KR100981518B1 - DC-DC Conversion circuit preventing dark current - Google Patents

DC-DC Conversion circuit preventing dark current Download PDF

Info

Publication number
KR100981518B1
KR100981518B1 KR1020040106363A KR20040106363A KR100981518B1 KR 100981518 B1 KR100981518 B1 KR 100981518B1 KR 1020040106363 A KR1020040106363 A KR 1020040106363A KR 20040106363 A KR20040106363 A KR 20040106363A KR 100981518 B1 KR100981518 B1 KR 100981518B1
Authority
KR
South Korea
Prior art keywords
converter
dark current
conversion circuit
resistors
voltage
Prior art date
Application number
KR1020040106363A
Other languages
Korean (ko)
Other versions
KR20060067553A (en
Inventor
최덕관
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020040106363A priority Critical patent/KR100981518B1/en
Publication of KR20060067553A publication Critical patent/KR20060067553A/en
Application granted granted Critical
Publication of KR100981518B1 publication Critical patent/KR100981518B1/en

Links

Images

Classifications

    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00306—Overdischarge protection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • 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
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

본 발명은 암전류를 방지하는 직류전압 변환회로에 관한 것으로서, 고전압을 변환하여 배터리를 충전하고, 차량내 전원을 공급하는 DC-DC컨버터와, 상기 DC-DC컨버터의 출력전압을 조절하는 다수의 저항과, 상기 DC-DC컨버터의 출력단에 연결되는 상기 다수의 저항으로 인하여 발생되는 암전류를 방지하기 위해 스위칭 소자가 구비되는 암전류 방지부를 포함하여 구성되어, 상기 DC-DC컨버터의 동작여부에 따라 상기 스위칭소자를 온/오프시켜 차량의 시동이 정지되는 경우에도 상기 DC-DC컨버터의 출력단에서 발생되는 암전류를 방지하고, 그에 따라 배터리가 방전되는 것을 방지하는 효과가 있다.
The present invention relates to a DC voltage conversion circuit for preventing a dark current, a DC-DC converter for converting a high voltage to charge the battery, supplying power in the vehicle, and a plurality of resistors for adjusting the output voltage of the DC-DC converter And a dark current prevention part provided with a switching element to prevent dark current generated by the plurality of resistors connected to the output terminal of the DC-DC converter. The switching is performed according to whether the DC-DC converter is operated. Even when the vehicle is stopped by turning on / off the device, there is an effect of preventing the dark current generated at the output terminal of the DC-DC converter, thereby preventing the battery from being discharged.

암전류, DC-DC컨버터, 저항, 배터리Dark Current, DC-DC Converters, Resistors, Batteries

Description

암전류를 방지하는 직류전압 변환회로{DC-DC Conversion circuit preventing dark current} DC-DC Conversion circuit preventing dark current             

도 1 은 종래 기술에 따른 직류전압 변환회로가 도시된 회로도,1 is a circuit diagram showing a DC voltage conversion circuit according to the prior art,

도 2 는 본 발명에 따른 암전류를 방지하는 직류전압 변환회로가 도시된 도이다.
2 is a diagram illustrating a DC voltage conversion circuit for preventing a dark current according to the present invention.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

10 : DC-DC컨버터 20: 암전류 방지부 10: DC-DC converter 20: dark current prevention unit

M10: 스위칭소자(MOSFET) R10 내지 R30: 저항M10: switching element (MOSFET) R10 to R30: resistance

V10: 하이사이드배터리(High-side Battery) V10: High-side Battery

V20: 로우사이드배터리(Low-side Battery)
V20: Low-side Battery

본 발명은 암전류를 방지하는 직류전압 변환회로에 관한 것으로서, 특히 차 량 시동 정지시 DC-DC컨버터의 출력단에서 발생되는 암전류로 인한 배터리 방전을 방지하기 위한 암전류를 방지하는 직류전압 변환회로에 관한 것이다.
The present invention relates to a DC voltage conversion circuit for preventing a dark current, and more particularly to a DC voltage conversion circuit for preventing a dark current to prevent battery discharge due to a dark current generated at the output terminal of the DC-DC converter when the vehicle is stopped. .

종래 발명에 따른 직류전압 변환회로는 도 1에 도시된 바와 같이, 고전압의 하이사이드배터리(High-side Battery, V1)와, 저전압의 로우사이드배터리(Low-side Battery, V2)와 다수의 저항(R1 내지 R3)과, 상기 하이사이드배터리(High-side Battery, V1)의 고전압을 변환하여 상기 로우사이드배터리(High-side Battery, V2)로 충전하고, 차량내 전장부하에 전원을 공급하는 DC-DC컨버터(1)를 포함하여 구성된다.As shown in FIG. 1, the DC voltage conversion circuit according to the related art has a high voltage high-side battery V1, a low voltage low-side battery V2, and a plurality of resistors. R1 to R3) and DC- which converts the high voltage of the high-side battery V1 to charge the high-side battery V2 and supplies power to the electric load in the vehicle. It comprises a DC converter (1).

상기 DC-DC컨버터(1)는 일반적으로 전류 또는 전력을 기준으로 높은 전력변환이 요구되는 경우 코일(L) 또는 트랜스를 사용하여 전압을 변환하는 회로이다.즉, DC-DC 컨버터란 직류 전압으로부터 다양한 크기의 직류 전압을 생성하는 것으로, 입력 전압보다 출력 전압이 크게 되도록 하는 경우에 사용된다. In general, the DC-DC converter 1 is a circuit for converting a voltage using a coil L or a transformer when high power conversion is required based on current or power. That is, a DC-DC converter is a DC-DC converter. It is used to generate DC voltages of various magnitudes and to make the output voltage larger than the input voltage.

상기 저항(R1 내지 R3)는 상기 DC-DC컨버터(1)의 출력전압 및 DC-DC컨버터(1) 동작의 제어를 위해, 상기 DC-DC컨버터(1)의 출력단에 연결되어 상기 직류전압 변환회로의 전류소모소자로서 사용된다. The resistors R1 to R3 are connected to an output terminal of the DC-DC converter 1 to convert the DC voltage to control the output voltage of the DC-DC converter 1 and the operation of the DC-DC converter 1. It is used as the current consumption element of the circuit.

또한, 상기 저항(R1 내지 R3)는 상기 직류전압 변환회로의 더미저항으로서 상기 DC-DC컨버터(1)의 출력단에 연결된다. In addition, the resistors R1 to R3 are connected to an output terminal of the DC-DC converter 1 as a dummy resistor of the DC voltage conversion circuit.

그러나, 상기 직류전압 변환회로는 상기 DC-DC컨버터(1)가 동작중인 경우에는 출력전압을 조절하는 상기 저항(R1 내지 R3)가 상기 직류전압 변화회로에 큰 영 향을 주지 않으나, 상기 DC-DC컨버터(1)가 동작 하지 않는 경우 즉, 차량의 시동 정지시에는 상기 로우사이드배터리(V2)의 불필요한 소모전류인 암전류 발생의 원인이 된다는 문제점이 있다.
However, in the DC voltage conversion circuit, when the DC-DC converter 1 is in operation, the resistors R1 to R3 for adjusting the output voltage do not significantly affect the DC voltage change circuit. When the DC converter 1 does not operate, that is, when the vehicle stops starting, it causes a dark current, which is an unnecessary consumption current of the low side battery V2.

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 차량의 시동 정지시 DC-DC컨버터의 출력단의 전류소모소자로 인하여 발생되는 암전류로 인한 로우사이드 배터리의 방전을 방지하는 암전류를 방지하는 직류전압 변환회로를 제공하는데 그 목적이 있다.
The present invention has been made to solve the above problems of the prior art, to prevent the dark current to prevent the discharge of the low-side battery due to the dark current generated by the current consumption element of the output terminal of the DC-DC converter when the vehicle stops starting The purpose is to provide a DC voltage conversion circuit.

상기한 과제를 해결하기 위한 본 발명에 따른 암전류를 방지하는 직류전압 변환회로는 고전압을 변환하여 배터리를 충전하고, 차량내 전원을 공급하는 DC-DC컨버터와, 상기 DC-DC컨버터의 출력전압을 조절하는 다수의 저항과, 상기 DC-DC컨버터의 출력단의 상기 다수의 저항으로 인하여 발생되는 암전류를 방지하기 위해 스위칭 소자가 구비되는 암전류 방지부를 포함하여 구성되는 것을 특징으로 한다.
The DC voltage conversion circuit for preventing the dark current according to the present invention for solving the above problems is to convert the high voltage to charge the battery, supply the power in the vehicle and the output voltage of the DC-DC converter And a dark current prevention unit including a plurality of resistors to adjust and a switching element to prevent dark current generated by the plurality of resistors of the output terminal of the DC-DC converter.

이하, 첨부된 도면을 참조하여 본 발명의 실시예를 설명하면 다음과 같다. 도 2는 본 발명에 따른 암전류를 방지하는 직류전압 변환회로가 도시된 도이다. 본 발명에 따른 암전류를 방지하는 직류전압 변환회로는 도 2에 도시된 바와 같이, 고 전압의 하이사이드 배터리(High-side battery, V10)와, 저전압의 로우사이드배터리(Low-side battery, V20)와, 차량의 각 전장부하에 전원을 공급하는 DC-DC컨버터(10)와, 상기 DC-DC컨버터(10)의 출력단에서 발생되는 암전류를 방지하는 암전류방지부(20)를 포함하여 구성된다. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 2 is a diagram illustrating a DC voltage conversion circuit for preventing a dark current according to the present invention. As shown in FIG. 2, the DC voltage conversion circuit for preventing a dark current according to the present invention includes a high voltage high-side battery V10 and a low voltage low-side battery V20. And a DC-DC converter 10 for supplying power to each electric load of the vehicle, and a dark current prevention unit 20 for preventing dark current generated at an output terminal of the DC-DC converter 10.

또한, 상기 직류전압 변환회로는 상기 DC-DC컨버터(10)로부터 출력되는 전압을 조절하고, 상기 DC-DC컨버터(10)의 동작 제어 및 더미저항을 목적으로 사용되는 다수의 저항(R10 내지 R30)을 포함하여 구성된다. In addition, the DC voltage conversion circuit adjusts the voltage output from the DC-DC converter 10, and a plurality of resistors R10 to R30 used for the purpose of controlling the operation of the DC-DC converter 10 and dummy resistance. It is configured to include).

상기 다수의 저항(R10 내지 R30)은 상기 DC-DC컨버터(10)의 출력단에 연결되어 상기 직류전압 변환회로의 더미저항으로 사용된다. The plurality of resistors R10 to R30 are connected to the output terminal of the DC-DC converter 10 and used as dummy resistors of the DC voltage conversion circuit.

상기 DC-DC컨버터(10)는 내부에 코일 또는 트랜스를 포함하여 구성됨으로서 상기 하이사이드배터리(High-side battery, V10)로부터 입력되는 고전압을 변환하여 상기 로우사이드배터리(Low-side battery, V20)로 충전한다. The DC-DC converter 10 is configured to include a coil or a transformer therein to convert the high voltage input from the high-side battery (V10) to the low-side battery (V20) To charge.

또한, 상기 DC-DC컨버터(10)는 상기와 같이 직류전압을 변환함으로서 차량의 각 부의 전장부하에 적절한 전원을 공급하게 된다. In addition, the DC-DC converter 10 supplies the appropriate power to the electrical load of each part of the vehicle by converting the DC voltage as described above.

상기 다수의 저항은 상기 DC-DC컨버터(10)의 출력단에 연결되어 상기 로우사이드배터리(Low-side battery, V20)에 대하여 병렬연결된다. The plurality of resistors are connected to the output terminal of the DC-DC converter 10 and connected in parallel with the low-side battery V20.

즉, 제 1 저항(R10) 및 제 2저항(R20)은 직렬연결되어 상기 DC-DC컨버터(10)와 연결되고, 제 3 저항(R30)은 상기 제 1 저항(R10) 및 제 2저항(R20)에 대하여 병렬연결되어 상기 DC-DC컨버터(10)와 상기 로우사이드 배터리(Low-side battery, V20)사이에 연결된다. That is, the first resistor R10 and the second resistor R20 are connected in series to the DC-DC converter 10, and the third resistor R30 is connected to the first resistor R10 and the second resistor ( R20 is connected in parallel and connected between the DC-DC converter 10 and the low-side battery V20.                     

이때, 상기 DC-DC컨버터(10)의 출력전압 제어를 위한 신호가 상기 제 1 저항 및 제 2저항의 사이에 연결된다. In this case, a signal for controlling the output voltage of the DC-DC converter 10 is connected between the first resistor and the second resistor.

상기 암전류 방지부(20)는 상기 DC-DC컨버터(10)가 비동작하는 경우, 즉 차량의 시동이 정지된 경우 상기 제 1 내지 제 3저항(R10 내지 R30)을 통해 발생되는 암전류를 방지한다. The dark current prevention unit 20 prevents the dark current generated through the first to third resistors R10 to R30 when the DC-DC converter 10 is inactive, that is, when the vehicle is stopped. .

이때, 상기 암전류 방지부(20)는 불필요한 소비 전류의 발생을 방지하기 위해 상기 DC-DC컨버터(10)의 동작 상태에 따라 온/오프(ON/OFF)되는 스위칭소자(M10)를 포함하여 구성된다. In this case, the dark current prevention unit 20 is configured to include a switching element (M10) that is turned on / off (ON / OFF) in accordance with the operating state of the DC-DC converter 10 in order to prevent the generation of unnecessary current consumption. do.

상기 스위칭소자(M10)는 MOSFET이 사용되며, 그밖에 스위칭 기능을 갖는 트랜지스터 및 CMOS가 사용될 수 있다. The switching device M10 may be a MOSFET, and a transistor and a CMOS having a switching function may be used.

상기 암전류 방지부(20)는 직렬연결되는 상기 제 1 저항 및 제 2저항(R10, R20)과 일단이 연결되고, 상기 제 3저항과 직렬연결된다. The dark current prevention unit 20 has one end connected to the first and second resistors R10 and R20 connected in series and connected to the third resistor in series.

즉, 상기 스위칭소자(M10)은 드레인(Drain)이 직렬연결되는 상기 제 1저항 및 제 2저항(R10, R20)의 일단과 연결되고, 또한 상기 제 1 및 제 2저항(R10, R20)에 대하여 병령연결되는 상기 제 3저항과 연결된다. That is, the switching device M10 is connected to one end of the first and second resistors R10 and R20 to which a drain is connected in series, and is further connected to the first and second resistors R10 and R20. It is connected with the third resistor which is connected parallel with respect to.

또한, 상기 스위칭 소자(M10)은 게이트(Gate)로 상기 DC-DC컨버터(10)의 온/오프(ON/OFF)에 따른 신호가 인가되고, 소스(Source)는 접지된다.In addition, a signal corresponding to ON / OFF of the DC-DC converter 10 is applied to the switching element M10 as a gate, and a source is grounded.

상기 암전류 방지부(20)는 상기 DC-DC컨버터(10)가 동작중인 경우, 상기 스위칭 소자(M10)의 게이트(Gate)에 온(ON) 신호로 5V가 인가되어 상기 스위칭 소자(M10)가 도통(Turn-On)되고, 드레인-소스(Drain-Source)간에 전류가 흐르게 된 다.When the DC-DC converter 10 is operating, the dark current prevention unit 20 is applied with 5 V as an ON signal to the gate of the switching element M10 so that the switching element M10 is applied. It is turned on and current flows between the drain and the source.

이에 따라, 상기 제 1 내지 제 3저항은 상기 DC-DC컨버터(10)의 출력전압 조절 및 더미저항의 역할을 수행하게 되고, 상기 DC-DC컨버터(10)에 의해 상기 로우사이드배터리(Low-side battery, V20)가 충전되며, 차량에 전원이 공급되게 된다. Accordingly, the first to third resistors serve as an output voltage control of the DC-DC converter 10 and a dummy resistor, and the low-side battery (Low-) is driven by the DC-DC converter 10. The side battery V20 is charged and power is supplied to the vehicle.

또한, 상기 암전류 방지부(20)는 상기 DC-DC컨버터(10)의 동작이 정지되는 경우에는 상기 스위칭소자(M10)의 상기 게이트(Gate)에 상기 DC-DC컨버터(10)의 오프(OFF)신호인 0V가 인가되어, 상기 스위칭 소자(M10)가 턴오프(Turn-OFF)된다. In addition, when the operation of the DC-DC converter 10 is stopped, the dark current prevention unit 20 turns off the DC-DC converter 10 to the gate of the switching element M10. Signal 0V is applied, and the switching element M10 is turned off.

이때, 상기 스위칭 소자(M10)가 오프(OFF)됨으로서 상기 로우사이드배터리(Low-side battery, V20)로부터 상기 제 1 내지 제 3저항(R10 내지 R30)으로 흐르는 소모전류인 암전류가 발생되지 않게 된다. In this case, the switching element M10 is turned off so that a dark current that is a current consumption flowing from the low-side battery V20 to the first to third resistors R10 to R30 is not generated. .

따라서, 상기 직류전압 변환회로는 상기 암전류 방지부(20)를 포함하여 구성됨으로서 상기 DC-DC컨버터(10)의 온/오프(ON/OFF)에 따라 스위칭소자(M10)가 턴 온/ 턴 오프(turn-ON/turn-OFF)되게 되어 상기 로우사이드배터리(Low-side battery) 및 상기 다수의 저항간의 암전류가 발생되는 것을 방지할 수 있게 된다.
Therefore, the DC voltage conversion circuit includes the dark current prevention unit 20 so that the switching element M10 is turned on / off in accordance with the on / off of the DC-DC converter 10. (turn-ON / turn-OFF) may prevent the dark current between the low-side battery and the plurality of resistors to be generated.

이상과 같이 본 발명에 의한 암전류를 방지하는 직류전압 변환회로를 예시된 도면을 참조로 설명하였으나, 본 명세서에 개시된 실시예와 도면에 의해 본 발명은 한정되지 않고, 기술사상이 보호되는 범위 이내에서 응용될 수 있다.
As described above, the DC voltage conversion circuit for preventing the dark current according to the present invention has been described with reference to the illustrated drawings. However, the present invention is not limited by the embodiments and drawings disclosed herein, and the technical idea is within the scope of protection. Can be applied.

상기와 같이 구성되는 본 발명에 따른 암전류를 방지하는 직류전압 변환회로는 DC-DC컨버터의 출력단에 스위칭 소자로 구성되는 암전류 방지부를 포함하여 구성됨으로서, 상기 DC-DC컨버터의 동작여부에 따라 상기 스위치소자를 온오프시켜 차량의 시동이 정지되는 경우에 상기 DC-DC컨버터의 출력단에서 발생되는 암전류를 방지하고, 그에 따라 배터리가 방전되는 것을 방지하는 효과가 있다.  The DC voltage conversion circuit for preventing the dark current according to the present invention configured as described above comprises a dark current prevention unit configured as a switching element in the output terminal of the DC-DC converter, the switch according to whether the DC-DC converter operation When the start of the vehicle is stopped by turning the device on and off, there is an effect of preventing the dark current generated at the output terminal of the DC-DC converter, thereby preventing the battery from being discharged.

Claims (3)

고전압을 변환하여 배터리를 충전하고, 차량내 전원을 공급하는 DC-DC컨버터와;A DC-DC converter converting a high voltage to charge a battery and supplying power in a vehicle; 상기 DC-DC컨버터의 출력전압을 조절하는 다수의 저항과;A plurality of resistors for adjusting the output voltage of the DC-DC converter; 상기 DC-DC컨버터의 출력단에 연결되는 상기 다수의 저항으로 인하여 발생되는 암전류를 방지하기 위해 스위칭 소자가 구비되는 암전류방지부를 포함하고,It includes a dark current prevention unit is provided with a switching element to prevent the dark current generated by the plurality of resistors connected to the output terminal of the DC-DC converter, 상기 스위칭소자는 MOSFET이고,The switching device is a MOSFET, 상기 스위칭소자는 게이트(Gate)로 상기 DC-DC컨버터의 동작여부에 따른 온/오프(ON/OFF)신호가 인가되는 것을 특징으로 하는 암전류를 방지하는 직류전압 변환회로.The switching element is a gate (DC) DC voltage conversion circuit for preventing a dark current, characterized in that the on / off (ON / OFF) signal is applied according to the operation of the DC-DC converter. 삭제delete 삭제delete
KR1020040106363A 2004-12-15 2004-12-15 DC-DC Conversion circuit preventing dark current KR100981518B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020040106363A KR100981518B1 (en) 2004-12-15 2004-12-15 DC-DC Conversion circuit preventing dark current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040106363A KR100981518B1 (en) 2004-12-15 2004-12-15 DC-DC Conversion circuit preventing dark current

Publications (2)

Publication Number Publication Date
KR20060067553A KR20060067553A (en) 2006-06-20
KR100981518B1 true KR100981518B1 (en) 2010-09-10

Family

ID=37162105

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020040106363A KR100981518B1 (en) 2004-12-15 2004-12-15 DC-DC Conversion circuit preventing dark current

Country Status (1)

Country Link
KR (1) KR100981518B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101261312B1 (en) 2011-06-30 2013-05-06 대성전기공업 주식회사 Voltage conversion circuit preventing dark current

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01146240A (en) * 1987-12-01 1989-06-08 Nec Corp Ion implanting apparatus
JPH0819250A (en) * 1994-06-27 1996-01-19 Toyota Central Res & Dev Lab Inc Power supply apparatus
JP2002165440A (en) * 2000-11-21 2002-06-07 Densei Lambda Kk No load compensation circuit in power supply unit
JP2004248424A (en) 2003-02-14 2004-09-02 Toyota Motor Corp Switch control circuit

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01146240A (en) * 1987-12-01 1989-06-08 Nec Corp Ion implanting apparatus
JPH0819250A (en) * 1994-06-27 1996-01-19 Toyota Central Res & Dev Lab Inc Power supply apparatus
JP2002165440A (en) * 2000-11-21 2002-06-07 Densei Lambda Kk No load compensation circuit in power supply unit
JP2004248424A (en) 2003-02-14 2004-09-02 Toyota Motor Corp Switch control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101261312B1 (en) 2011-06-30 2013-05-06 대성전기공업 주식회사 Voltage conversion circuit preventing dark current

Also Published As

Publication number Publication date
KR20060067553A (en) 2006-06-20

Similar Documents

Publication Publication Date Title
US6559689B1 (en) Circuit providing a control voltage to a switch and including a capacitor
US7911192B2 (en) High voltage power regulation using two power switches with low voltage transistors
JP2007014193A (en) Efficient rush current limiting circuit having dual-gate two-way hemt
US7528589B2 (en) Step-up DC/DC converter and electronic appliance therewith
JP2007318891A (en) Power circuit for driving switching element
CN110460226B (en) Switching power supply device
US8610487B2 (en) Electronic device with switching element driven by control voltage
CN110299835B (en) System and method for powering a switching converter
US20140177308A1 (en) Electrical power conversion device
CN213846230U (en) Overcurrent protection circuit
US20080197904A1 (en) Circuit Arrangement for Switching a Load
US20110133714A1 (en) Power converter with protection mechanism for diode in open-circuit condition and pulse-width-modulation controller thereof
CN106708154B (en) Single power supply circuit and power supply system
WO2013187269A1 (en) Switching power source device
WO2007015520A1 (en) Power supply device
US20130119957A1 (en) Bi-directional Switching Regulator and Control Circuit Thereof
KR101147257B1 (en) A positive direct current source stage inrush current reduction circuit
US8446207B2 (en) Load driving circuit
KR100632544B1 (en) DC driver gate driver circuit
KR100981518B1 (en) DC-DC Conversion circuit preventing dark current
WO2022137292A1 (en) Power source for driving synchronous rectification element of sepic converter
US20020024827A1 (en) Current limited buck power supply
KR20190108785A (en) Power source converter, apparatus for driving switching element and apparatus for driving load
CN210297249U (en) Self-oscillation bidirectional current limiting circuit
JP2020188673A (en) Electric circuit and power supply

Legal Events

Date Code Title Description
N231 Notification of change of applicant
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130830

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20140901

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20150831

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee