WO2021084691A1 - Circuit de suppression de courant d'appel pour climatiseur à alimentation en courant continu - Google Patents

Circuit de suppression de courant d'appel pour climatiseur à alimentation en courant continu Download PDF

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Publication number
WO2021084691A1
WO2021084691A1 PCT/JP2019/042813 JP2019042813W WO2021084691A1 WO 2021084691 A1 WO2021084691 A1 WO 2021084691A1 JP 2019042813 W JP2019042813 W JP 2019042813W WO 2021084691 A1 WO2021084691 A1 WO 2021084691A1
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WIPO (PCT)
Prior art keywords
power supply
inrush current
diode
electrolytic capacitor
air conditioner
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PCT/JP2019/042813
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English (en)
Japanese (ja)
Inventor
洸太郎 白石
彰久 前北
昌史 岡
孝義 久保
Original Assignee
三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201980098767.3A priority Critical patent/CN114586254A/zh
Priority to JP2021553990A priority patent/JP7154439B2/ja
Priority to PCT/JP2019/042813 priority patent/WO2021084691A1/fr
Publication of WO2021084691A1 publication Critical patent/WO2021084691A1/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
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks

Definitions

  • the present invention relates to an inrush current suppression circuit of a DC power supply compatible air conditioner to which a DC voltage is supplied.
  • DC power supply DC voltage is supplied from the power supply to each load instead of AC voltage.
  • the configuration from the power supply side to the load side of the current data center, etc. is as follows: The voltage distributed by alternating current is converted from alternating current to direct current on the power supply side. At this time, a battery, photovoltaic power generation, or the like is connected to the direct current system. After that, 2. The converted direct current is reconverted into alternating current and supplied to each load of an air conditioner or the like. The alternating current from the power supply is supplied to the air conditioner. The air conditioner is 3. Converts the supplied alternating current to direct current. The converted direct current is 4. It is reconverted from direct current to alternating current to drive a motor such as a compressor.
  • an air conditioner energy for continuing to supply electric power to a load such as a compressor of the air conditioner or a motor for a fan must be stored in the air conditioner during a momentary power failure. Therefore, it is necessary to install an electrolytic capacitor having a capacity required for continuous operation time between the positive electrode (P) and the negative electrode (N) of the DC circuit in the air conditioner.
  • an inrush current prevention resistor is arranged in series with the electrolytic capacitor. Then, connect the switch in parallel with the inrush current prevention resistor.
  • a configuration is disclosed in which a switch is turned ON / OFF by comparing with a holding value in a control unit in an apparatus when a voltage across an electrolytic capacitor reaches a certain value.
  • the inrush current suppression circuit since the voltage across the electrolytic capacitor is compared with the voltage value held by the control unit in the device, the response to a sudden change in the power supply voltage may be delayed, and if it is delayed, it may be delayed. Excessive inrush current flows.
  • the size of the inrush current prevention resistor and electrolytic capacitor is large and the capacity is large, making it difficult to place in an air conditioner with limited space. There's a problem.
  • the present invention has been made in view of the above circumstances, and switches the circuit configuration when a phenomenon in which the power supply voltage becomes unstable, such as repeating an increase and decrease between the rated voltage and the operation guaranteed minimum voltage, occurs. It is an object of the present invention to provide an inrush current suppression circuit for an air conditioner compatible with DC power supply, which can suppress an inrush current and save space.
  • one end is connected to the first diode connected to the positive electrode (P) of the DC power supply, and one end is connected to the other end of the first diode.
  • a first unit comprising a resistor and a first electrolytic capacitor having one end connected between the other end of the resistor and the load and the other end connected to the negative electrode (N) of the DC power supply.
  • a plurality of the first units are provided between the DC power supply and the load, and the plurality of first units are provided in parallel with each other.
  • the electrolytic capacitor since the electrolytic capacitor has a circuit configuration in which charging is performed via a resistor when charging and the impedance is low when discharging from the electrolytic capacitor to the load, inrush current can be suppressed and space can be saved. Can be realized.
  • FIG. 1 It is a figure which shows the structure of the inrush current suppression circuit of the air conditioner corresponding to DC power supply which concerns on Embodiment 1.
  • FIG. It is a figure which shows the change of the voltage at the time of power-on of the DC power source connected to the inrush current suppression circuit of the air conditioner corresponding to DC power supply which concerns on Embodiment 1.
  • FIG. It is a figure which shows the change of the voltage drop and voltage rise of the DC power source connected to the inrush current suppression circuit of the DC power supply corresponding air conditioner which concerns on Embodiment 1.
  • FIG. It is a figure for demonstrating the operation at the time of discharge of the inrush current suppression circuit of the air conditioner corresponding to DC power supply which concerns on Embodiment 1.
  • FIG. 1 It is a figure which shows the change of the power supply voltage when a short-time power failure occurs in the power source of a DC power source. It is a figure which shows the modification 4 of the inrush current suppression circuit of the air conditioner corresponding to DC power supply which concerns on Embodiment 1. FIG. It is a figure which shows the structure of the air conditioner corresponding to DC power supply which concerns on Embodiment 2.
  • the inrush current suppression circuit of the DC power supply compatible air conditioner will be described with reference to the drawings.
  • the same components will be described with the same reference numerals, and duplicate explanations will be given only when necessary.
  • the reference numbers will be generically described.
  • the electrolytic capacitor C1 and the electrolytic capacitor C2 will be referred to as the electrolytic capacitor C.
  • Embodiment 1 is a diagram showing a configuration of an inrush current suppression circuit 1 of a DC power supply compatible air conditioner according to the first embodiment.
  • one end of the fuse F1 is connected to the positive electrode (P) of the DC power supply Vdc that outputs a DC voltage via a wiring breaker 21.
  • Units u1 to u4 are connected in parallel to the other end of the fuse F1.
  • the inrush current suppression circuit 1 has a fuse F1 and units u1 to u4. The units u1 to u4 are connected in parallel between the fuse F1 and the load X.
  • the unit u1 has a reverse power flow prevention diode D1, a reverse power flow prevention diode D2, and an electrolytic capacitor C1.
  • One end of the reverse power flow prevention diode D1 is connected in series with the fuse F1, and the other end is connected to one end of the reverse power flow prevention diode D2.
  • One end of the reverse power flow prevention diode D2 is connected in series with the other end of the reverse power flow prevention diode D1, and the other end is connected in series with one end of the load X.
  • One end of the electrolytic capacitor C1 is connected between the other end of the reverse power flow prevention diode D1 and one end of the reverse power flow prevention diode D2, and the other end is the negative electrode of the DC power supply Vdc via the load X and the circuit breaker 21 for wiring. Connected to N).
  • the unit u2 has a reverse power flow prevention diode D3, an inrush current prevention resistor R1, a reverse power flow prevention diode D4, and an electrolytic capacitor C2.
  • One end of the reverse power flow prevention diode D3 is connected to the fuse F1, and the other end is connected to one end of the inrush current prevention resistor R1.
  • One end of the inrush current prevention resistor R1 is connected to the other end of the reverse power flow prevention diode D3, and the other end is connected to the reverse power flow prevention diode D4 and the electrolytic capacitor C2.
  • One end of the reverse power flow prevention diode D4 is connected to the other end of the inrush current prevention resistor R1, and the other end is connected to one end of the load X.
  • One end of the electrolytic capacitor C2 is connected between the other end of the inrush current prevention resistor R1 and one end of the reverse power flow prevention diode D4, and the other end is connected to the negative electrode (N) of the DC power supply Vdc and the other end of the load X.
  • Unit u3 and unit u4 also have the same configuration as unit u2. That is, the unit u3 has a reverse power flow prevention diode D5, an inrush current prevention resistor R2, a reverse power flow prevention diode D6, and an electrolytic capacitor C3. One end of the reverse power flow prevention diode D5 is connected to the fuse F1, and the other end is connected to one end of the inrush current prevention resistor R2. One end of the inrush current prevention resistor R2 is connected to the other end of the reverse power flow prevention diode D5, and the other end is connected to the reverse power flow prevention diode D6 and the electrolytic capacitor C3.
  • One end of the reverse power flow prevention diode D6 is connected to the other end of the inrush current prevention resistor R2, and the other end is connected to one end of the load X.
  • One end of the electrolytic capacitor C3 is connected between the other end of the inrush current prevention resistor R2 and one end of the reverse power flow prevention diode D6, and the other end is connected to the negative electrode (N) of the DC power supply Vdc and the other end of the load X.
  • the unit u4 has a reverse power flow prevention diode D7, an inrush current prevention resistor R3, a reverse power flow prevention diode D8, and an electrolytic capacitor C4.
  • One end of the reverse power flow prevention diode D7 is connected to the fuse F1, and the other end is connected to one end of the inrush current prevention resistor R3.
  • One end of the inrush current prevention resistor R3 is connected to the other end of the reverse power flow prevention diode D7, and the other end is connected to the reverse power flow prevention diode D8 and the electrolytic capacitor C4.
  • One end of the reverse power flow prevention diode D8 is connected to the other end of the inrush current prevention resistor R3, and the other end is connected to one end of the load X.
  • One end of the electrolytic capacitor C4 is connected between the other end of the inrush current prevention resistor R3 and one end of the reverse power flow prevention diode D8, and the other end is connected to the negative electrode (N) of the DC power supply Vdc and the other end of the load X.
  • the series circuit of the reverse power flow prevention diode D1 of the unit u1 and the electrolytic capacitor C1 the series circuit of the reverse power flow prevention diode D3 of the unit u2, the inrush current prevention resistor R1 and the electrolytic capacitor C2, and the reverse power flow prevention diode D5 of the unit u3.
  • the series circuit of the inrush current prevention resistor R2 and the electrolytic capacitor C3, the reverse power flow prevention diode D7 of the unit u4, the series circuit of the inrush current prevention resistor R3 and the electrolytic capacitor C4 are connected in parallel to the DC power supply Vdc.
  • the capacitance of the electrolytic capacitor C1 is set to a value smaller than the capacitance of the electrolytic capacitors C2 to C4.
  • the load X is a load of a compressor or a fan motor of an air conditioner, and includes an inverter circuit for driving the compressor or the fan motor.
  • FIG. 1 shows three units u2 to u4 having an inrush current prevention resistor R
  • the number of units having an inrush current prevention resistor R can be increased by adjusting the electrolytic capacitor C and the inrush current prevention resistor R. , Can be optional.
  • the unit u2 of the first embodiment is the first unit, the reverse current flow prevention diode D3 is the first diode, the inrush current prevention resistor R1 is the first resistance, the reverse current flow prevention diode D4 is the second diode, and the electrolytic capacitor C2 is the first electrolytic capacitor. Also called. Further, the unit u1 of the embodiment is also referred to as a second unit, the reverse power flow prevention diode D1 is also referred to as a third diode, the reverse power flow prevention diode D2 is referred to as a fourth diode, and the electrolytic capacitor C1 is also referred to as a second electrolytic capacitor.
  • FIG. 2 is a diagram showing a change in voltage at power-on of the DC power supply Vdc connected to the inrush current suppression circuit 1 of the DC power supply compatible air conditioner according to the first embodiment.
  • FIG. 3 is a diagram showing changes in voltage drop and voltage rise of the DC power supply Vdc connected to the inrush current suppression circuit 1 of the DC power supply compatible air conditioner according to the first embodiment.
  • the voltage of the DC power supply Vdc rises sharply from 0 [V] to the rated voltage via the minimum operating voltage.
  • the case where the voltage rises to the rated voltage will be described, but the same operation will be performed when the power supply voltage Vdc rises within the operating voltage range from 0 [V].
  • the power supply voltage fluctuates the power supply voltage suddenly rises when switching from the section B to which the minimum operating voltage shown in FIG. 3 is supplied to the section C to which the rated voltage is supplied.
  • the description will be made with a sudden rise in the power supply voltage from the minimum operating voltage to the rated voltage, but the same operation will be performed when the voltage suddenly rises within the operating voltage range.
  • the DC current i1 output from the DC power supply Vdc passes through the fuse F1 for protecting the secondary side by the short-circuit current and branches into the DC current i2 and the DC current i3. Since the unit u1 does not have an inrush current prevention resistor, the direct current i3 flows through the reverse power flow prevention diode D1 to the electrolytic capacitor C1 and charges the electrolytic capacitor C1.
  • the electrolytic capacitor C1 has a capacity greater than the capacity required to suppress the ripple voltage caused by the influence of the load, and the inrush current of i1 causes the fuse F1 to blow and the wiring breaker 21 installed further upstream to malfunction. The capacity should not exceed the limit.
  • the direct current i2 branches into a direct current i4, a direct current i5, and a direct current i6.
  • the direct current i4 charges the electrolytic capacitor C2 from the reverse power flow prevention diode D3 via the inrush current prevention resistor R1.
  • the direct current i5 charges the electrolytic capacitor C3 from the reverse power flow prevention diode D5 via the inrush current prevention resistor R2.
  • the direct current i6 charges the electrolytic capacitor C4 from the reverse power flow prevention diode D7 via the inrush current prevention resistor R3.
  • FIG. 4 is a diagram for explaining the operation at the time of discharge of the inrush current suppression circuit 1 of the DC power supply compatible air conditioner according to the first embodiment.
  • FIG. 5 is a diagram showing a change in the power supply voltage when a short-time power failure occurs in the power supply of the DC power supply Vdc.
  • the current i11 discharged from the electrolytic capacitor C2 passes through the reverse power flow prevention diode D4 and flows to the load X to supply electric power to the load X.
  • the current i12 discharged from the electrolytic capacitor C3 passes through the reverse power flow prevention diode D6 and flows to the load X to supply electric power to the load X.
  • the inrush current suppression circuit 1 of the DC power supply compatible air conditioner according to the first embodiment, the power supply voltage of the DC power supply Vdc rises sharply in a state where the electrolytic capacitors C1 to C4 are not sufficiently charged. Even so, since the electrolytic capacitors C2 to C4 are charged via the respective inrush current prevention resistors R1 to R3, the inrush current can be limited.
  • the electrolytic capacitor C1 is charged without passing through the inrush current prevention resistor R, but the inrush current suppression circuit 1 of the first embodiment is equipped with a plurality of electrolytic capacitors C, and the capacity of the electrolytic capacitor C1 is small. Can be set. Therefore, since the inrush current to the electrolytic capacitor C1 can be reduced, the inrush current value to the electrolytic capacitors C1 to C4 does not increase, and the fuse is blown in the air conditioner and the wiring is installed outside the air conditioner. It is possible to prevent a malfunction (trip) of the circuit breaker 21.
  • the current is supplied from the electrolytic capacitors C2 to C4 to the load when a power failure occurs, so that the load operation can be continued in a short power failure time. It becomes possible to make it.
  • the units u2 to u4 have been described, but by further increasing the number of connected units u, it is possible to prolong the time during which the operation can be continued even if a power failure occurs for a longer time. That is, the number of units u connected may be determined from the time at which the operation is desired to be continued when a power failure occurs.
  • the reverse power flow prevention diode D3 in the unit u2 the rush current prevention resistor R1 and the electrolytic capacitor C2 in series, and the reverse power flow prevention diode D5 and the rush current prevention resistor R2 in the unit u3.
  • the series circuit of the electrolytic capacitor C3 and the series circuit of the reverse power flow prevention diode D7, the inrush current prevention resistor R3 and the electrolytic capacitor C4 in the unit u4 are arranged in parallel with each other, and the capacitance of each electrolytic capacitor C2 to C4 can be reduced. Therefore, since the inrush current flowing through each of the inrush current prevention resistors R1 to R3 can be reduced, the inrush current prevention resistors R1 to R3 can be made into a small resistor that can be mounted on the substrate.
  • Modification 4-1 Modification 1
  • the inrush current suppression circuit 1 of the DC power supply compatible air conditioner has been described, but the inrush current suppression circuit 1 is not limited to the inrush current suppression circuit 1 of the DC power supply compatible air conditioner, and other It is also applicable to equipment.
  • Modification 2 The case where the units u1 to u4 of the inrush current suppression circuit 1 have the reverse power flow prevention diodes D2, D4, D6 and D8, respectively, has been described, but the reverse power flow prevention diodes D2, D4, D6 and D8 are not always necessary. When the reverse power flow prevention diodes D2, D4, D6 and D8 are not provided, the inrush current suppression circuit 1 can be further miniaturized. 4-3.
  • Modification 3 In the first embodiment, the case where the unit u1 having no inrush current prevention resistance is provided has been described, but the inrush current suppression circuit 1 does not have to provide the electrolytic capacitor C1 and the reverse power flow prevention diode D2 in the unit u1. 4-4. Modification 4 A DC reactor L1 for suppressing inrush current may be added between the connection point of the reverse power flow prevention diode D1 and the electrolytic capacitor C1 of the unit u1 and the reverse power flow prevention diode D1.
  • FIG. 6 is a diagram showing a modified example 4 of the inrush current suppression circuit 1 of the DC power supply compatible air conditioner according to the first embodiment.
  • the DC reactor L1 acts to suppress the change in response to a sudden change in current, the value of the inrush current flowing into the electrolytic capacitor C1 when the power is turned on can be further reduced.
  • Embodiment 2. 1. 1. Configuration FIG. 7 is a diagram showing a configuration of a DC power supply compatible air conditioner according to the second embodiment.
  • the DC power supply Vdc is connected to the air conditioner 20 via the wiring breaker 21.
  • the positive electrode (P) of the DC power supply Vdc is connected to the fuse F1 of the air conditioner 20.
  • a reverse power flow prevention diode D1 is connected in series to the fuse F1.
  • a unit u11, a unit u12, and a unit u13 constituting an inrush current suppression circuit are connected in parallel between the reverse power flow prevention diode D1 and the load X.
  • the load X converts the DC voltage supplied from the DC power supply Vdc or the DC voltage supplied from the inrush current suppression circuit 1 at the time of discharge into an AC voltage by an inverter circuit or the like and supplies the load X to the compressor or the like.
  • the unit u11 has an inrush current prevention resistor R1, a reverse power flow prevention diode D11, and an electrolytic capacitor C1. One end of the inrush current prevention resistor R1 is connected to the reverse power flow prevention diode D1, and the other end is connected to the electrolytic capacitor C1.
  • One end of the reverse power flow prevention diode D11 is connected to the reverse power flow prevention diode D1, the other end is connected to the electrolytic capacitor C1, and the reverse power flow prevention diode D11 is connected in parallel with the inrush current prevention resistor R1.
  • One end of the electrolytic capacitor C1 is connected to the other end of the inrush current prevention resistor R1 and the reverse power flow prevention diode D11, and the other end is connected to the negative electrode (N) of the DC power supply Vdc.
  • the unit u12 has an inrush current prevention resistor R2, a reverse power flow prevention diode D12, and an electrolytic capacitor C2.
  • One end of the inrush current prevention resistor R2 is connected to the reverse power flow prevention diode D1, and the other end is connected to the electrolytic capacitor C2.
  • One end of the reverse power flow prevention diode D12 is connected to the reverse power flow prevention diode D1, the other end is connected to the electrolytic capacitor C2, and the reverse power flow prevention diode D12 is connected in parallel with the inrush current prevention resistor R2.
  • One end of the electrolytic capacitor C2 is connected to the other end of the inrush current prevention resistor R2 and the reverse power flow prevention diode D12, and the other end is connected to the negative electrode (N) of the DC power supply Vdc.
  • the unit u13 has an inrush current prevention resistor R3, a reverse power flow prevention diode D13, and an electrolytic capacitor C3.
  • One end of the inrush current prevention resistor R3 is connected to the reverse power flow prevention diode D1, and the other end is connected to the electrolytic capacitor C3.
  • One end of the reverse power flow prevention diode D13 is connected to the reverse power flow prevention diode D1, the other end is connected to the electrolytic capacitor C3, and the reverse power flow prevention diode D13 is connected in parallel with the inrush current prevention resistor R3.
  • One end of the electrolytic capacitor C3 is connected to the other end of the inrush current prevention resistor R3 and the reverse power flow prevention diode D13, and the other end is connected to the negative electrode (N) of the DC power supply Vdc.
  • the voltage of the DC power supply Vdc rises from 0 [V] to the rated voltage, as shown in FIG.
  • the DC current I1 supplied from the DC power supply Vdc flows to the air conditioner 20, and the current flows to the units u11 to u13 via the fuse F1 for protecting the secondary side when a short-circuit current occurs and the reverse power flow prevention diode D1. Flows.
  • the direct current I2 flows to the electrolytic capacitor C1 of the main circuit via the inrush current prevention resistor R1.
  • the direct current I3 flows to the electrolytic capacitor C2 of the main circuit via the inrush current prevention resistor R2.
  • the direct current I4 flows to the electrolytic capacitor C3 of the main circuit via the inrush current prevention resistor R3.
  • the currents I2, I3, and I4 are V / R1, V / R2, and V / R3, where V [v] is the power supply voltage Vdc.
  • the inrush current prevention resistors R1, R2, and R3 suppress the maximum peak value, and as a result, I1 which is the sum of I2, I3, and I4 is also suppressed. Therefore, by determining the values of the resistors R1, R2, and R3 according to the voltage of the DC power supply Vdc and the blown characteristics of the fuse F1 and the cutoff characteristics of the wiring breaker, the fuse F1 is below the blown level and the wiring breaker It can be below the cutoff level.
  • the above is the route for charging.
  • the DC current I2 from the electrolytic capacitor C1 is discharged, and the load is passed through the reverse power flow prevention diode D11 having a lower impedance instead of the inrush current prevention resistor R1.
  • the current I3 from the electrolytic capacitor C2 flows to the load X via the reverse power flow prevention diode D12 having a lower impedance instead of the inrush current prevention resistor R2.
  • the current I4 from the electrolytic capacitor C3 flows to the load X via the reverse power flow prevention diode D13 having a lower impedance instead of the inrush current prevention resistor R3.
  • the current directions of the currents I2 to I4 are opposite to those in FIG. 7.
  • the embodiment is presented as an example and is not intended to limit the scope of the embodiment.
  • the embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the embodiment. These embodiments and variations thereof are included in the scope and gist of the embodiments.
  • the inrush current prevention resistor R1 and the reverse power flow prevention diode D11 are used. It does not have to be.
  • Inrush current suppression circuit Vdc DC power supply, X load, u1 to u4, u11 to u13 units, D1 to D8, D11 to D13 reverse power flow prevention diode, R1 to R3 inrush current prevention resistor, L1 DC reactor, 20 air conditioner , 21 Circuit breaker for wiring, 22 Inverter.

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  • Power Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)
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Abstract

L'invention concerne un circuit de suppression de courant d'appel pour climatiseur à alimentation en courant continu (CC), comprenant une première unité qui est équipée : d'une première diode connectée par une borne à l'électrode positive (P) d'une alimentation CC ; d'une résistance connectée par une borne à l'autre borne de la première diode ; et d'un premier condensateur électrolytique dont une borne est connectée entre l'autre borne de la résistance et une charge, et dont l'autre borne est connectée à l'électrode négative (N) de l'alimentation CC. Une pluralité de premières unités sont disposées entre l'alimentation électrique CC et la charge, et sont montées en parallèle entre elles.
PCT/JP2019/042813 2019-10-31 2019-10-31 Circuit de suppression de courant d'appel pour climatiseur à alimentation en courant continu WO2021084691A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201980098767.3A CN114586254A (zh) 2019-10-31 2019-10-31 支持直流供电空调机的抑制冲击电流电路
JP2021553990A JP7154439B2 (ja) 2019-10-31 2019-10-31 直流給電対応空気調和機の突入電流抑制回路
PCT/JP2019/042813 WO2021084691A1 (fr) 2019-10-31 2019-10-31 Circuit de suppression de courant d'appel pour climatiseur à alimentation en courant continu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/042813 WO2021084691A1 (fr) 2019-10-31 2019-10-31 Circuit de suppression de courant d'appel pour climatiseur à alimentation en courant continu

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WO2021084691A1 true WO2021084691A1 (fr) 2021-05-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024013192A1 (fr) * 2022-07-15 2024-01-18 Sma Solar Technology Ag Dispositif et procédé d'égalisation de tension d'une pluralité de réseaux à deux bornes, et système de distribution d'électricité à courant continu
CN117741410A (zh) * 2024-02-07 2024-03-22 锦州辽晶电子科技股份有限公司 一种大功率混合集成电路老化系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006271039A (ja) * 2005-03-22 2006-10-05 Sharp Corp 突入電流保護装置
JP2016194878A (ja) * 2015-04-01 2016-11-17 富士電機株式会社 電源制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006271039A (ja) * 2005-03-22 2006-10-05 Sharp Corp 突入電流保護装置
JP2016194878A (ja) * 2015-04-01 2016-11-17 富士電機株式会社 電源制御装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024013192A1 (fr) * 2022-07-15 2024-01-18 Sma Solar Technology Ag Dispositif et procédé d'égalisation de tension d'une pluralité de réseaux à deux bornes, et système de distribution d'électricité à courant continu
CN117741410A (zh) * 2024-02-07 2024-03-22 锦州辽晶电子科技股份有限公司 一种大功率混合集成电路老化系统
CN117741410B (zh) * 2024-02-07 2024-05-14 锦州辽晶电子科技股份有限公司 一种大功率混合集成电路老化系统

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CN114586254A (zh) 2022-06-03
JP7154439B2 (ja) 2022-10-17

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