means for dividing by factor k 1 and the means for dividing by factor k 2 may include at least one common resistor.
  • the switching means comprises a first transistor, one terminal of which is connected to the input of said switching means and sees the variable voltage V v , another terminal is connected to the output of said switching means and sees the voltage V r , and a control terminal connected to a control means generating a voltage capable of turning the first transistor on if the voltage condition is not satisfied or blocked if the voltage condition is satisfied.
  • the first transistor can be of the MOS type.
  • the switching means comprises at least a second transistor, one terminal of which is connected to the input of said switching means and sees the variable voltage V v , another terminal is connected to the output of said switching means and sees the voltage V r , and a control terminal sees a control voltage equal to the divided variable voltage V v / k 1 able to block the second transistor if the voltage condition is not satisfied and to turn it on if the voltage condition is satisfied so that the voltage V r is equal to the divided variable voltage V v / k 1 .
  • the second transistor can be replaced by an assembly cascode of multiple transistors, for example bipolar, to provide more of current at the output of the switching means.
  • the means for controlling the first transistor comprises a third transistor controlled by an output voltage of the comparison means and a fourth transistor controlled by the reverse of said output voltage of the comparison means, the third transistor being connected by a terminal to ground and by another terminal at the output of the switching means seeing the voltage V r via two resistors R21 and R22 in series, the point common to said two resistors seeing the voltage V r if the voltage condition is not satisfied and a voltage equal to V r * R21 / (R21 + R22) if the voltage condition is satisfied.
  • the fourth transistor is connected by a terminal to ground and by another terminal to the output of the switching means via a fifth transistor, the control terminal of which is connected to the point common to said two resistors, the fifth transistor passing if the voltage condition is satisfied and blocked if the voltage condition is not satisfied, so that the point common to the fourth and fifth transistors sees a voltage substantially zero if the voltage condition is not satisfied and at less equal to the voltage V r if the voltage condition is satisfied.
  • the third and fourth transistors can be of the MOS type with their source grounded.
  • the fifth transistor can be of the MOS type with the source subjected to the voltage V r .
  • the means for controlling the first transistor further comprises a sixth transistor provided with a terminal connected to the point common to the fourth and fifth transistors, the other terminal and the control terminal being short-circuited and connected to the output.
  • switching means seeing the voltage V r by means of two resistors R27 and R28 in series, the sixth transistor being on if the voltage condition is not satisfied and blocked if the voltage condition is satisfied, the common point to said two resistors R27 and R28 seeing the voltage V r * R27 / (R27 + R28) if the voltage condition is not satisfied and the voltage V r if the voltage condition is satisfied.
  • a seventh transistor is provided with a control terminal connected to the point common to said two resistors R27 and R28, a terminal connected to the point common to the fourth and fifth transistors, and another terminal connected to the point common to the fourth and fifth transistors via a resistor R33, the other terminal of the seventh transistor also being connected to the control terminal of the first transistor of the switching means via a resistor R32, a resistor R31 connecting the terminal for controlling the first transistor and the input of the switching means seeing the variable voltage V v , so that the seventh transistor is on if the voltage condition is not satisfied, the control terminal of the first transistor being subjected to a voltage substantially equal to V v * R32 / (R31 + R32) able to turn it on, and that the seventh transistor is blocked if the voltage condition is satisfied, the terminal for controlling the first transistor being subjected to a voltage substantially equal to V v able to block it.
  • the sixth transistor can be of bipolar type with collector and base short-circuited.
  • the seventh transistor can be of the bipolar type with the collector connected to the point common to resistors R32 and R33.
  • a regulator can be implemented in technology HF5 CMOS for which the breakdown voltage is around 15 volts.
  • the general principle is to detect the voltage applied by compared to a threshold of 12.5 volts by means of a resistive bridge and a comparator and switch the control structure while maintaining a normal operation if the voltage is less than 12 volts and dividing the applied voltage if it is greater than 12 volts. So not only the regulator is protected against destruction in the event of voltage power too high, but still the regulator continues to operate satisfactorily at a voltage greater than the breakdown voltage.
  • the regulator is designed so that none of its components likely to banging around 15 volts is subject to such tension.
  • the invention also relates to a regulation method intended to supply a constant voltage for the supply of consumer elements from a variable voltage V v , method in which the variable voltage V v is compared to a reference voltage V ref , divide the variable voltage V v by a factor k 1 , and supply the regulating element with a voltage V r equal either by the variable voltage V v , or by the variable voltage divided V v / k 1 by switching between the two voltages, the switching being controlled as a function of the comparison so that the regulating element is supplied by the variable voltage V v if a voltage condition is not satisfied and by the divided variable voltage V v / k 1 if the voltage condition is satisfied, the variable voltage V v being capable of assuming values greater than those capable of supporting the active components of the device.
  • the invention applies to the automotive field, in particular for safety air bags. So we can make a regulator supporting a supply voltage higher than that allowed normally by the technology used, which presents many advantages in terms of choice of technology, reduction of the surface of silicon used and optimization. Indeed, in the case of an automobile, the regulator is normally powered from a battery of a alternator operating at 12 volts. However, in case of disconnection of the battery, the alternator output voltage may reach much higher values.
  • the vehicle's electrical network is also subject to radiation due to the high voltage used by engine spark plugs. As a result, a regulator mounted in an automobile must be capable of withstanding voltages up to 25 volts.
  • the regulating device comprises a regulating element 1 of conventional type, supplied by a direct voltage likely to vary between 5.1 and 12.5 volts and providing at the output a regulated voltage of 3.3 volts.
  • the regulatory system also includes a reference module 2 providing the element with regulates a reference voltage, allowing it to develop the voltage regulated.
  • the regulation device comprises a means for dividing 3 the supply voltage V v , the latter being between 5.1 and 25 volts.
  • the dividing means 3 divides the supply voltage by two.
  • the regulating device also comprises a switching means 4, one input of which is connected directly to the supply voltage V v of between 5.1 and 25 volts, another input is connected to the output of the dividing means 3 and sees a voltage V r between 5.1 and 12.5 volts, the output supplies the regulating element 1 and a control input receives a setpoint from a comparison means 5.
  • the comparison means 5 comprises an amplifier 6 mounted as a comparator, the negative terminal of which receives a reference voltage V ref from the reference module 2, the positive terminal of which receives a voltage V comp proportional to the supply voltage V v via two resistors 7 and 8 connected in series between the voltage supply between 5.1 and 25 volts and ground, the positive terminal of the amplifier 6 being connected to the common point between the two resistors 7 and 8.
  • the output of the amplifier 6 is connected to the control input of the switching means 4.
  • the switching means 4 supplies the regulating element 1 directly with the supply voltage V v . This is due to the fact that the supply voltage V v is less than 12.5 volts. If the supply voltage is greater than 12.5 volts, the amplifier 6 outputs an opposite setpoint. The switching means 4 then supplies the regulating element 1 from the divided voltage V r supplied by the dividing means 3. Thus, the regulating element 1 always sees as input a voltage less than or equal to 12.5 volts, while the regulator as a whole sees a supply voltage less than or equal to 25 volts.
  • the module 9 which groups the dividing means 3 and the switching means 4, is connected not only to the output of the amplifier 6 by which it receives a control signal denoted V + by l intermediary of the conductor 10. However, the module 9 also receives a reverse control signal V - which is obtained by means of an inverter 11 receiving the control signal V + as an input.
  • the comparison voltage V comp is supplied to the negative terminal of the amplifier 6 by the module 9, the resistors making it possible to obtain the comparison voltage V comp can also be integrated into the module 9.
  • the detail of the module 9 is illustrated in figure 3.
  • module 9 is divided into three parts having different functionalities and separated by mixed lines.
  • the dividing means 3 is formed by three resistors R12, R13 and R14 arranged in series between a line supplying the variable supply voltage V v between 5.1 and 25 volts and the ground line, it being understood that the mass can be floating, that is to say that the voltage V v is understood to be taken with respect to the mass.
  • V comp V v * R14 / (R12 + R13 + R14)
  • V d V v * (R13 + R14) / (R12 + R13 + R14).
  • ak 1 (R13 + R14) / (R12 + R13 + R14)
  • k 2 R14 / (R12 + R13 + R14).
  • the rest of the module 9 forms the switching means 4 and can be divided into a switching part 15 and a control part switching 16.
  • the switching part 15 comprises a first transistor T17 of the MOS type, the source of which is connected to the supply at the voltage V v , the drain of which is connected to the output of the module 9 which supplies the regulating element 1 of the Figure 1 a supply voltage V r less than or equal to 12.5 volts and the gate of which receives a control signal from the switching control part 16 which will be described later.
  • the switching part 15 also includes a second transistor T18 of the bipolar PNP type, the collector of which is connected to the supply line under the voltage V v , the base of which is connected to the point common to the resistors R12 and R13 and sees the voltage V d and the emitter of which is here connected to an additional bipolar transistor T19 forming a cascode circuit in order to be able to supply a high output current under the voltage V r . If the required output current is lower, the presence of the additional transistor T19 is not necessary.
  • the transistor T19 of NPN type, has its collector connected to the supply line under the voltage V v , its base connected to the emitter of the transistor T18 and its emitter connected to the output line of the voltage V r .
  • V r V d - V BET18 - V BET19 .
  • V v 25 volts
  • V d 14 volts
  • V r substantially equal to 12.5 volts.
  • the maximum voltage that these transistors see is equal to V v - V r and therefore does not exceed 12.5 volts.
  • the switching control part 16 is used to generate the control signal of the gate of the transistor T17 so that the said transistor T17 is blocked if the variable voltage V v is greater than 12.5 volts and is on in the other cases.
  • the switching control part receives the control signal V + and the reverse control signal V - from the comparison means 5 illustrated in FIG. 1.
  • the switching control part 16 comprises a MOS transistor T20 whose source is connected to ground, whose gate receives the control signal V + and whose drain is connected to the output line under the voltage V r by the intermediate of two resistors in series R21 and R22.
  • the switching control part 16 comprises a MOS transistor T23 of the same type as the previous one, the source of which is connected to ground, the gate of which receives the reverse control signal V - and the drain of which is connected to a point referenced 24.
  • a MOS transistor T25 has its drain connected to point 24, its source connected to the output line under voltage V r and its gate connected to the common point between resistors R21 and R22.
  • An NPN T26 bipolar transistor has its emitter connected to point 24 and its base and its collector short-circuited and connected to the output line under voltage V r via two resistors R27 and R28.
  • An NPN-type bipolar transistor T29 has its emitter connected to point 24, its base connected to the common point between resistors R27 and R28 and its collector connected to a point referenced 30.
  • Three resistors in series, R31, R32 and R33 are arranged between the input line under the variable voltage V v and point 24.
  • Point 30 is the common point between resistors R32 and R33.
  • the transistor T29 is able to short-circuit the resistor R33 when it is on.
  • the common point between the resistors R31 and R32 is connected to the gate of the transistor T17 of the switching part 15 and therefore supplies it with the control signal.
  • the operation of the switching control part 16 is as follows. If the voltage V v is greater than 12.5 volts, the transistor T20 receives a positive control signal V + which turns it on, while the transistor T23 receives a reverse control signal V - zero which blocks it.
  • the voltage at point 24 is therefore equal to the supply voltage V r to which is added the almost zero voltage between the drain and the source of transistor T25.
  • the voltage between the base and the emitter of transistor T26 is zero.
  • the transistor T26 is blocked. The same is true for transistor T29.
  • the operation is as follows.
  • the transistor T20 receives on its gate a zero V + control signal which blocks it, while the transistor T23 receives on its gate a reverse V - positive control signal which turns it on.
  • the voltage at point 24 is therefore substantially zero.
  • the transistor T25 has its gate and its source substantially at the same potential and is therefore blocked.
  • the transistor T26 is turned on by the current flowing from the output line at the voltage V r by the resistors R28 and R27. Due to its mounting, the transistor T26 behaves like a diode. It is therefore conducting as soon as the voltage V r becomes greater than 0.7 volts.
  • resistors R27 and R28 identical values equal to 100 kOhms.
  • the base of transistor T29 is subjected to a voltage substantially equal to 0.7 volts to which is added half of the difference between the voltage V r and 0.7 volts. In other words, the transistor T29 turns on as soon as the voltage V r exceeds 0.7 volts. The transistor T29 thus short-circuits the resistor R33. The voltage at point 30 is therefore close to zero.
  • the transistor T17 then short-circuits the bipolar transistors T18 and T19 which block.
  • the regulating device operates by dividing the supply voltage, which guarantees the safety of the regulating element 1 .
  • the regulating device receives at start-up a voltage V v equal to 10 volts
  • the base of the transistor T18 is subjected to a voltage of the order of 5.6 volts.
  • V r 4.2 volts approximately on the output line, causing the polarization of the transistors T20, T23, T25, T26, T29 and the emission of 'A control signal on the gate of transistor T17 able to turn it on and short-circuit the transistors T18 and T19, so that the voltage V r reaches the value of 10 volts.
  • the various transistors are not subjected to voltages greater than 15 volts.
  • the transistor T20 is mounted between V r and the ground and is subjected to a maximum of 12.5 volts.
  • the transistor T23 mounted between point 24 and ground can be subjected to a voltage very slightly higher than 12.5 volts but in any case limited by the fact that the resistance R33 is of high value and will therefore tend to limit the current passing through the transistor T25 when it is on.
  • the transistor T25 when it is blocked is subjected to the voltage V r .
  • the transistor T26 when it is blocked is also subjected to the voltage V r .
  • the transistor T29 when it is off is subjected to the voltage across the terminals of the resistor R33, which always remains less than the voltage difference between V v and V r and therefore at 12.5 volts.
  • the switching control means 16 is supplied, in general, by the voltage V r limited to 12.5 volts maximum, while being able to control the gate of the transistor T17 at a voltage between 12.5 and 25 volts.
  • a voltage regulator can be produced by integrated technology, for example HF5 CMOS, Bi-CMOS not supporting not high voltages, while the regulator will be able to withstand significantly higher tensions, for example double.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
EP00403691A 1999-12-29 2000-12-28 Steuervorrichtung Expired - Lifetime EP1113352B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9916674 1999-12-29
FR9916674A FR2803400B1 (fr) 1999-12-29 1999-12-29 Dispositif de regulation

Publications (2)

Publication Number Publication Date
EP1113352A1 true EP1113352A1 (de) 2001-07-04
EP1113352B1 EP1113352B1 (de) 2010-02-17

Family

ID=9553986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00403691A Expired - Lifetime EP1113352B1 (de) 1999-12-29 2000-12-28 Steuervorrichtung

Country Status (4)

Country Link
US (1) US6433526B2 (de)
EP (1) EP1113352B1 (de)
DE (1) DE60043839D1 (de)
FR (1) FR2803400B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106030435A (zh) * 2014-02-28 2016-10-12 德州仪器公司 用于调节电压的方法及电路

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10056293A1 (de) * 2000-11-14 2002-06-06 Infineon Technologies Ag Schaltungsanordnung zur Erzeugung einer steuerbaren Ausgangsspannung
CN100412753C (zh) * 2004-11-20 2008-08-20 鸿富锦精密工业（深圳）有限公司 主机板芯片组工作电压产生电路
US11921531B2 (en) 2020-12-17 2024-03-05 Hamilton Sundstrand Corporation Zener diode power path control for extended operation range of linear power supplies

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899098A (en) * 1987-06-25 1990-02-06 Sgs-Thomson Microelectronics S.P.A. Low voltage drop series regulator with overvoltage and overcurrent protection
US5047751A (en) * 1989-02-03 1991-09-10 Nec Corporation Power supply voltage monitoring circuit
DE4337229C1 (de) * 1993-10-30 1994-11-10 Ant Nachrichtentech Fernspeiseeinrichtung
EP0756222A2 (de) * 1995-07-25 1997-01-29 Thomson Consumer Electronics, Inc. Klemmschaltung für ferngetastete Spannung
DE19739246A1 (de) * 1997-09-08 1999-03-11 Siemens Ag Schaltungsanordnung und Verfahren zum Überlastschutz für ein Schaltelement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4580090A (en) * 1983-09-16 1986-04-01 Motorola, Inc. Maximum power tracker
DE3341345C2 (de) * 1983-11-15 1987-01-02 SGS-ATES Deutschland Halbleiter-Bauelemente GmbH, 8018 Grafing Längsspannungsregler
US5570004A (en) * 1994-01-03 1996-10-29 Seiko Instruments Inc. Supply voltage regulator and an electronic apparatus
US5686821A (en) * 1996-05-09 1997-11-11 Analog Devices, Inc. Stable low dropout voltage regulator controller
US6262567B1 (en) * 1997-08-01 2001-07-17 Lsi Logic Corporation Automatic power supply sensing with on-chip regulation
US5955870A (en) * 1997-09-29 1999-09-21 Intel Corporation Multi-mode low power voltage regulator
US6218821B1 (en) * 1999-07-30 2001-04-17 Emc Corporation Computer storage system incorporating marginable power supply and power-up bypass circuit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4899098A (en) * 1987-06-25 1990-02-06 Sgs-Thomson Microelectronics S.P.A. Low voltage drop series regulator with overvoltage and overcurrent protection
US5047751A (en) * 1989-02-03 1991-09-10 Nec Corporation Power supply voltage monitoring circuit
DE4337229C1 (de) * 1993-10-30 1994-11-10 Ant Nachrichtentech Fernspeiseeinrichtung
EP0756222A2 (de) * 1995-07-25 1997-01-29 Thomson Consumer Electronics, Inc. Klemmschaltung für ferngetastete Spannung
DE19739246A1 (de) * 1997-09-08 1999-03-11 Siemens Ag Schaltungsanordnung und Verfahren zum Überlastschutz für ein Schaltelement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106030435A (zh) * 2014-02-28 2016-10-12 德州仪器公司 用于调节电压的方法及电路

Also Published As

Publication number Publication date
FR2803400B1 (fr) 2003-01-10
EP1113352B1 (de) 2010-02-17
US6433526B2 (en) 2002-08-13
US20010030531A1 (en) 2001-10-18
FR2803400A1 (fr) 2001-07-06
DE60043839D1 (de) 2010-04-01

Similar Documents

Publication Publication Date Title
EP0408436B1 (de) Detektionsschaltung für ein Drehstromgenerator-Überwachungssignal eines Reglers zum Laden der Batterie eines Kraftfahrzeuges und seine Verwendung
EP2280414B1 (de) Elektronische Vorrichtung zum Schutz gegen Sperrspannung und ihre Anwendung im Automobilbereich
FR2845328A1 (fr) Lampe de vehicule a mode de fonctionnement multiple
FR2675644A1 (fr) Circuit electrique bi-tension a signalisation de defaut perfectionnee, notamment pour vehicule automobile.
WO2018091830A1 (fr) Dispositif de protection d'un calculateur électronique contre un court-circuit
EP0530061B1 (de) Schaltung zur Regelung der Ladespannung einer mittels eines Generators gespeisten Batterie
EP1113352B1 (de) Steuervorrichtung
EP0505234B1 (de) Schaltkreis zur Erkennung eines Schalterzustandes, namentlich eines Zündschlüssels in einem Spannungsregler eines Wechselstromgenerators
EP0307325A1 (de) Steuerungskreis für eine Zündung
EP0726633B1 (de) Spannungsregler zum Laden einer Batterie mittels eines Wechselstromgenerators mit Initialzündung, insbesondere für Kraftfahrzeug
FR2911732A1 (fr) Dispositif d'elevation temporaire de tension electrique pour organe automobile
EP0738037B1 (de) Erregerschaltkreis für einen Wechselstromgenerator, insbesondere für Kraftfahrzeuge und Regler mit einem solchen Wechselstromgenerator
FR2790341A1 (fr) Alternateur equipe de moyens perfectionnes de protection contre le delestage de charges, et dispositif regulateur associe
FR2535539A1 (fr) Montage de protection pour signaux analogiques et/ou numeriques
EP0164770B1 (de) Statisches Relais für niedrige Gleichstromspannung
FR3094853A1 (fr) Circuit de commande de transistors
EP0700142B1 (de) Schaltung für die Ermittlung des Schliessens eines Zündschlüssels für die Steuerung eines Ladereglers zur Ladung einer Batterie mittels eines Wechselstromgenerators, wobei die Schaltung eines Fehlerstromshuntanordnung aufweist
FR2490890A1 (fr) Installation pour le chargement de batteries d'accumulateurs
FR2460087A1 (fr) Dispositif pour detecter un defaut de lampe
FR2712747A1 (fr) Dispositif d'alimentation d'une charge résistive à partir d'une batterie de stockage d'énergie d'un véhicule.
WO2016124334A1 (fr) Circuit electronique de commande d'un demi-pont en h
FR2516317A1 (fr) Dispositif de protection du transistor de commande d'un moteur electrique, ensemble constitue par un tel dispositif et son moteur associe et utilisation dans un vehicule automobile
FR3079088A1 (fr) Dispositif electronique de commande electrique d'une charge inductive.
WO2023280727A1 (fr) Module de détection de coupure de tension d'une batterie de véhicule automobile
FR2605815A1 (fr) Alternateur auto-excite en regime de surexcitation

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: STMICROELECTRONICS S.A.

17P Request for examination filed

Effective date: 20011213

AKX Designation fees paid

Free format text: DE FR GB IT

17Q First examination report despatched

Effective date: 20020419

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 60043839

Country of ref document: DE

Date of ref document: 20100401

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20101118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100217

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20101201

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20101208

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20120119

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20121228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130830

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60043839

Country of ref document: DE

Effective date: 20130702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130702

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130102

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121228