KR960035216A

KR960035216A - Display tube stabilization circuit of the monitor

Info

Publication number: KR960035216A
Application number: KR1019950007200A
Authority: KR
Inventors: 박태길
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-03-31
Filing date: 1995-03-31
Publication date: 1996-10-24

Abstract

본 발명은 모니터에 관한 것으로, 보다 상세하게는 모니터의 디스플레이튜브에 전류를 공급하는 플라이백트랜스부(FBT)에서 이상 과전압이 발생하였을때 디스플레이튜브에 전류가 공급되지 않도록 이를 자동차단시키는 모니터의 디스플레이 튜브 안정화 회로에 관한 것이다.The present invention relates to a monitor, and more particularly, a display of a monitor which cuts off a current so that current is not supplied to a display tube when an abnormal overvoltage occurs in a flyback transformer unit (FBT) that supplies current to a display tube of a monitor. It relates to a tube stabilization circuit.

본 발명은 모니터의 고압발생부(FBT)에서 사용자가 모니터를 조절할때 발생되는 정상 상태의 고전압보다 큰 이상전압이 발생하였을 때, 즉시 이를 감지하여 자동전류제어부를 통해 전압가변부에 바이어스전압(Vcc)이 인가되지 않도록 차단시키므로서 디스플레이튜브에 구동신호가 인가되지 않게 하여 고전압으로부터 디스플레이튜브를 보호할 수 있게 된다.The present invention immediately detects when an abnormal voltage greater than the normal high voltage generated when the user adjusts the monitor in the high-voltage generating unit (FBT) of the monitor, and immediately detects the bias voltage (Vcc) in the voltage variable unit through the automatic current control unit. By blocking), the driving signal is not applied to the display tube, thereby protecting the display tube from high voltage.

Description

Display tube stabilization circuit of the monitor

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

제2도는 본 발명에 따른 모니터의 디스플레이 튜브 안정회로도.2 is a display tube stabilizer circuit diagram of a monitor according to the present invention.

Claims

A display tube for displaying an image according to the signal applied to the screen of the monitor, a high-pressure generator for generating a suitable high-voltage voltage supplied to each mode of the monitor, and detects the voltage of the high voltage generated from the high-pressure generator The video signal is controlled by a voltage divider for dividing the signal into voltages, an automatic current fisherman controlled by the signal applied from the voltage divider to supply a constant current to the voltage varying unit, and a current applied from the automatic current controller. A voltage variable unit for applying an operation signal to a processing unit, a photocoupler for on / off operation connected between the automatic current control unit and the voltage variable unit, and a port coupler connected to the port coupler to detect an abnormal signal generated by the high voltage generation unit. The monitor characterized in that the current supply control unit for controlling the operation of the photocoupler Display tube stabilization circuit.

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