WO2020226237A1 - Power stabilization device in electrical system - Google Patents

Power stabilization device in electrical system Download PDF

Info

Publication number
WO2020226237A1
WO2020226237A1 PCT/KR2019/012030 KR2019012030W WO2020226237A1 WO 2020226237 A1 WO2020226237 A1 WO 2020226237A1 KR 2019012030 W KR2019012030 W KR 2019012030W WO 2020226237 A1 WO2020226237 A1 WO 2020226237A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
signal
power supply
unit
ignition key
Prior art date
Application number
PCT/KR2019/012030
Other languages
French (fr)
Korean (ko)
Inventor
김석일
Original Assignee
(주)에이텍티앤
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 (주)에이텍티앤 filed Critical (주)에이텍티앤
Publication of WO2020226237A1 publication Critical patent/WO2020226237A1/en

Links

Images

Classifications

    • 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
    • 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
    • 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
    • B60R16/005—Electro-mechanical devices, e.g. switched
    • 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
    • B60R16/023—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 transmission of signals between vehicle parts or subsystems

Definitions

  • the present invention relates to a power stabilization device in an electrical system, and in particular, a state in which power of the system is stably supplied according to the start-on signal of the vehicle to protect the electrical system from overvoltage/overvoltage, and the system is stabilized according to the start-off signal. It relates to a power stabilization device in an electric field system to promote system stabilization by cutting off the power supply at
  • a vehicle In general, a vehicle (automotive) has various electric equipment inside, and an electric system for supplying electricity is provided for such electric equipment.
  • a vehicle is a system that uses a DC power of a battery as an operating power source, and an excessive surge voltage, an overvoltage, etc. higher than the rated voltage may be momentarily or continuously introduced due to operation of a starting motor, a short circuit, or connection of an additional battery.
  • overvoltage blocking circuit receives a voltage input through input terminals P1 and P2 and detects an overvoltage to generate an overvoltage control signal from the overvoltage detection unit.
  • an overvoltage cutoff circuit comprising an overvoltage cutoff unit configured to cut off power supplied through the input terminal P1 by an output overvoltage control signal.
  • the Republic of Korea Patent Registration 10-1058303 (registered on August 12, 2011, overvoltage blocking device) is a first smoothing circuit unit for smoothing and outputting a source power provided from a battery or an alternator, and a connection between the first smoothing circuit unit and electrical equipment.
  • a source power output from the first smoothing circuit unit is provided to the electronic devices, detects whether the source power is overvoltage, and cuts off the source power when the source power is overvoltage.
  • the prior art as described above is a method of limiting the supply voltage to not rise above a specific voltage by using a constant voltage device or a Darlington transistor when there is an overvoltage or overvoltage in the voltage supplied to the battery system and the electric system. If the ignition key is turned off, there is a disadvantage that the system at the rear end cannot be stabilized.
  • the present invention has been proposed to solve the problems occurring in the prior art as described above, and protects the electric system from overvoltage/overvoltage by stably supplying power to the system according to the start-on signal of the vehicle, and start-off.
  • the present invention relates to a power stabilization device in an electric field system in which the system is stabilized according to a signal, and the supply power is cut off to promote system stabilization.
  • the "power stabilization device in the electric field system” includes: an ignition key; A start signal detection unit that generates a start key on motion detection signal when the ignition key is turned on and simultaneously supplies switching power and cuts off the switching power when the ignition key is turned off; When the start-on signal is detected by the start-up signal detection unit, the start-on signal is recognized and a power stabilization control signal for supplying system power is generated, and when the start-on signal transitions to a start-off signal, the power stabilization control signal is previously A control unit that cuts off a system power supply by blocking a power stabilization control signal after maintaining for a predetermined period of time; A power supply operation unit that generates a power supply signal with a switching power generated by the start signal detection unit or a power stabilization control signal generated by the control unit; A power stabilization unit configured to maintain and output power output from the battery below a specific power according to a power supply signal generated by the power supply operation unit; And a DC/DC converter converting the DC power
  • FIG. 1 is a circuit diagram of a power stabilization device in an electrical system according to the present invention
  • FIGS. 2A to 2D are operation timing diagrams of the power stabilization device in the present invention.
  • FIG. 3 is a power waveform diagram (transient voltage cutoff) when a power stabilizing device is used in the electronic system of the present invention.
  • FIG. 1 is a circuit diagram of a power stabilization device in an electrical system according to a preferred embodiment of the present invention, when a battery 10, an ignition key 20, and the ignition key 20 are turned on, the ignition key ON operation is detected. It generates a signal and supplies switching power at the same time, and includes a start signal detection unit 30 that cuts off the switching power when the ignition key 20 is turned off.
  • the ignition signal detection unit 30 includes a photo coupler 30 that generates a ignition key-on motion detection signal with power output from the battery 10 when the ignition key 20 is turned on.
  • the photocoupler 30 is a circuit that electrically separates input and output by emitting light with input power to generate a signal as light and to generate a signal from a secondary side to a photo transistor.
  • the power stabilization device recognizes the start-on signal when a start-on signal is detected by the start-up signal detection unit 30 and generates a power stabilization control signal for supplying system power.
  • a controller 40 configured to cut off system power supply by blocking the power stabilization control signal after maintaining the power stabilization control signal for a predetermined period of time when the start-on signal transitions to the start-off signal.
  • This control unit 40 is implemented as a main controller (MCU) or a central processing unit (CPU), includes a pull-up resistor for detecting the operation of the ignition key, and power according to the detection of the operation of the ignition key. Outputs a stabilization control signal in a high state, and maintains the power stabilization control signal in a high state to maintain power for a certain time for system stabilization according to the detection of the ignition key off operation.
  • the system power is turned off by transitioning the stabilization control signal to a low state (LOW).
  • the power stabilization device is a power supply operation unit that generates a power supply signal with a switching power generated by the start signal detection unit 30 or a power stabilization control signal generated by the control unit 40 Includes 50.
  • the power stabilization device maintains and outputs power output from the battery 10 below a specific power according to a power supply signal generated by the power supply operation unit 50 ( 60), and a DC/DC converter 70 that converts the DC power output from the power stabilization unit 60 into an arbitrary DC power and supplies it to the control unit 40 and the electric system of the rear stage.
  • the power stabilization unit 60 removes the overvoltage and the transient voltage of the power output from the battery 10 in accordance with the power supply signal generated by the power supply operation unit 50, and maintains the power below a specific power supply.
  • Darlington transistor Q1 may be included.
  • the Darlington transistor also serves to amplify the current.
  • the object to which the present invention is applied is a vehicle, and if the user operates the ignition key 20 in the on state based on the timing diagram of FIG. 2, that is, the contact a and the contact b using a switch
  • the ignition signal detection unit 30 When is connected, the ignition signal detection unit 30 generates a ignition key ON operation detection signal as shown in FIG. 2B while maintaining the ignition key on state and supplies switching power at the same time. That is, the starting signal detection unit 30 is composed of a photocoupler 31, and when power is supplied through the ignition key 20, a current flows through the photodiode on the primary side to supply switching power to the power supply operation unit 50.
  • the controller 40 recognizes that a start-on signal is detected by the start-up signal detection unit 30.
  • the control unit 40 When the start-on signal is detected, the control unit 40 generates a power stabilization control signal POWER_CONTROL as a high signal to the power supply operation unit 50.
  • the power supply operation unit 50 generates a power supply signal using the switching power generated by the start signal detection unit 30 or a power stabilization control signal generated by the control unit 40.
  • the power supply operation unit 50 emits light when a current flows from the photocoupler 51 to the photodiode on the primary side by switching power generated by the start signal detection unit 30 to generate a signal as light.
  • the phototransistor of the side passes the voltage applied to the collector terminal to the emitter terminal when light is received.
  • the power stabilization unit 60 performs a turn-on operation with a constant voltage applied to the base terminal of the Darlington transistor Q1, and maintains the power supplied from the battery 10 below a specific power supply to the DC/DC converter 70 ).
  • the power stabilization unit 60 also serves to amplify the current by using the Darlington transistor, but removes the overvoltage and the transient voltage of the power output from the battery 10 and maintains it below a specific power supply to stabilize the power.
  • 3 is an example of a state in which the power stabilization unit 60 blocks an excessive voltage.
  • the DC/DC converter 70 converts the DC power output from the power stabilization unit 60 into an arbitrary DC power supply (refer to FIG. 2D) and supplies it to the control unit 40 and the electric system of the rear stage.
  • the power input to the ignition signal detection unit 30 is cut off, so that no current flows through the photodiode of the photo coupler 31. Therefore, the photo transistor on the secondary side is also turned off because no light is received.
  • the voltage applied to the pull-up resistor configured in the control unit 40 remains high, so the ignition key off operation detection signal in the high state as shown in FIG. 2B.
  • the ignition key off operation detection signal transitions from a low state to a high state.
  • the ignition key off operation detection signal transitioned to the high state becomes an interrupt and the controller 40 recognizes that the ignition key is off.
  • the control unit 40 When it is recognized that the ignition key is off, the control unit 40 outputs a power stabilization control signal currently output for stabilization of the system power in a high state as shown in FIG. 2C to the power supply operation unit 50 with a power stabilization control signal ( POWER_CONTROL) is maintained for a predetermined period of time.
  • POWER_CONTROL a power stabilization control signal
  • the power supply operation unit 50 is in a state in which the switching power is cut off due to the turn-off of the start signal detection unit 30, or the photocoupler 51 by a power stabilization control signal in a high state generated by the control unit 40. ), a current flows through the photodiode on the primary side to emit light, and a signal is generated as light.
  • the phototransistor on the secondary side passes a voltage applied to the collector terminal to the emitter terminal when light is received.
  • the power stabilization unit 60 performs a turn-on operation with a constant voltage applied to the base terminal of the Darlington transistor Q1, and maintains the power supplied from the battery 10 below a specific power supply to the DC/DC converter 70 ).
  • the power stabilization unit 60 also serves to amplify the current by using the Darlington transistor, but removes the overvoltage and the transient voltage of the power output from the battery 10 and maintains it below a specific power supply to stabilize the power.
  • the DC/DC converter 70 converts the DC power output from the power stabilization unit 60 into an arbitrary DC power supply (refer to FIG. 2D) and supplies it to the control unit 40 and the electric system of the rear stage.
  • the control unit 40 does not generate the power stabilization control circuit. Accordingly, the power supply operation unit 50 also stops operating, the power stabilization unit 60 is also turned off, and the system power is also turned off.
  • the present invention seeks to stabilize the system power by blocking overvoltage or overvoltage by a combination of the power supply operation unit 50 and the power stabilization unit 60 when the ignition key is turned on, and the ignition key is turned off.
  • the control unit 40 the system power is supplied as it is for a predetermined period of time set in advance, and the system power is shut off after data storage or other electronic system processing operations are completed, so that the system can be stably operated.
  • the present invention is applied to a technology for stabilizing a system by cutting off a supply power in a state in which the system is stabilized in an electric system of a vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

The present invention relates to a power stabilization device in an electrical system which stably supplies power of a system according to a starting signal of a vehicle to protect the electrical system from over voltage/transient voltage, and blocks the supply of power while the system is stabilized according to a stopping signal so as to achieve stabilization of the system. The power stabilization is achieved in an electrical system of a vehicle by controlling a system power supply with the processes of: recognizing a starting signal and generating a power stabilization control signal for the system power supply when the starting signal is detected by a starting signal detection unit; and maintaining the power stabilization control signal for a predetermined period and blocking the power stabilization control signal when the starting signal is transitioned to the stopping signal.

Description

전장시스템에서 전원 안정화장치Power stabilization device in electric system
본 발명은 전장시스템에서 전원 안정화장치에 관한 것으로, 특히 차량의 시동 온 신호에 따라 시스템의 전원을 안정적으로 공급하여 과전압/과도전압으로부터 전장시스템을 보호하고, 시동 오프 신호에 따라 시스템을 안정화시킨 상태에서 공급 전원을 차단하여 시스템의 안정화를 도모하도록 한 전장시스템에서 전원 안정화장치에 관한 것이다.The present invention relates to a power stabilization device in an electrical system, and in particular, a state in which power of the system is stably supplied according to the start-on signal of the vehicle to protect the electrical system from overvoltage/overvoltage, and the system is stabilized according to the start-off signal. It relates to a power stabilization device in an electric field system to promote system stabilization by cutting off the power supply at
일반적으로 차량(자동차)은 내부의 다양한 전장품들이 존재하며, 이러한 전장품에는 전기를 공급하는 전기시스템이 마련되어 있다.In general, a vehicle (automotive) has various electric equipment inside, and an electric system for supplying electricity is provided for such electric equipment.
특히, 차량은 배터리의 직류전원을 동작 전원으로 사용하는 시스템으로서, 시동모터 동작 또는 누전 혹은 추가 배터리 연결 등에 의해 정격전압보다 높은 과고 서지 전압, 과전압 등이 순간적 또는 지속적으로 유입될 수 있다.In particular, a vehicle is a system that uses a DC power of a battery as an operating power source, and an excessive surge voltage, an overvoltage, etc. higher than the rated voltage may be momentarily or continuously introduced due to operation of a starting motor, a short circuit, or connection of an additional battery.
전장시스템의 전원 입력에 과도 서지 전압, 과전압 등이 유입될 경우 그 시스템은 파손되는 문제가 있으며, 차량과 같이 인명이 탑승하는 시스템에서 전장시스템의 파손은 인명이 사상되는 대형 사고를 유발할 수 있다.When a transient surge voltage or an overvoltage is introduced into the power input of an electrical system, the system is damaged, and in a system where people are on board, such as a vehicle, damage to the electrical system can cause a major accident in which people are killed.
따라서 전기시스템에 전원 공급 또는 차단시 유입되는 과도 서지 전압 및 과전압을 차단하여 안정적으로 시스템을 보호할 필요가 있으며, 이러한 요구에 따라 아래와 같은 종래기술이 제안되었다.Therefore, it is necessary to stably protect the system by blocking the transient surge voltage and the overvoltage introduced when power is supplied to or cut off the electric system, and the following prior art has been proposed in accordance with this request.
대한민국 공개특허 특1998-041211(1998.08.17. 공개, 회로 보호용 정전압원 제어회로)는 제1 트랜지스터의 에미터단에 베이스단이 연결되고, 접지단에 에미터단이 연결되며, 제1 트랜지스터(Q1)의 콜렉터단에 소정의 저항을 거쳐 콜렉터단이 연결된 제3 트랜지스터, 상기 제3 트랜지스터의 콜렉터단에 베이스단이 연결되고, 제1 트랜지스터의 베이스단에 콜렉터단이 연결되며, 접지단에 에미터단이 연결된 제4 트랜지스터를 구비하여 회로 보호용 정전압원 제어회로를 구현한다. 이러한 구성을 통해 2차측의 전원단이 접지단과 쇼트 되었을 때 1차 전원공급원도 보호할 수 있다.Republic of Korea Patent Publication No. 1998-041211 (published on August 17, 1998, constant voltage source control circuit for circuit protection) has a base terminal connected to the emitter terminal of the first transistor, the emitter terminal connected to the ground terminal, and the first transistor (Q1) The third transistor is connected to the collector terminal of the collector terminal via a predetermined resistance, the base terminal is connected to the collector terminal of the third transistor, the collector terminal is connected to the base terminal of the first transistor, and the emitter terminal is connected to the ground terminal. The connected fourth transistor is provided to implement a constant voltage source control circuit for circuit protection. Through this configuration, it is possible to protect the primary power supply when the secondary power terminal is shorted to the ground terminal.
또한, 대한민국 공개특허 특1998-046091(1998.09.15. 공개, 과전압 차단회로)는 입력단 P1, P2를 통해 입력되는 전압을 입력받아 과전압을 검출하여 과전압 제어신호를 발생하는 과전압 검출부, 상기 과전압 검출부로부터 출력된 과전압 제어신호에 의해 상기 입력단 P1을 통해 공급되는 전원을 차단하는 과전압 차단부로 구성된 과전압 차단회로를 제공한다. 이러한 구성을 통해, 전원장치에서 입력되는 전압을 검출하여 설정된 전압이상의 과전압이 검출될 시 DC-DC 레귤레이터로 공급되는 전압을 차단하므로, DC-DC 레귤레이터의 손상을 방지할 수 있는 동시에 DC-DC 레귤레이터에 연결된 회로를 과전압으로부터 보호할 수 있다.In addition, the Republic of Korea Patent Application Publication No. 1998-046091 (published on September 15, 1998, overvoltage blocking circuit) receives a voltage input through input terminals P1 and P2 and detects an overvoltage to generate an overvoltage control signal from the overvoltage detection unit. There is provided an overvoltage cutoff circuit comprising an overvoltage cutoff unit configured to cut off power supplied through the input terminal P1 by an output overvoltage control signal. Through this configuration, it detects the voltage input from the power supply and cuts off the voltage supplied to the DC-DC regulator when an overvoltage exceeding the set voltage is detected, preventing damage to the DC-DC regulator and at the same time preventing the DC-DC regulator. The circuit connected to can be protected from overvoltage.
또한, 대한민국 등록특허 10-1058303(2011.08.12. 등록, 과전압 차단장치)는 배터리 또는 교류발전기로부터 제공되는 소스전원을 평활하여 출력하는 제1평활회로부, 상기 제1평활회로부와 전장품들 사이에 연결되어 상기 제1평활회로부에서 출력되는 소스전원이 상기 전장품들로 제공하고, 상기 소스전원이 과전압인지를 검출하고, 과전압이면 상기 소스전원을 차단하는 과전압 차단부를 포함한다. 이러한 구성을 통해, 배터리와 교류발전기의 출력단에 스파크 등에 의한 과전압 발생 시 과전압이 포함된 소스전원을 차단하여 레귤레이터 및 전장품들을 과전압으로부터 보호할 수 있다.In addition, the Republic of Korea Patent Registration 10-1058303 (registered on August 12, 2011, overvoltage blocking device) is a first smoothing circuit unit for smoothing and outputting a source power provided from a battery or an alternator, and a connection between the first smoothing circuit unit and electrical equipment. And a source power output from the first smoothing circuit unit is provided to the electronic devices, detects whether the source power is overvoltage, and cuts off the source power when the source power is overvoltage. Through this configuration, when an overvoltage occurs due to a spark or the like at the output terminals of the battery and the alternator, the source power including the overvoltage can be cut off, thereby protecting the regulator and electrical equipment from overvoltage.
그러나 상기와 같은 종래기술들은 전지시스템 및 전장시스템에 공급되는 전압에 과도 전압이나 과전압이 존재할 경우 정전압기나 달링턴 트랜지스터를 이용하여 공급 전압이 특정 전압 이상으로 올라가지 못하도록 제한하는 방식으로서, 차량과 같은 시스템에서 시동키가 오프될 경우 후단의 시스템을 안정화하지 못하는 단점이 있다.However, the prior art as described above is a method of limiting the supply voltage to not rise above a specific voltage by using a constant voltage device or a Darlington transistor when there is an overvoltage or overvoltage in the voltage supplied to the battery system and the electric system. If the ignition key is turned off, there is a disadvantage that the system at the rear end cannot be stabilized.
특히, 전장시스템에서 메모리와 같은 장치를 사용할 경우 시동키 오프에 따라 공급 전원이 순식간에 차단됨으로써, 미처 처리 정보를 저장하지 못하거나 시스템을 안정화하지 못한 상태에서 전원 차단으로 해당 동작이 현재 상태에서 갑작스럽게 중지되어 시스템이 불안정해지는 단점이 있다.In particular, when a device such as a memory is used in an electric system, the power supply is instantly cut off when the ignition key is turned off, so that the operation is abruptly in the current state due to power cut off when processing information cannot be stored or the system is not stabilized. There is a drawback that the system is unstable due to a sudden stop.
따라서 본 발명은 상기와 같은 종래기술에서 발생하는 제반 문제점을 해결하기 위해서 제안된 것으로서, 차량의 시동 온 신호에 따라 시스템의 전원을 안정적으로 공급하여 과전압/과도전압으로부터 전장시스템을 보호하고, 시동 오프 신호에 따라 시스템을 안정화시킨 상태에서 공급 전원을 차단하여 시스템의 안정화를 도모하도록 한 전장시스템에서 전원 안정화장치에 관한 것이다.Therefore, the present invention has been proposed to solve the problems occurring in the prior art as described above, and protects the electric system from overvoltage/overvoltage by stably supplying power to the system according to the start-on signal of the vehicle, and start-off. The present invention relates to a power stabilization device in an electric field system in which the system is stabilized according to a signal, and the supply power is cut off to promote system stabilization.
상기한 바와 같은 목적을 달성하기 위하여, 본 발명에 따른 "전장시스템에서 전원 안정화장치"는, 시동키; 상기 시동키의 온 동작시 시동키 온 동작 감지 신호를 발생함과 동시에 스위칭 전원을 공급해주고, 상기 시동키의 오프 동작시 상기 스위칭 전원을 차단하는 시동신호 감지부; 상기 시동신호 감지부에 의해 시동 온 신호가 감지되면 시동 온 신호를 인지하고 시스템 전원 공급을 위한 전원 안정화 제어신호를 발생하며, 상기 시동 온 신호가 시동 오프 신호로 천이되면 상기 전원 안정화 제어신호를 미리 설정된 일정시간 동안 유지한 후 전원 안정화 제어신호를 차단하여 시스템 전원 공급을 차단하는 제어부; 상기 시동신호 감지부에 의해 발생한 스위칭 전원 또는 상기 제어부에서 발생하는 전원 안정화 제어신호로 전원 공급 신호를 발생하는 전원공급 동작부; 상기 전원공급 동작부에 의해 발생한 전원 공급 신호에 따라 배터리에서 출력되는 전원을 특정 전원 이하로 유지시켜 출력하는 전원 안정화부; 상기 전원 안정화부에서 출력되는 직류 전원을 임의의 직류 전원으로 변환하여 상기 제어부 및 후단의 전장 시스템에 공급하는 직류/직류 컨버터를 포함하는 것을 특징으로 한다.In order to achieve the above object, the "power stabilization device in the electric field system" according to the present invention includes: an ignition key; A start signal detection unit that generates a start key on motion detection signal when the ignition key is turned on and simultaneously supplies switching power and cuts off the switching power when the ignition key is turned off; When the start-on signal is detected by the start-up signal detection unit, the start-on signal is recognized and a power stabilization control signal for supplying system power is generated, and when the start-on signal transitions to a start-off signal, the power stabilization control signal is previously A control unit that cuts off a system power supply by blocking a power stabilization control signal after maintaining for a predetermined period of time; A power supply operation unit that generates a power supply signal with a switching power generated by the start signal detection unit or a power stabilization control signal generated by the control unit; A power stabilization unit configured to maintain and output power output from the battery below a specific power according to a power supply signal generated by the power supply operation unit; And a DC/DC converter converting the DC power output from the power stabilizing unit into an arbitrary DC power supply and supplying the DC power to the control unit and the rear electric system.
본 발명에 따르면 차량의 시동 온 신호에 따라 시스템의 전원을 안정적으로 공급하여 과전압/과도전압으로부터 전장시스템을 보호할 수 있는 장점이 있다.According to the present invention, there is an advantage of stably supplying power to the system according to the start-on signal of the vehicle, thereby protecting the electric system from overvoltage/overvoltage.
또한, 시동 오프 신호에 따라 시스템을 안정화시킨 상태에서 공급 전원을 차단하여 시스템의 안정화도 도모할 수 있는 효과가 있다.In addition, there is an effect of stabilizing the system by shutting off the supply power while the system is stabilized according to the start-off signal.
도 1은 본 발명에 따른 전장시스템에서 전원 안정화장치의 회로도,1 is a circuit diagram of a power stabilization device in an electrical system according to the present invention,
도 2a 내지 도 2d는 본 발명에서 전원 안정화장치의 동작 타이밍도,2A to 2D are operation timing diagrams of the power stabilization device in the present invention,
도 3은 본 발명의 전장시스템에서 전원 안정화장치를 이용한 경우의 전원 파형도(과도전압 차단)이다.3 is a power waveform diagram (transient voltage cutoff) when a power stabilizing device is used in the electronic system of the present invention.
이하 본 발명의 바람직한 실시 예에 따른 전장시스템에서 전원 안정화장치를 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, a power stabilization device in an electrical system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명의 바람직한 실시 예에 따른 전장시스템에서 전원 안정화장치의 회로도로서, 배터리(10), 시동키(20), 상기 시동키(20)의 온(on) 동작시 시동키 온 동작 감지 신호를 발생함과 동시에 스위칭 전원을 공급해주고, 상기 시동키(20)의 오프 동작시 상기 스위칭 전원을 차단하는 시동신호 감지부(30)를 포함한다.1 is a circuit diagram of a power stabilization device in an electrical system according to a preferred embodiment of the present invention, when a battery 10, an ignition key 20, and the ignition key 20 are turned on, the ignition key ON operation is detected. It generates a signal and supplies switching power at the same time, and includes a start signal detection unit 30 that cuts off the switching power when the ignition key 20 is turned off.
여기서 시동신호 감지부(30)는 상기 시동키(20) 온시 배터리(10)에서 출력되는 전원으로 시동키 온 동작 감지 신호를 발생하는 포토커플러(Photo Coupler)(30)로 구성된다. 여기서 포토커플러(30)는 입력 전원으로 발광을 하여 신호를 빛으로 발생하고 이차측에서 광 트랜지스터로 신호를 발생하는 방식으로 입력과 출력을 전기적으로 분리된 회로이다.Here, the ignition signal detection unit 30 includes a photo coupler 30 that generates a ignition key-on motion detection signal with power output from the battery 10 when the ignition key 20 is turned on. Here, the photocoupler 30 is a circuit that electrically separates input and output by emitting light with input power to generate a signal as light and to generate a signal from a secondary side to a photo transistor.
또한, 본 발명에 따른 전장시스템에서 전원 안정화장치는 상기 시동신호 감지부(30)에 의해 시동 온(on) 신호가 감지되면 시동 온 신호를 인지하고 시스템 전원 공급을 위한 전원 안정화 제어신호를 발생하며, 상기 시동 온 신호가 시동 오프 (off) 신호로 천이되면 상기 전원 안정화 제어신호를 미리 설정된 일정시간 동안 유지한 후 전원 안정화 제어신호를 차단하여 시스템 전원 공급을 차단하는 제어부(40)를 포함한다.In addition, in the electric system according to the present invention, the power stabilization device recognizes the start-on signal when a start-on signal is detected by the start-up signal detection unit 30 and generates a power stabilization control signal for supplying system power. And a controller 40 configured to cut off system power supply by blocking the power stabilization control signal after maintaining the power stabilization control signal for a predetermined period of time when the start-on signal transitions to the start-off signal.
이러한 제어부(40)는 메인 커트롤러(MCU) 또는 중앙처리장치(CPU)로 구현되며, 시동키 동작 감지를 위한 풀-업(PULL-UP) 저항을 포함하고, 시동키 온 동작 감지에 따라 전원 안정화 제어신호를 하이상태(HIGH)로 출력하고, 상기 시동키 오프 동작 감지에 따라 시스템 안정화를 위해 일정시간 동안 전원 유지를 위해 상기 전원 안정화 제어신호를 하이상태로 유지하다가 상기 일정 시간이 지나면 상기 전원 안정화 제어신호를 로우상태(LOW)로 천이시켜 시스템 전원을 오프한다.This control unit 40 is implemented as a main controller (MCU) or a central processing unit (CPU), includes a pull-up resistor for detecting the operation of the ignition key, and power according to the detection of the operation of the ignition key. Outputs a stabilization control signal in a high state, and maintains the power stabilization control signal in a high state to maintain power for a certain time for system stabilization according to the detection of the ignition key off operation. The system power is turned off by transitioning the stabilization control signal to a low state (LOW).
또한, 본 발명에 따른 전장시스템에서 전원 안정화장치는 상기 시동신호 감지부(30)에 의해 발생한 스위칭 전원 또는 상기 제어부(40)에서 발생하는 전원 안정화 제어신호로 전원 공급 신호를 발생하는 전원공급 동작부(50)를 포함한다.In addition, in the electrical system according to the present invention, the power stabilization device is a power supply operation unit that generates a power supply signal with a switching power generated by the start signal detection unit 30 or a power stabilization control signal generated by the control unit 40 Includes 50.
이러한 전원공급 동작부(50)는 상기 시동신호 감지부(30)에 의해 발생한 스위칭 전원 또는 상기 제어부(40)에서 발생하는 전원 안정화 제어신호로 전원 공급 신호를 발생하는 포토커플러(51), 상기 포토커플러(51)의 2차측에서 출력되는 전원 공급 신호를 일정 레벨의 정전압(VZD = 34V)으로 만들어 출력하는 제너 다이오드(Zener Diode)(52)를 포함한다.The power supply operation unit 50 includes a photo coupler 51 generating a power supply signal using a switching power generated by the start signal detection unit 30 or a power stabilization control signal generated by the control unit 40, and the photocoupler 51 It includes a Zener diode 52 that converts a power supply signal output from the secondary side of the coupler 51 to a constant voltage (V ZD = 34V) and outputs it.
또한, 본 발명에 따른 전장시스템에서 전원 안정화장치는 상기 전원공급 동작부(50)에 의해 발생한 전원 공급 신호에 따라 배터리(10)에서 출력되는 전원을 특정 전원 이하로 유지시켜 출력하는 전원 안정화부(60), 상기 전원 안정화부(60)에서 출력되는 직류 전원을 임의의 직류 전원으로 변환하여 상기 제어부(40) 및 후단의 전장 시스템에 공급하는 직류/직류 컨버터(70)를 포함한다.In addition, in the electrical system according to the present invention, the power stabilization device maintains and outputs power output from the battery 10 below a specific power according to a power supply signal generated by the power supply operation unit 50 ( 60), and a DC/DC converter 70 that converts the DC power output from the power stabilization unit 60 into an arbitrary DC power and supplies it to the control unit 40 and the electric system of the rear stage.
상기 전원 안정화부(60)는 상기 전원공급 동작부(50)에 의해 발생한 전원 공급 신호에 따라 배터리(10)에서 출력되는 전원의 과전압 및 과도전압을 제거하여 특정 전원 이하로 유지시켜 출력하는 달링턴(Darlington) 트랜지스터(Q1)를 포함할 수 있다. 여기서 달링턴 트랜지스터는 전류를 증폭하는 역할도 한다.The power stabilization unit 60 removes the overvoltage and the transient voltage of the power output from the battery 10 in accordance with the power supply signal generated by the power supply operation unit 50, and maintains the power below a specific power supply. Darlington) transistor Q1 may be included. Here, the Darlington transistor also serves to amplify the current.
이와 같이 구성된 본 발명에 따른 전장시스템에서 전원 안정화장치의 동작을 구체적으로 설명하면 다음과 같다.The operation of the power stabilization device in the electronic system according to the present invention configured as described above will be described in detail as follows.
먼저, 본 발명이 적용되는 대상을 차량이라고 가정을 하고, 도 2의 타이밍도를 기준으로 사용자가 시동키(20)를 온(on) 상태로 조작하면 즉, 스위치를 이용하여 접점 a와 접점 b를 접속시키면, 시동신호 감지부(30)는 상기 시동키가 온 상태를 유지하는 동안 도 2b와 같이 시동키 온 동작 감지 신호를 발생함과 동시에 스위칭 전원을 공급해준다. 즉, 시동신호 감지부(30)는 포토커플러(31)로 구성되어, 상기 시동키(20)를 통해 전원이 공급되면 1차측의 포토다이오드로 전류가 흘러 스위칭 전원을 전원공급 동작부(50)에 공급함과 동시에 발광을 하여 신호를 빛으로 발생하고, 이때 이차 측의 광 트랜지스터는 수광이 이루어지면 제어부(40)에 구성된 풀-업 저항(pull-up resistor)에 걸린 전압을 접지로 흘려 도 2b와 같이 로우상태의 시동키 온 동작 감지신호(KEY_DETECT)를 발생한다.First, it is assumed that the object to which the present invention is applied is a vehicle, and if the user operates the ignition key 20 in the on state based on the timing diagram of FIG. 2, that is, the contact a and the contact b using a switch When is connected, the ignition signal detection unit 30 generates a ignition key ON operation detection signal as shown in FIG. 2B while maintaining the ignition key on state and supplies switching power at the same time. That is, the starting signal detection unit 30 is composed of a photocoupler 31, and when power is supplied through the ignition key 20, a current flows through the photodiode on the primary side to supply switching power to the power supply operation unit 50. When the light is received by the phototransistor on the secondary side, when the light is received, the voltage applied to the pull-up resistor configured in the control unit 40 flows to the ground, and Fig. 2b Likewise, a low-state ignition key ON operation detection signal (KEY_DETECT) is generated.
상기 제어부(40)는 상기 풀-업 저항에 걸린 하이 전위가 로우 전위로 천이되면 상기 시동신호 감지부(30)에 의해 시동 온 신호가 감지되는 것으로 인지를 한다. 상기 제어부(40)는 시동 온 신호가 감지되면 전원공급 동작부(50)에 전원 안정화 제어신호(POWER_CONTROL)를 하이신호로 발생한다.When the high potential applied to the pull-up resistor transitions to a low potential, the controller 40 recognizes that a start-on signal is detected by the start-up signal detection unit 30. When the start-on signal is detected, the control unit 40 generates a power stabilization control signal POWER_CONTROL as a high signal to the power supply operation unit 50.
다음으로, 전원공급 동작부(50)는 상기 시동신호 감지부(30)에 의해 발생한 스위칭 전원 또는 상기 제어부(40)에서 발생하는 전원 안정화 제어신호로 전원 공급 신호를 발생한다. 여기서 전원공급 동작부(50)는 포토커플러(51)에서 상기 시동신호 감지부(30)에 의해 발생한 스위칭 전원으로 1차측의 포토다이오드로 전류가 흐르면 발광을 하여 신호를 빛으로 발생하고, 이때 이차 측의 광 트랜지스터는 수광이 이루어지면 컬렉터단에 걸린 전압을 에미터단으로 흘린다. 에미터단으로 흐르는 전압은 제너 다이오드(52)에 의해 일정 레벨의 정전압(VZD = 34V)으로 전원 안정화부(60)에 인가된다.Next, the power supply operation unit 50 generates a power supply signal using the switching power generated by the start signal detection unit 30 or a power stabilization control signal generated by the control unit 40. Here, the power supply operation unit 50 emits light when a current flows from the photocoupler 51 to the photodiode on the primary side by switching power generated by the start signal detection unit 30 to generate a signal as light. The phototransistor of the side passes the voltage applied to the collector terminal to the emitter terminal when light is received. The voltage flowing to the emitter terminal is applied to the power stabilization unit 60 at a constant level (V ZD = 34V) by the Zener diode 52.
상기 전원 안정화부(60)는 달링턴 트랜지스터(Q1)의 베이스단에 인가되는 정전압으로 턴-온 동작을 하고, 상기 배터리(10)에서 공급되는 전원을 특정 전원 이하로 유지시켜 직류/직류 컨버터(70)에 출력한다. 여기서 전원 안정화부(60)는 달링턴 트랜지스터를 이용함으로써 전류를 증폭하는 역할도 하지만, 배터리(10)에서 출력되는 전원의 과전압 및 과도전압을 제거하여 특정 전원 이하로 유지시켜 전원 안정화를 도모한다. 도 3은 상기 전원 안정화부(60)에서 과도 전압을 차단하는 상태 예시이다.The power stabilization unit 60 performs a turn-on operation with a constant voltage applied to the base terminal of the Darlington transistor Q1, and maintains the power supplied from the battery 10 below a specific power supply to the DC/DC converter 70 ). Here, the power stabilization unit 60 also serves to amplify the current by using the Darlington transistor, but removes the overvoltage and the transient voltage of the power output from the battery 10 and maintains it below a specific power supply to stabilize the power. 3 is an example of a state in which the power stabilization unit 60 blocks an excessive voltage.
이어, 직류/직류 컨버터(70)는 상기 전원 안정화부(60)에서 출력되는 직류 전원을 임의의 직류 전원(도 2d 참조)으로 변환하여 상기 제어부(40) 및 후단의 전장 시스템에 공급한다.Subsequently, the DC/DC converter 70 converts the DC power output from the power stabilization unit 60 into an arbitrary DC power supply (refer to FIG. 2D) and supplies it to the control unit 40 and the electric system of the rear stage.
다음으로, 사용자가 시동키(20)를 오프하면, 시동신호 감지부(30)에 입력되는 전원은 차단되고, 이에 따라 포토 커플러(31)의 포토다이오드로는 전류가 흐르지 않게 된다. 따라서 이차측의 포토 트랜지스터도 빛이 수신되지 않아 턴-오프로 전환한다. 포토 트랜지스터가 턴-오프 상태로 천이하면, 제어부(40)에 구성된 풀-업 저항(pull-up resistor)에 걸린 전압은 하이상태를 그대로 유지하므로 도 2b와 같이 하이상태의 시동키 오프 동작 감지신호(KEY_DETECT)를 발생한다. 즉, 시동키 오프 동작 감지신호는 로우상태에서 하이상태로 천이하게 된다. 이렇게 하이상태로 천이된 시동키 오프 동작 감지신호는 결과적으로 인터럽트가 되어 제어부(40)는 시동키가 오프된 것을 인지한다.Next, when the user turns off the ignition key 20, the power input to the ignition signal detection unit 30 is cut off, so that no current flows through the photodiode of the photo coupler 31. Therefore, the photo transistor on the secondary side is also turned off because no light is received. When the photo transistor transitions to the turn-off state, the voltage applied to the pull-up resistor configured in the control unit 40 remains high, so the ignition key off operation detection signal in the high state as shown in FIG. 2B. Generates (KEY_DETECT). That is, the ignition key off operation detection signal transitions from a low state to a high state. As a result, the ignition key off operation detection signal transitioned to the high state becomes an interrupt and the controller 40 recognizes that the ignition key is off.
시동키가 오프된 것으로 인지되면, 제어부(40)는 시스템 전원 안정화를 위해 현재 출력하고 있는 전원 안정화 제어신호를 도 2c와 같이 하이상태로 출력하여 전원공급 동작부(50)에 전원 안정화 제어신호(POWER_CONTROL)를 미리 설정된 일정시간 유지한다.When it is recognized that the ignition key is off, the control unit 40 outputs a power stabilization control signal currently output for stabilization of the system power in a high state as shown in FIG. 2C to the power supply operation unit 50 with a power stabilization control signal ( POWER_CONTROL) is maintained for a predetermined period of time.
이때, 전원공급 동작부(50)는 상기 시동신호 감지부(30)의 오프에 따라 스위칭 전원이 차단된 상태이나, 상기 제어부(40)에서 발생한 하이상태의 전원 안정화 제어신호에 의해 포토커플러(51)의 1차 측 포토다이오드로 전류가 흘러 발광을 하여 신호를 빛으로 발생한다. 그리고 이차 측의 광 트랜지스터는 수광이 이루어지면 컬렉터단에 걸린 전압을 에미터단으로 흘린다. 에미터단으로 흐르는 전압은 제너 다이오드(52)에 의해 일정 레벨의 정전압(VZD = 34V)으로 전원 안정화부(60)에 인가된다.At this time, the power supply operation unit 50 is in a state in which the switching power is cut off due to the turn-off of the start signal detection unit 30, or the photocoupler 51 by a power stabilization control signal in a high state generated by the control unit 40. ), a current flows through the photodiode on the primary side to emit light, and a signal is generated as light. In addition, the phototransistor on the secondary side passes a voltage applied to the collector terminal to the emitter terminal when light is received. The voltage flowing to the emitter terminal is applied to the power stabilization unit 60 at a constant level (V ZD = 34V) by the Zener diode 52.
상기 전원 안정화부(60)는 달링턴 트랜지스터(Q1)의 베이스단에 인가되는 정전압으로 턴-온 동작을 하고, 상기 배터리(10)에서 공급되는 전원을 특정 전원 이하로 유지시켜 직류/직류 컨버터(70)에 출력한다. 여기서 전원 안정화부(60)는 달링턴 트랜지스터를 이용함으로써 전류를 증폭하는 역할도 하지만, 배터리(10)에서 출력되는 전원의 과전압 및 과도전압을 제거하여 특정 전원 이하로 유지시켜 전원 안정화를 도모한다.The power stabilization unit 60 performs a turn-on operation with a constant voltage applied to the base terminal of the Darlington transistor Q1, and maintains the power supplied from the battery 10 below a specific power supply to the DC/DC converter 70 ). Here, the power stabilization unit 60 also serves to amplify the current by using the Darlington transistor, but removes the overvoltage and the transient voltage of the power output from the battery 10 and maintains it below a specific power supply to stabilize the power.
이어, 직류/직류 컨버터(70)는 상기 전원 안정화부(60)에서 출력되는 직류 전원을 임의의 직류 전원(도 2d 참조)으로 변환하여 상기 제어부(40) 및 후단의 전장 시스템에 공급한다.Subsequently, the DC/DC converter 70 converts the DC power output from the power stabilization unit 60 into an arbitrary DC power supply (refer to FIG. 2D) and supplies it to the control unit 40 and the electric system of the rear stage.
이후 미리 설정된 시간(커패시터를 사용할 경우, 충전 용량)이 지나면 제어부(40)는 상기 전원 안정화 제어회로를 발생하지 않는다. 이로써 전원공급 동작부(50)도 동작을 하지 않게 되고, 전원 안정화부(60)도 오프 상태가 되어, 시스템 전원도 오프 상태가 된다. Thereafter, when a preset time (in case of using a capacitor, charging capacity) elapses, the control unit 40 does not generate the power stabilization control circuit. Accordingly, the power supply operation unit 50 also stops operating, the power stabilization unit 60 is also turned off, and the system power is also turned off.
이와 같이 본 발명은 시동키가 온되는 상황에서는 전원공급 동작부(50)와 전원 안정화부(60)의 조합으로 과도 전압이나 과전압을 차단하여 시스템 전원의 안정화를 도모하고, 시동키가 오프되는 상황에서는 제어부(40)에서 미리 설정된 일정 시간 동안 시스템 전원을 그대로 공급을 유지하여 데이터 저장이나 기타 전장시스템의 처리 동작을 완료한 후 시스템 전원을 차단하도록 하여, 시스템을 안정적으로 운영할 수 있게 되는 것이다.As described above, the present invention seeks to stabilize the system power by blocking overvoltage or overvoltage by a combination of the power supply operation unit 50 and the power stabilization unit 60 when the ignition key is turned on, and the ignition key is turned off. In the control unit 40, the system power is supplied as it is for a predetermined period of time set in advance, and the system power is shut off after data storage or other electronic system processing operations are completed, so that the system can be stably operated.
이상 본 발명자에 의해서 이루어진 발명을 상기 실시 예에 따라 구체적으로 설명하였지만, 본 발명은 상기 실시 예에 한정되는 것은 아니고 그 요지를 이탈하지 않는 범위에서 여러 가지로 변경 가능한 것은 이 기술분야에서 통상의 지식을 가진 사람에게 자명하다 할 것이다.Although the invention made by the present inventor has been described in detail according to the above embodiment, the present invention is not limited to the above embodiment, and it is common knowledge in the art that various changes can be made without departing from the gist of the invention. It will be self-evident to someone who has.
본 발명은 차량의 전장시스템에서 시스템을 안정화시킨 상태에서 공급 전원을 차단하여 시스템의 안정화를 도모하는 기술에 적용된다.The present invention is applied to a technology for stabilizing a system by cutting off a supply power in a state in which the system is stabilized in an electric system of a vehicle.

Claims (5)

  1. 전장시스템에서 시동키의 온/오프에 따라 과도전압 및 과전압을 차단하여 시스템 전원을 안정화하기 위한 장치로서,As a device for stabilizing system power by blocking overvoltage and overvoltage according to the ON/OFF of the ignition key in the electric system,
    시동키의 온 동작시 시동키 온 동작 감지 신호를 발생함과 동시에 배터리 전원을 이용하여 스위칭 전원을 공급해주고, 상기 시동키의 오프 동작시 상기 스위칭 전원을 차단하는 시동신호 감지부;A start signal detection unit that generates a start key on motion detection signal when the ignition key is turned on, supplies switching power using battery power, and cuts off the switching power when the ignition key is turned off;
    상기 시동신호 감지부에 의해 시동 온 신호가 감지되면 시동 온 신호를 인지하고 시스템 전원 공급을 위한 전원 안정화 제어신호를 발생하며, 상기 시동 온 신호가 시동 오프 신호로 천이되면 상기 전원 안정화 제어신호를 미리 설정된 일정시간 동안 유지한 후 전원 안정화 제어신호를 차단하여 시스템 전원 공급을 차단하는 제어부;When the start-on signal is detected by the start-up signal detection unit, the start-on signal is recognized and a power stabilization control signal for supplying system power is generated, and when the start-on signal transitions to a start-off signal, the power stabilization control signal is previously A control unit that cuts off a system power supply by blocking a power stabilization control signal after maintaining for a predetermined period of time;
    상기 시동신호 감지부에 의해 발생한 스위칭 전원 또는 상기 제어부에서 발생하는 전원 안정화 제어신호로 전원 공급 신호를 발생하는 전원공급 동작부;A power supply operation unit that generates a power supply signal with a switching power generated by the start signal detection unit or a power stabilization control signal generated by the control unit;
    상기 전원공급 동작부에 의해 발생한 전원 공급 신호에 따라 배터리에서 출력되는 전원을 특정 전원 이하로 유지시켜 출력하는 전원 안정화부; 및A power stabilization unit configured to maintain and output power output from the battery below a specific power according to a power supply signal generated by the power supply operation unit; And
    상기 전원 안정화부에서 출력되는 직류 전원을 임의의 직류 전원으로 변환하여 상기 제어부 및 후단의 전장 시스템에 공급하는 직류/직류 컨버터를 포함하는 것을 특징으로 하는 전장시스템에서 전원 안정화장치.And a DC/DC converter converting the DC power output from the power stabilizing unit into an arbitrary DC power and supplying it to the control unit and a rear electric system.
  2. 청구항 1에서, 상기 시동신호 감지부는 상기 시동키 온시 배터리에서 출력되는 전원으로 시동키 온 동작 감지 신호를 발생하는 포토커플러로 구성된 것을 특징으로 하는 전장시스템에서 전원 안정화장치.The power stabilization apparatus of claim 1, wherein the ignition signal detection unit is configured with a photocoupler that generates an ignition key on motion detection signal with power output from a battery when the ignition key is turned on.
  3. 청구항 1에서, 상기 제어부는 시동키 동작 감지를 위한 풀-업 저항을 포함하고, 시동키 온 동작 감지에 따라 전원 안정화 제어신호를 하이상태로 출력하고, 상기 시동키 오프 동작 감지에 따라 시스템 안정화를 위해 일정시간 동안 전원 유지를 위해 상기 전원 안정화 제어신호를 하이상태로 유지하다가 상기 일정 시간이 지나면 상기 전원 안정화 제어신호를 로우상태로 천이시켜 시스템 전원을 오프하는 것을 특징으로 하는 전장시스템에서 전원 안정화장치.In claim 1, wherein the control unit includes a pull-up resistor for detecting the operation of the ignition key, outputs a power stabilization control signal in a high state according to the detection of the operation of the ignition key on, and stabilizes the system according to the detection of the operation of the ignition key off. In order to maintain power for a certain period of time, the power stabilization control signal is maintained in a high state for a certain period of time, and the power stabilization control signal is turned to a low state after the certain period of time to turn off the system power. .
  4. 청구항 1에서, 상기 전원공급 동작부는 상기 시동신호 감지부에 의해 발생한 스위칭 전원 또는 상기 제어부에서 발생하는 전원 안정화 제어신호로 전원 공급 신호를 발생하는 포토커플러; 상기 포토커플러에서 출력되는 전원 공급 신호를 일정 레벨의 정전압으로 만들어 출력하는 제너 다이오드를 포함하는 것을 특징으로 하는 전장시스템에서 전원 안정화장치.The power supply operation unit of claim 1, wherein the power supply operation unit comprises: a photocoupler for generating a power supply signal using switching power generated by the starting signal detection unit or a power stabilization control signal generated by the control unit; And a Zener diode that converts the power supply signal output from the photocoupler into a constant voltage of a predetermined level and outputs it.
  5. 청구항 1에서, 상기 전원 안정화부는 상기 전원공급 동작부에 의해 발생한 전원 공급 신호에 따라 배터리에서 출력되는 전원의 과전압 및 과도전압을 제거하여 특정 전원 이하로 유지시켜 출력하는 달링턴 트랜지스터를 포함하는 것을 특징으로 하는 전장시스템에서 전원 안정화장치.The method of claim 1, wherein the power stabilization unit comprises a Darlington transistor that removes overvoltage and transient voltage of the power output from the battery according to a power supply signal generated by the power supply operation unit, and maintains it below a specific power supply. Power stabilization device in the electrical system.
PCT/KR2019/012030 2019-05-03 2019-09-18 Power stabilization device in electrical system WO2020226237A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190051977A KR102224405B1 (en) 2019-05-03 2019-05-03 Power control device in electric field system
KR10-2019-0051977 2019-05-03

Publications (1)

Publication Number Publication Date
WO2020226237A1 true WO2020226237A1 (en) 2020-11-12

Family

ID=73051551

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/012030 WO2020226237A1 (en) 2019-05-03 2019-09-18 Power stabilization device in electrical system

Country Status (2)

Country Link
KR (1) KR102224405B1 (en)
WO (1) WO2020226237A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940019762U (en) * 1993-01-19 1994-08-22 오현웅 Vehicle voltage regulator circuit
JP2007181374A (en) * 2005-12-28 2007-07-12 Denso Corp Operation controller of electronic equipment for automobile
KR100789975B1 (en) * 2006-10-31 2008-01-02 화남전자 주식회사 Circuit for providing electric power use for vehicle's electronic control unit
KR20130057886A (en) * 2011-11-24 2013-06-03 현대모비스 주식회사 Power control apparatus
US20140375118A1 (en) * 2013-06-21 2014-12-25 GM Global Technology Operations LLC Smart power distribution unit
KR20170011337A (en) * 2015-07-22 2017-02-02 삼성전기주식회사 Driving circuit for Hybrid Electric Vehicle and Controlling method thereof
KR101928040B1 (en) * 2017-06-27 2018-12-11 김인수 Auxiliary power supply device and its method for a vehicle electronics

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980041211A (en) 1996-11-30 1998-08-17 김광호 Constant Voltage Source Control Circuit for Circuit Protection
KR19980046091A (en) 1996-12-11 1998-09-15 김광호 Overvoltage Breaker Circuit
KR101058303B1 (en) 2009-05-20 2011-08-22 한국오므론전장주식회사 Overvoltage Breaker

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940019762U (en) * 1993-01-19 1994-08-22 오현웅 Vehicle voltage regulator circuit
JP2007181374A (en) * 2005-12-28 2007-07-12 Denso Corp Operation controller of electronic equipment for automobile
KR100789975B1 (en) * 2006-10-31 2008-01-02 화남전자 주식회사 Circuit for providing electric power use for vehicle's electronic control unit
KR20130057886A (en) * 2011-11-24 2013-06-03 현대모비스 주식회사 Power control apparatus
US20140375118A1 (en) * 2013-06-21 2014-12-25 GM Global Technology Operations LLC Smart power distribution unit
KR20170011337A (en) * 2015-07-22 2017-02-02 삼성전기주식회사 Driving circuit for Hybrid Electric Vehicle and Controlling method thereof
KR101928040B1 (en) * 2017-06-27 2018-12-11 김인수 Auxiliary power supply device and its method for a vehicle electronics

Also Published As

Publication number Publication date
KR102224405B1 (en) 2021-03-08
KR20200127576A (en) 2020-11-11

Similar Documents

Publication Publication Date Title
US6154081A (en) Load circuit having extended reverse voltage protection
KR20000006660A (en) Data protection recepatacles for power saving
AU742234B2 (en) Device for setting the output voltage in a three-phase alternator
US9438100B2 (en) Non-transformer isolated DC-DC power supply including shut down circuit
US8416593B2 (en) Switching power supply with over-current protection and electronic device using the same
WO2020226237A1 (en) Power stabilization device in electrical system
US7800249B1 (en) Power supply system
US6442050B2 (en) Protection circuit and method for switching power supply
US9832836B2 (en) Drive circuit for illuminating device and illuminating device having the drive circuit
US7005832B2 (en) Device for a battery charger
KR100573994B1 (en) Voltage control apparatus for vehicle generator
KR102380003B1 (en) Apparatus for protecting circuit by controlling battery relay of construction equipment
WO2016052796A1 (en) Apparatus for stabilising output power
JP2007049786A (en) Rush current suppressing circuit
CN215835130U (en) A switch board fault protection system for intelligence tally
EP4343997A1 (en) Electronic device and method for protecting equipment from voltage surge damage
CN211880081U (en) Intrinsic safety type power supply circuit and intrinsic safety type communication network equipment
CN109994924B (en) Solid-state light source driving device and projection apparatus
KR20180066685A (en) Communication system for battery pack and battery pack including the same
KR20070119207A (en) Power supply
KR100425287B1 (en) Apparatus for intercepting overvoltage with mobile-telecommunication terminal
KR19980046091A (en) Overvoltage Breaker Circuit
SU1191901A1 (en) Power source with protection
SU1679476A1 (en) Three-chanel stabilizing d c voltage source with alternate channel switch-on and switch-off
KR100848156B1 (en) Motor power control circuit

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19928120

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19928120

Country of ref document: EP

Kind code of ref document: A1