KR950010495A

KR950010495A - Overcurrent Protection Device for Television Receiver

Info

Publication number: KR950010495A
Application number: KR1019930020154A
Authority: KR
Inventors: 정명모
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1993-09-28
Filing date: 1993-09-28
Publication date: 1995-04-28

Abstract

본 발명은 텔레비젼 수상기에 갖추어진 플라이백 트랜스포머의 단락등에 의해 관전류가 발생하는 경우에 공급전원을 차단하도록 된 과전류 발생장치에 관한 것으로서, 주전원부(3)로부터 인가되는 동작전압(B+)과, 이 동작전원(B+)을 분압하여 생성한 ABL 전압에 따라 소정의 고전압을 생성하는 플라이백 트랜스포어(5)를 갖춘 텔레비젼수상기에 있어서, ABL 전류(I_ABL)의 양의 비례하는 레벨전압을 생성하는 전압생성 수단(R14)과, 이 전압생성 수단(R14)에 의해 생성된 레벨전압이 소정치 이상인지를 판정하는 전위판정 수단(ZD11), 상기 주전원부(3)로 공급되는 동작전원을 개폐하는 릴레이 수단(RY1), 상기 릴레이 수단(RY1)을 구동하는 릴레이 구동수단(Q11) 및, 상기 전위 판정수단(ZD11)에 의한 판정결과에 따라 상기 릴레이 구동수단(11)을 제어하는 마이크로 프로세서(11)를 포함하여 구성된 것을 특징으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overcurrent generator that cuts off the supply power when a tube current occurs due to a short circuit of a flyback transformer provided in a television receiver. A television receiver having a flyback transformer 5 that generates a predetermined high voltage in accordance with an ABL voltage generated by dividing an operating power source B +, wherein a positive proportional level voltage of the ABL current I _ABL is generated. Opening and closing the operation power supplied to the voltage generating means R14, the potential determining means ZD11 for determining whether or not the level voltage generated by the voltage generating means R14 is a predetermined value or more; Micro program for controlling the relay driving means 11 in accordance with the determination result by the relay means RY1, the relay driving means Q11 for driving the relay means RY1, and the potential determining means ZD11. Characterized in that comprises a taxer (11).

Description

Overcurrent Protection Device for Television Receiver

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

제2도는 본 발명의 1실시에에 따른 텔레비젼 수상기의 과전류 보호장치를 나타낸 회로 구성도.2 is a circuit diagram showing an overcurrent protection device for a television receiver according to one embodiment of the present invention.

Claims

A television receiver having an operating voltage B + applied from the main power supply unit 3 and a flyback transformer 5 that generates a predetermined high voltage according to the ABL voltage generated by dividing the operating power source B +. Voltage generation means R14 for generating a positive proportional level voltage of current I _ABL and potential determination means ZD11 for determining whether the level voltage generated by this voltage generation means R14 is equal to or greater than a predetermined value. Is determined by the relay means RY1 for opening and closing the operation power supplied to the main power supply section 3, the relay drive means Q11 for driving the relay means RY1, and the potential determination means ZD11. And a microprocessor (11) for controlling the relay driving means (11) according to the overcurrent protection device of the television receiver.

※ Note: The disclosure is based on the initial application.