KR960028353A

KR960028353A - TV receiver power supply

Info

Publication number: KR960028353A
Application number: KR1019940039659A
Authority: KR
Inventors: 이정우
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1994-12-31
Filing date: 1994-12-31
Publication date: 1996-07-22

Abstract

본 발명은 텔레비젼 수상기의 전원장치에 설치되는 FBT가 이상 발진을 행하는 경우, 텔레비젼 수상기로 인가되는 AC전원을 근원적으로 자동차단할 수 있도록 된 텔레비젼 수상기의 전원장치에 관한 것으로, 전원부를 포함한 장치 전반을 제어부와 장치 전반의 각 구성요소에 동작전원을 공급함과 더불어 수평출력을 보정하기 위한 AFC신호를 출력하는 플라이백 변성기(FBT)를 갖춘 텔레비젼 수상기의 전원장치에 있어서, 상기 플라이백 변성기로부터 출력되는 AFC신호를 적분하는 적분회로, FBT정상동작시의 AFC출력을 근거로 한 기준전위를 자체로 설정하고 있음으로써, 상기 적분회로에서 출력된 적분값이 이 기준전압과 다른 경우 하이레벨의 검지신호를 출력하는 전압비교부, 이 전압비교부의 출력레벨과 상기 제어부로부터 출력되는 전원부 제어신호가 모두 하이레벨인 경우 온(ON)구동되는 스위칭부를 포함하여 구성되고, 상기 제어부는 상기 스위칭부의 온(ON)/오프(OFF)에 따라 상기 전원단속부를 단속하는 것을 특징으로 한다.The present invention relates to a power supply of a television receiver that is capable of fundamentally shutting off AC power applied to a television receiver when an FBT installed in a power receiver of a television receiver performs abnormal oscillation. And a power supply of a television receiver having a flyback transformer (FBT) for outputting an AFC signal for correcting a horizontal output and for supplying operating power to each component of the overall device, wherein the AFC signal outputted from the flyback transformer By setting the reference potential based on the AFC output during the FBT normal operation by itself as an integrating circuit for integrating the circuit, if the integral value output from the integrating circuit is different from this reference voltage, a high level detection signal is output. The voltage comparator, the output level of the voltage comparator and the power supply control signal output from the controller When all of the high level is configured to include a switching unit (ON) driven, the control unit is characterized in that to control the power interruption unit in accordance with the ON (ON) / OFF (OFF) of the switching unit.

Description

TV receiver power supply

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

제2도는 본 발명의 1실시예의 따른 텔레비젼 수상기 전원장치의 요부구성을 나타낸 블럭구성도.2 is a block diagram showing the main components of a television receiver power supply apparatus according to an embodiment of the present invention;

Claims

A power supply for a television receiver having a flyback transformer (FBT) for outputting an AFC signal for correcting a horizontal output while supplying operating power to the control unit and each component of the device as a whole. The integrating circuit for integrating the AFC signal output from the back transformer and the reference potential based on the AFC output during FBT normal operation are set to itself, so that when the integral value output from the integrating circuit is different from this reference voltage, A voltage comparator for outputting a detection signal of a level; and a switching part for driving on when the output level of the voltage comparator and the power supply control signal output from the control part are all at a high level. A power receiver for a television receiver, characterized in that the power interrupter is interrupted in accordance with ON / OFF.

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