WO2020008732A1 - Circuit d'alimentation électrique d'amplification - Google Patents

Circuit d'alimentation électrique d'amplification Download PDF

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Publication number
WO2020008732A1
WO2020008732A1 PCT/JP2019/019300 JP2019019300W WO2020008732A1 WO 2020008732 A1 WO2020008732 A1 WO 2020008732A1 JP 2019019300 W JP2019019300 W JP 2019019300W WO 2020008732 A1 WO2020008732 A1 WO 2020008732A1
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WIPO (PCT)
Prior art keywords
power supply
voltage
current
lithium ion
ion battery
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Application number
PCT/JP2019/019300
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English (en)
Japanese (ja)
Inventor
山中　豊
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株式会社デンソー
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Filing date
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Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Publication of WO2020008732A1 publication Critical patent/WO2020008732A1/fr

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • 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

Definitions

  • the present disclosure relates to a boost power supply circuit.
  • ECUSome ECUs mounted on vehicles can supply power so that emergency communication can be ensured even when the power supply from the battery is cut off or the power supply voltage is reduced.
  • the voltage on the primary side is usually about 3.6 V. Is provided.
  • the booster circuit is provided as described above, in order to prevent the output on the secondary side from returning to the primary side, a configuration is employed in which backflow is prevented by a diode or a synchronous rectifying element.
  • An object of the present disclosure is to provide a step-up power supply circuit capable of efficiently performing synchronous rectification while minimizing generation of a reverse current from a secondary side to a primary-side lithium-ion battery.
  • a boost power supply circuit is a boost power supply circuit that supplies power to a load using a lithium-ion battery as a power supply when power supply from a DC power supply is stopped, and controls a predetermined output voltage of the lithium-ion battery.
  • a boosting coil for boosting the voltage to a level, a first switching element for energizing the boosting coil, a diode for output and a second switching element connected in parallel to the diode,
  • a current detection circuit for detecting a power supply current; turning on the first switching element to supply current from the lithium ion battery to the boosting coil; and outputting a boosted output via the diode or the second switching element.
  • a control circuit wherein the control circuit controls a value of the primary current detected by the current detection circuit to a predetermined level. It said supplying power to the load side by turning on the second switching element when the above.
  • the control circuit turns on the second switching element to supply power to the load side when the value of the primary current detected by the current detection circuit is equal to or higher than a predetermined level.
  • the primary side current is equal to or higher than the predetermined level, it is possible to determine that the secondary side consumes a large amount of load current. Therefore, no reverse current is generated, so that the second switching element is turned on.
  • power can be supplied by synchronous rectification.
  • the control circuit can autonomously perform the switching operation between the synchronous rectification operation and the diode rectification operation in accordance with the primary current, so that the reverse current to the lithium ion battery is suppressed, An efficient boosting operation by synchronous rectification can be performed.
  • FIG. 1 is an electrical configuration diagram showing a first embodiment
  • FIG. 2 is a time chart
  • FIG. 3 is an electrical configuration diagram showing a second embodiment
  • FIG. 4 is an electrical configuration diagram showing a third embodiment
  • FIG. 5 is an electrical configuration diagram showing a fourth embodiment
  • FIG. 6 is an electrical configuration diagram showing a fifth embodiment
  • FIG. 7 is an electrical configuration diagram showing a sixth embodiment
  • FIG. 8 is an operation explanatory diagram based on the control pattern.
  • FIG. 9 is an electrical configuration diagram 1 showing a modification.
  • FIG. 10 is an electrical configuration diagram 2 showing a modification.
  • FIG. 1 showing the electrical configuration, the output of a secondary-side capacitor 5 from a battery 1 through a diode 2, a step-down DCDC conversion circuit 3, and a P-channel MOSFET 4 in series for various loads mounted on a vehicle. Power is supplied to the terminal as an output voltage Vout. Since the battery 1 is normally a DC voltage VB of 12 V, the battery 1 is stepped down by a step-down DCDC conversion circuit 3 to supply a predetermined secondary side voltage Vout.
  • the boost power supply circuit 10 boosts the DC voltage Vbu, which is the primary voltage of the lithium-ion battery 11 that is the backup power supply, and supplies the DC voltage Vbu to the output terminal as the secondary voltage Vout.
  • the step-up power supply circuit 10 operates when power supply from the battery 1 is stopped to generate the secondary side voltage Vout, and communication connected as a load enables communication in an emergency such as the module 6. It is provided as follows.
  • the boosting power supply circuit 10 includes P-channel MOSFETs 12 and 13, a capacitor 14, a boosting coil 15, an N-channel MOSFET 16 for boosting, a current detection resistor 17, and a P-channel MOSFET 18 for synchronous rectification as a boosting circuit configuration. Prepare. Further, a control unit 20 for controlling each unit of the booster circuit configuration is provided.
  • the MOSFETs 12 and 13 are configured as cut switches that cut off bidirectional conduction, and function as third switching elements.
  • the MOSFETs 12 and 13 include body diodes 12a and 13a, respectively.
  • MOSFET 16 functions as a first switching element
  • MOSFET 18 functions as a second switching element. Since the MOSFET 18 has the parasitic diode 18a, it functions as a diode connected in parallel.
  • the sources of the MOSFETs 12 and 13 are connected in common, the drain of the MOSFET 12 is connected to the positive terminal of the lithium ion battery 11 via the terminal A, the drain of the MOSFET 13 is connected to the ground via the capacitor 14, and It is connected to one terminal of the coil 15.
  • the other terminal of the booster coil 15 is connected to the ground between the drain and source of the MOSFET 16 and the current detection resistor 17 in series.
  • the other terminal of the booster coil 15 is connected to the output terminal of the capacitor 5 from the drain-source of the MOSFET 18 via the terminal B.
  • the control unit 20 is provided integrally as an IC (semiconductor integrated circuit).
  • the boost control circuit 21 takes in the secondary voltage Vout of the terminal B and controls the driving of the MOSFETs 16 and 18.
  • the boost control circuit 21 detects the voltage of the power supply path so as to monitor the DC voltage VB of the battery 1. For example, when the DC voltage VB to the step-down DCDC conversion circuit 3 becomes lower than a predetermined level, the boost operation is performed. Is configured to start.
  • the output terminal of the boost control circuit 21 is connected to the gate of the MOSFET 16 via the drive circuit 22 and to the gate of the MOSFET 18 via the drive circuit 23.
  • the drive circuit 22 outputs a drive signal S1 according to a signal from the boost control circuit 21.
  • the drive circuit 23 always outputs a high-level signal.
  • the drive circuit 23 outputs a drive signal S2 according to the signal from the boost control circuit 21.
  • the MOSFET 16 turns on when the drive signal S1 is at a high level.
  • the MOSFET 18 is turned on when the drive signal S2 is at a low level.
  • the control circuit 24 controls the operation state of the drive circuit 23 based on the current detection signal Sx from the current detection circuit 25.
  • the current detection circuit 25 includes a comparator 26 with hysteresis.
  • the current detection circuit 25 takes in the primary current Id flowing through the current detection resistor 17 as a terminal voltage Vd, compares it with a reference voltage Vref1, and when the current exceeds a reference voltage Vref1, the current detection signal Sx Is output to the control circuit 24.
  • the reference voltage Vref1 is set by the level of the primary current Id in order to prevent the current from flowing from the secondary side to the primary side. Specifically, the reference voltage Vref1 is set so that the terminal voltage Vd corresponding to the primary current Id at a level that can prevent the backflow to the primary side can be determined.
  • the secondary terminal voltage Vout is supplied from the battery 1 to the output terminal.
  • the DC voltage VB of the battery 1 is input to the step-down DCDC conversion circuit 3 via the diode 2.
  • the DC voltage VB is stepped down to a predetermined voltage, for example, 5 V, and supplied as the secondary voltage Vout via the MOSFET 4.
  • a predetermined voltage for example, 5 V
  • FIG. 2 shows a state in which the consumption of the secondary current Iout is small in the above state, as shown in FIG.
  • the boosting power supply circuit 10 starts operating to maintain the secondary voltage Vout at a constant voltage.
  • the boosting control circuit 21 in the control unit 20 increases the boosting voltage when the detected voltage of the DC voltage VB of the battery 1 rapidly decreases from time t0 and falls below a predetermined level at time t1. Start the operation. Thereby, the control unit 20 turns on the MOSFETs 12 and 13 of the cut switches to charge the capacitor 14 from the lithium ion battery 11 as shown in FIG. 2B.
  • the decrease in the DC voltage VB of the battery 1 occurs when there is a fluctuation such as a sudden increase in the secondary current Iout.
  • the boosting power supply circuit 10 starts operating. Become. Note that, unlike the disconnection state of the battery 1, when the boosting power supply circuit 10 is started with the increase in the secondary current Iout, the DC voltage VB of the battery 1 may return to a normal level after the startup, and the step-down DCDC conversion circuit 3 Operates to supply the secondary side voltage Vout, it is necessary to prevent the generation of a reverse current to the primary side of the booster power supply circuit 10.
  • the drive signal S1 is output to the drive circuit 22 at time t2 to turn on the MOSFET 16 as shown in FIG.
  • the secondary side current Iout hardly flows, so the secondary side voltage Vout also hardly decreases, and the ON period of the MOSFET 16 is a short period until time t3. is there.
  • the boost control circuit 21 holds the drive signal S2 at a high level and turns off the MOSFET 18. Keep in state. As a result, a current flows between the anode and the cathode of the parasitic diode 18a due to the voltage generated in the booster coil 15, and the capacitor 5 is charged. As shown in FIG. 2F, the secondary voltage Vout is held. It becomes.
  • control unit 20 performs the control operation again in the same manner as described above, turns on the MOSFET 16 for a short period of time, and then outputs the secondary voltage Vout via the parasitic diode 18a. Repeat the operation.
  • the drive signal S1 to the MOSFET 16 by the boost control circuit 21 is a signal whose duty is increased.
  • the control circuit outputs the high-level current detection signal Sx. 24.
  • the drive circuit 23 receives the synchronous rectification switching signal from the control circuit 24 and outputs the drive signal S2 to the gate of the MOSFET 18 according to the signal from the boost control circuit 21.
  • the boost control circuit 21 outputs a drive signal S1 for turning off the MOSFET 16 and at the same time outputs a drive signal S2 for turning on the MOSFET 18.
  • the MOSFET 18 When the MOSFET 18 is turned on, the induced voltage generated in the booster coil 15 is output as the secondary voltage Vout through the MOSFET 18.
  • the MOSFET 18 When the MOSFET 18 is turned on, synchronous rectification operation is performed instead of diode rectification.
  • the same control is performed during the period when the secondary current Iout flows at the intermediate level, and the synchronous rectification operation by the MOSFET 18 is performed.
  • the boost operation can be efficiently performed by the synchronous rectification.
  • the drive signal S1 to the MOSFET 16 by the boost control circuit 21 is a signal with a large duty.
  • control unit 10 increases the primary current Id and outputs the current detection signal Sx from the current detection circuit 25 as in the case where the secondary current Iout is at the intermediate level.
  • the boost control circuit 21 performs the same control by performing the synchronous rectification operation at time t9 by turning on the MOSFET 18 when the MOSFET 16 is off.
  • the boosting control circuit 21 in the control unit 20 causes the booster control circuit 21 to change the DC voltage VB of the battery 1 at the time t10, as shown in FIG.
  • the detection voltage reaches a predetermined level, the boosting operation is stopped.
  • the control unit 20 turns off the MOSFETs 12 and 13 of the cut switch to shut off the lithium ion battery 11.
  • the current detection resistor 17 for detecting the primary current Id and the current detection circuit 25 are provided.
  • the detection voltage Vd corresponding to the primary current Id is equal to or lower than the reference voltage Vref1
  • the diode rectification operation is performed by the parasitic diode 18a. I did it.
  • an efficient boosting operation can be performed autonomously by the synchronous rectification operation.
  • the secondary current Iout is small, the current flows back to the primary side by diode rectification. Can be prevented and a decrease in operation efficiency can be suppressed.
  • the current flows backward from the secondary side to the primary side during operation of the boosting power supply circuit 10 and the lithium ion battery 11 is efficiently operated without causing a failure. It is possible to perform a simple boosting operation.
  • FIG. 3 shows a second embodiment.
  • This embodiment is different from the first embodiment in that a control unit 30 including an IC is provided instead of the control unit 20. That is, in FIG. 3, the control unit 30 is configured such that the MOSFETs 16 and 18, the parasitic diode 18a, and the current detection resistor 17 are also integrally formed inside the IC.
  • the same operation and effect as those of the first embodiment can be obtained, and the whole can be made compact by using the control unit 30, so that the space can be saved. Will be able to do it.
  • FIG. 4 shows a third embodiment. Hereinafter, portions different from the first embodiment will be described.
  • an N-channel MOSFET 19 is provided instead of the N-channel MOSFET 16
  • a control unit 40 is provided instead of the control unit 20.
  • the MOSFET 19 has a built-in sense MOS 19a for current detection configured to allow a drain current to flow at a predetermined sense ratio.
  • the sense MOS 19a is used in a state where the drain and the gate are commonly connected to the MOSFET 19.
  • the source of the sense MOS 19a is connected to the current detection circuit 25 of the control unit 40, and is also connected to ground via a resistor 27 provided inside the control unit 40.
  • the sense current Id flows through the sense MOS 19a at a predetermined sense ratio with respect to the drain current flowing through the MOSFET 19, the sense current Id flows through the resistor 27 of the control unit 40, and the terminal voltage Vd is changed to the primary current Id.
  • the same operation and effect as those of the first embodiment can be obtained, and by using the MOSFET 19 having the built-in sense MOS 19a, the loss due to the current detection resistor can be eliminated, and the efficiency can be improved.
  • the boosting operation can be performed well.
  • FIG. 5 shows a fourth embodiment.
  • This embodiment is different from the first embodiment in that a control unit 50 including an IC is provided instead of the control unit 40. That is, in FIG. 5, the control unit 50 is configured such that the MOSFET 18, the parasitic diode 18a, the MOSFET 19, and the sense MOS 19a are integrally formed inside the IC.
  • the same operation and effect as those of the third embodiment can be obtained, and the whole can be made compact by using the control unit 50, so that the space can be saved. Will be able to do it.
  • FIG. 6 shows a fifth embodiment.
  • a configuration for detecting the current IS flowing through the communication module 6 among the secondary-side currents Iout is employed instead of the configuration for detecting the primary-side current Id.
  • a control unit 60 is provided instead of the control unit 20.
  • the current detection resistor 17 for detecting the primary current Id is not provided, and the source of the MOSFET 16 is directly connected to the ground.
  • a current detection resistor 61 is provided in a current supply path to the communication module 6. Both terminals of the current detection resistor 61 are connected to a voltage monitor 62a of a current detection circuit 62 provided in the control unit 60, and input as voltage signals VSP and VSM, respectively.
  • the voltage monitor 62a detects a difference voltage between the voltage signals VSP and VSM, and inputs the detected voltage to the control circuit 24 as a current detection signal SI.
  • the control circuit 24 monitors the current IS flowing through the communication module 6 based on the current detection signal SI.
  • the control circuit 24 activates the drive circuit 23 when the level of the current IS exceeds a predetermined level set so that the backflow to the primary side does not occur even when the synchronous rectification operation is performed, thereby enabling the first embodiment.
  • the synchronous rectification operation is performed in the same manner as described above.
  • the same effects as those of the first embodiment can be obtained by the fifth embodiment.
  • FIGSixth embodiment 7 to 10 show a sixth embodiment.
  • a configuration is adopted in which a control unit 70 is provided instead of the control unit 20, and the reference voltage Vref1 for switching to the synchronous rectification operation is changed to a different reference voltage Vref2 according to the voltage of the lithium ion battery 11. ing.
  • the control unit 70 includes a comparator 71 as a voltage detection circuit, and inputs a voltage VA at a common connection point of the MOSFETs 12 and 13 as a primary side voltage.
  • the voltage VA is the DC voltage Vbu of the lithium ion battery 11 obtained via the MOSFET 12.
  • the comparator 71 When the MOSFET 12 is in the ON state, the voltage VA can be detected substantially as the DC voltage Vbu of the lithium ion battery 11.
  • the comparator 71 outputs a detection signal to the control circuit 24a.
  • the control unit 70 includes a current detection circuit 25a instead of the current detection circuit 25.
  • the current detection circuit 25a is provided to be switchable to a reference voltage Vref2 ( ⁇ Vref1) of a voltage lower than the reference voltage Vref1 of the comparator 26.
  • Vref2 a reference voltage of a voltage lower than the reference voltage Vref1 of the comparator 26.
  • Each of the reference voltages Vref1 and Vref2 is switched and set by switches 27 and 28, respectively. On / off switching control of the switches 27 and 28 is performed by switching signals Ss1 and Ss2 from the control circuit 21a.
  • the magnitude of the DC voltage Vbu which is the primary side voltage
  • the primary-side current changes with respect to the secondary-side current, so that control corresponding to this can be finely performed.
  • the reference voltage Vref1 set in the current detection circuit 25a is switched according to the detection voltage VA corresponding to the DC voltage Vbu of the lithium ion battery 11.
  • the comparator 71 determines whether or not the detection voltage VA as the primary voltage is equal to or higher than the reference voltage Vref3, and outputs a detection signal to the control circuit 24a.
  • the control circuit 24a turns on the switch 28 by the switching signal Ss2, and sets the reference voltage Vref2. Since the reference voltage Vref2 is lower than the reference voltage Vref1, even if the primary current Id is small and the detection voltage Vd is lower than the reference voltage Vref1, if the reference voltage Vref2 or higher, the drive circuit 23 is enabled and synchronous rectification is performed. Perform the operation.
  • the synchronous rectification operation can be performed when the secondary current Iout is medium. become able to. Note that even under the same conditions, in the case of a configuration in which the reference voltage is switched only by Vref1, the diode rectification operation is performed.
  • the primary voltage VA in order to improve the efficiency in this regard, by detecting the primary voltage VA, it is possible to switch to the low reference voltage Vref2 when the detected voltage VA is high. As a result, even when the primary voltage VA is high, it is possible to shift to synchronous rectification with the same load current as compared with the case where the primary voltage VA is low.
  • the detection of the primary side voltage Vbu is detected as the detection voltage VA at the common connection point of the MOSFETs 12 and 13, but the detection is performed at a different portion as shown in FIGS. You can also.
  • the voltage of the primary side voltage Vbu is directly input to the non-inverting input terminal of the comparator 71 as the detection voltage VB.
  • the detection since the detection is performed without passing through the MOSFETs 12 and 13 serving as the cut switches, the detection can be performed with a small error.
  • the configuration is such that the voltage of the primary side voltage Vbu is inputted to the non-inverting input terminal of the comparator 71 as the detection voltage VC via the MOSFETs 12 and 13 of the cut switch.
  • the voltage is detected as a slightly lower voltage because the voltage is passed through the MOSFETs 12 and 13 serving as cut switches, but the voltage is not detected when the MOSFETs 12 and 13 are off.
  • the boost power supply circuit 10 is operated in order to secure the operation power of the communication module 6 as a load when the power supply by the battery 1 is stopped or the voltage is reduced due to cranking or the like.
  • the present invention can also be applied to a case where a load other than the communication module 6 is driven.
  • the parasitic diode 18a of the MOSFET 18 is configured to function as a diode.
  • a diode can be separately connected in parallel with the MOSFET.
  • switching elements other than MOSFETs can be used.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Dc-Dc Converters (AREA)

Abstract

La présente invention porte sur un circuit d'alimentation électrique d'amplification qui alimente une charge en énergie, à l'aide d'une batterie au lithium-ion (11) en tant que source de puissance, ladite batterie au lithium-ion servant d'alimentation électrique de secours en cas de coupure de l'alimentation électrique d'une alimentation électrique CC (1). Le circuit d'alimentation électrique d'amplification comprend : une bobine d'amplification (15) servant à amplifier la tension de sortie de la batterie au lithium-ion à un niveau prescrit; des premiers éléments de commutation (16, 19) servant à alimenter la bobine d'amplification en énergie; une diode de sortie (18a) et un second élément de commutation (18) en connexion parallèle; des circuits de détection de courant (17, 19a, 25, 25a, 61, 62) qui détectent l'alimentation en courant provenant des batteries au lithium-ion; et des unités de commande (20, 30, 40, 50, 60, 70) qui mettent sous tension les premiers éléments de commutation, alimentent en énergie la bobine d'amplification à partir de la batterie au lithium-ion, et délivrent des sorties d'amplification par l'intermédiaire de la diode ou du second élément de commutation. Les unités de commande mettent sous tension le second élément de commutation et fournissent de l'énergie au côté charge quand la valeur de courant détectée par les circuits de détection de courant atteint au moins un niveau prescrit.
PCT/JP2019/019300 2018-07-02 2019-05-15 Circuit d'alimentation électrique d'amplification WO2020008732A1 (fr)

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JP2018-126019 2018-07-02
JP2018126019A JP2020005481A (ja) 2018-07-02 2018-07-02 昇圧電源回路

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022145270A1 (fr) * 2020-12-28 2022-07-07 パナソニックＩｐマネジメント株式会社 Circuit de commande de dispositif de stockage d'électricité et système d'alimentation électrique de secours utilisant celui-ci

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021235444A1 (fr) 2020-05-20 2021-11-25 パナソニックＩｐマネジメント株式会社 Système d'alimentation électrique de secours et corps mobile

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005160224A (ja) * 2003-11-26 2005-06-16 Toshiba Tec Corp 電力変換装置
JP2010022077A (ja) * 2008-07-08 2010-01-28 Panasonic Corp 電源装置
JP2010206858A (ja) * 2009-02-27 2010-09-16 Tdk Corp スイッチング電源装置
WO2014091677A1 (fr) * 2012-12-11 2014-06-19 株式会社デンソー Dispositif de notification d'urgence de véhicule
JP2015168336A (ja) * 2014-03-07 2015-09-28 株式会社デンソー 制御装置、および、これを用いた電動パワーステアリング装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005160224A (ja) * 2003-11-26 2005-06-16 Toshiba Tec Corp 電力変換装置
JP2010022077A (ja) * 2008-07-08 2010-01-28 Panasonic Corp 電源装置
JP2010206858A (ja) * 2009-02-27 2010-09-16 Tdk Corp スイッチング電源装置
WO2014091677A1 (fr) * 2012-12-11 2014-06-19 株式会社デンソー Dispositif de notification d'urgence de véhicule
JP2015168336A (ja) * 2014-03-07 2015-09-28 株式会社デンソー 制御装置、および、これを用いた電動パワーステアリング装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022145270A1 (fr) * 2020-12-28 2022-07-07 パナソニックＩｐマネジメント株式会社 Circuit de commande de dispositif de stockage d'électricité et système d'alimentation électrique de secours utilisant celui-ci

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