KR950009699A - Overvoltage blocking circuit of vehicle mounted VCR - Google Patents

Overvoltage blocking circuit of vehicle mounted VCR Download PDF

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Publication number
KR950009699A
KR950009699A KR1019930020234A KR930020234A KR950009699A KR 950009699 A KR950009699 A KR 950009699A KR 1019930020234 A KR1019930020234 A KR 1019930020234A KR 930020234 A KR930020234 A KR 930020234A KR 950009699 A KR950009699 A KR 950009699A
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KR
South Korea
Prior art keywords
voltage
overvoltage
zener diode
circuit
vcr
Prior art date
Application number
KR1019930020234A
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Korean (ko)
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KR960007957B1 (en
Inventor
이경원
김을제
Original Assignee
배순훈
대우전자 주식회사
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.)
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Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR93020234A priority Critical patent/KR960007957B1/en
Publication of KR950009699A publication Critical patent/KR950009699A/en
Application granted granted Critical
Publication of KR960007957B1 publication Critical patent/KR960007957B1/en

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus

Abstract

본 발명은 차량에 전원을 연결할 때 DC 전압이 과전압이면 이를 검출하여 기기에 걸리는 과전압을 차단하는 차량 장착용 VCR의 과전압 차단 회로에 관한 것으로, 입력되는 DC전압을 일정한 전압으로 변화시켜 출력하는 정전압 회로와, DC입력 전압이 소정 전압 이상이면 이를 검출하는 과전압 검출부와, 상기 과전압 검출부의 출력에 따라 상기 정전압 회로의 출력을 제어하는 제어부로 구성되어, 과전압으로 인해 발생하는 부품의 파괴 및 전체 시스템의 고장을 방지하도록 한 것이다.The present invention relates to an overvoltage blocking circuit of a vehicle-mounted VCR that detects when a DC voltage is an overvoltage and cuts off an overvoltage applied to a device when the power supply is connected to a vehicle. And an overvoltage detector for detecting the DC input voltage when the voltage is higher than a predetermined voltage, and a controller for controlling the output of the constant voltage circuit according to the output of the overvoltage detector. It is to prevent.

Description

차량 장착용 브이씨알(VCR)의 과전압 차단 회로Overvoltage blocking circuit of vehicle mounted VCR

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 전원 공급 회로를 나타낸 단순 블럭도,1 is a simple block diagram showing a conventional power supply circuit,

제2도는 본 발명에 따른 차량 장착용 VCR의 과전압 차단 회로의 단순 블럭도,2 is a simple block diagram of an overvoltage blocking circuit of a vehicle-mounted VCR according to the present invention;

제3도는 제2도의 과전압 검출부의 상세 회로도.3 is a detailed circuit diagram of the overvoltage detector of FIG.

Claims (3)

입력되는 DC전압을 일정한 전압으로 변화시켜 출력하는 정전압 회로와; DC입력 전압이 소정 전압 이상일 경우 이를 검출하는 과전압 검출부와; 상기 과전압 검출부의 출력에 따라 상기 정전압 회로의 출력을 제어하는 제어부로 이루어지는 차량용 VCR의 과전압 차단회로.A constant voltage circuit for changing and outputting an input DC voltage to a constant voltage; An overvoltage detector for detecting a DC input voltage above a predetermined voltage; And a control unit for controlling the output of the constant voltage circuit in accordance with the output of the overvoltage detection unit. 제1항에 있어서, 상기 과전압 검출부는, 캐소드측이 상기 DC 이벽이 전압단에 연결되어 차단 전압을 결정하는 제너 다이오드와, 베이스측이 상기 제너 다이오드의 애노드측에 연결되고 콜렉터측이 상기 제어부에 연결되는 스위칭용 트랜지스터로 구성되는 차량 장착용 VCR의 과전압 차단 회로.The zener diode of claim 1, wherein a cathode side of the zener diode is connected to a voltage terminal to determine a cutoff voltage, a base side of the zener diode is connected to an anode side of the zener diode, and a collector side of the zener diode is connected to the controller. An overvoltage cut-off circuit of a vehicle mounted VCR consisting of a switching transistor connected. 제2항에 있어서, 상기 트랜지스터는, 베이스와 베이스-에미터 저항이 달린 저항 내장 트랜지스터로 이루어지는 차량 장착용 VCR의 과전압 차단회로.3. The overvoltage blocking circuit of the vehicle-mounted VCR of claim 2, wherein the transistor comprises a base and a transistor with a resistor with a base-emitter resistor. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR93020234A 1993-09-28 1993-09-28 Voltage cutting circuit of vcr for car KR960007957B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR93020234A KR960007957B1 (en) 1993-09-28 1993-09-28 Voltage cutting circuit of vcr for car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR93020234A KR960007957B1 (en) 1993-09-28 1993-09-28 Voltage cutting circuit of vcr for car

Publications (2)

Publication Number Publication Date
KR950009699A true KR950009699A (en) 1995-04-24
KR960007957B1 KR960007957B1 (en) 1996-06-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR93020234A KR960007957B1 (en) 1993-09-28 1993-09-28 Voltage cutting circuit of vcr for car

Country Status (1)

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KR (1) KR960007957B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8532409B2 (en) 2010-11-22 2013-09-10 Electronics And Telecommunications Research Institute Adaptive motion search range determining apparatus and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8532409B2 (en) 2010-11-22 2013-09-10 Electronics And Telecommunications Research Institute Adaptive motion search range determining apparatus and method

Also Published As

Publication number Publication date
KR960007957B1 (en) 1996-06-17

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