KR950007408A - Overvoltage Protection and Indicators - Google Patents

Overvoltage Protection and Indicators Download PDF

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Publication number
KR950007408A
KR950007408A KR1019930017011A KR930017011A KR950007408A KR 950007408 A KR950007408 A KR 950007408A KR 1019930017011 A KR1019930017011 A KR 1019930017011A KR 930017011 A KR930017011 A KR 930017011A KR 950007408 A KR950007408 A KR 950007408A
Authority
KR
South Korea
Prior art keywords
overvoltage
voltage
allowable value
output circuit
supplied
Prior art date
Application number
KR1019930017011A
Other languages
Korean (ko)
Other versions
KR970008369B1 (en
Inventor
박경동
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.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019930017011A priority Critical patent/KR970008369B1/en
Publication of KR950007408A publication Critical patent/KR950007408A/en
Application granted granted Critical
Publication of KR970008369B1 publication Critical patent/KR970008369B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/18—Generation of supply voltages, in combination with electron beam deflecting
    • H04N3/19—Arrangements or assemblies in supply circuits for the purpose of withstanding high voltages

Abstract

본 발명은 과전압 보호 및 표시장치에 관한 것으로서, 종래의 경우 전원 출력회로에서 부하 변동으로 인해 전압 발생부(5)에서 출력회로 과전압이 허용치 이상이 되면 주변 시스템의 회로소자와 수상관 등이 파괴되거나 제품의 수명이 단축되는 단점을 해결하기 위해 본 발명은 과전압이 허용치 이상일 때 자동으로 전원 공급을 차단하고 발광소자를 점등시켜 시청자에게 허용치 이상 전압임을 쉽게 인지할 수 있도록 하는데 그 목적을 두고 있다.The present invention relates to an overvoltage protection and a display device. In the related art, when an output circuit overvoltage exceeds the allowable value in the voltage generator 5 due to a load change in a power output circuit, a circuit element and a water pipe of a peripheral system are destroyed or the like. In order to solve the disadvantage that the life of the product is shortened, the present invention is intended to automatically cut off the power supply when the overvoltage exceeds the allowable value and to turn on the light emitting device so that the viewer can easily recognize that the voltage exceeds the allowable value.

상기의 목적을 달성하기 위해 전원 출력회로에서 출력되는 과전압을 검출하는 과전압 검출부, 시스템에 과전압 공급여부를 외부로 표시하는 과전압 표시부, 입력전원을 온/오프 하도록 릴레이단을 제어하는 릴레이 구동부로 구성되어 시스템에 공급되는 과전압이 허용치 이상일 때 입력전압을 자동으로 차단하고 발광 소자를 점등시켜 외부에 표시할 수 있는 효과가 있다.In order to achieve the above object, it consists of an overvoltage detector for detecting an overvoltage output from a power output circuit, an overvoltage indicator for indicating whether overvoltage is supplied to the system externally, and a relay driver for controlling a relay stage to turn on / off input power. When the overvoltage supplied to the system is over the allowable value, the input voltage is automatically cut off and the light emitting device is turned on to display the externally.

Description

과전압 보호 및 표시장치Overvoltage Protection and Indicators

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

제1도는 선행 기술에 의해 제작된 텔레비젼의 전원 출력회로를 나타낸 블럭도,1 is a block diagram showing a power output circuit of a television produced by the prior art;

제2도는 본 발명에 의한 텔레비젼의 과전압 보호 및 표시장치를 나타낸 도면이다.2 is a diagram showing an overvoltage protection and display device for a television according to the present invention.

Claims (3)

전원 출력회로에서 출력되어 시스템에 공급되는 전압과 설정된 기준 전압을 비교하여 그 비교 결과 과전압일 때 소정의 제어신호를 출력하는 과전압 검출부와, 상기 과전압 검출부에서 출력되는 제어신호에 의해 작동되어 시스템에 과전압 검출 여부를 외부로 표시하는 과전압 표시부와, 상기 과전압 표시부에서 출력되는 제어신호에 의해 작동되어 전원출력회로에 입력되는 전원을 공급 및 차단하도록 릴레이단을 제어하는 릴레이 구동부로 구성됨을 특징으로 하는 과전압 보호 및 표시장치.It is operated by an overvoltage detector which compares the voltage output from the power output circuit and supplied to the system with the set reference voltage and outputs a predetermined control signal when the voltage is overvoltage, and is operated by the control signal output from the overvoltage detector. Overvoltage protection, characterized in that it is composed of an overvoltage display unit for displaying whether or not to be detected externally, and a relay driver controlling the relay stage to supply and cut off power input to a power output circuit operated by a control signal output from the overvoltage display unit. And display. 제1항에 있어서, 상기 과전압 검출부(10)는 기준 전압(Vref1)과 시스템에 공급되는 전압을 비교하는 비교기(COMP2)로 구성됨을 특징으로 하는 과전압 보호 및 표시장치.2. The overvoltage protection and display device of claim 1, wherein the overvoltage detector (10) comprises a comparator (COMP2) for comparing a reference voltage (Vref1) with a voltage supplied to the system. 제1항에 있어서, 상기 과전압 표시부(20)는 비교기(COMP2)에서 출력되는 제어신호의 레벨에 따라 점등 및 소등하는 발광소자(LED1)와 스위칭소자(TR1-TR2) 및 저항(R1-R4)으로 구성됨을 특징으로 하는 과전압 보호 및 표시장치.The light emitting device (LED1), the switching device (TR1-TR2) and the resistors (R1-R4) of claim 1, wherein the overvoltage display unit 20 is turned on and off according to the level of the control signal output from the comparator COMP2. Overvoltage protection and display device characterized in that consisting of. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임※ Note: The disclosure is based on the initial application.
KR1019930017011A 1993-08-30 1993-08-30 Over-voltage protection and display device KR970008369B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019930017011A KR970008369B1 (en) 1993-08-30 1993-08-30 Over-voltage protection and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019930017011A KR970008369B1 (en) 1993-08-30 1993-08-30 Over-voltage protection and display device

Publications (2)

Publication Number Publication Date
KR950007408A true KR950007408A (en) 1995-03-21
KR970008369B1 KR970008369B1 (en) 1997-05-23

Family

ID=19362287

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930017011A KR970008369B1 (en) 1993-08-30 1993-08-30 Over-voltage protection and display device

Country Status (1)

Country Link
KR (1) KR970008369B1 (en)

Also Published As

Publication number Publication date
KR970008369B1 (en) 1997-05-23

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