KR960033017A

KR960033017A - Horizontal Size Adjustment Circuit and Method of Monitor

Info

Publication number: KR960033017A
Application number: KR1019950002314A
Authority: KR
Inventors: 임재섭
Original assignee: 배순훈; 대우전자 주식회사
Priority date: 1995-02-09
Filing date: 1995-02-09
Publication date: 1996-09-17

Abstract

본 발명은 모니터의 관한 것으로서, 특히 화면의 수평 사이즈를 입력되는 수평 주파수에 따라 자동으로 가변시킴으로써, 입력되는 다양한 수평 주파수에도 화질이 상승되는 모니터의 수평 사이즈 조정회로 및 방법에 관한 것이다. 이와 같은 본 발명은 입력되는 수평 주파수에 따라 수평 사이즈를 조정하기 위한 제어 신호가 출력되는 마이크로 프로세서(10)와, 상기 마이크로 프로세서(10)에서 출력되는 제어 제어 신호가 아날로그 신호로 변환되는 아날로그 변환부(20)와, 아날로그 변환부(20)에서 출력되는 제어 전압이 수평편향코일(HDy)에 인가되는 수위칭부(30)와, 수평편향코일(HDy)에 흐르는 전류를 전압으로 변환시키는 전압 변환부(40)와, 상기 전압 변환부(40)에서 출력되는 전압으로 디지털 신호로 변환되어 상기 마이크로 프로세서(10)에 인가된 후 제어 신호의 크기가 가변되는 디지털 변환부(50)로 구성된다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitor, and more particularly, to a horizontal size adjusting circuit and a method of a monitor, in which image quality is increased at various horizontal frequencies by automatically changing a horizontal size of a screen according to an input horizontal frequency. As described above, the present invention provides a microprocessor 10 that outputs a control signal for adjusting a horizontal size according to an input horizontal frequency, and an analog converter that converts a control control signal output from the microprocessor 10 into an analog signal. 20 and a voltage conversion unit for converting a current flowing through the horizontal deflection coil HDy into a voltage leveling unit 30 to which the control voltage output from the analog converter 20 is applied to the horizontal deflection coil HDy. And a digital conversion unit 50 which is converted into a digital signal by the voltage output from the voltage conversion unit 40 and applied to the microprocessor 10 and the control signal is changed in magnitude.

Description

Horizontal Size Adjustment Circuit and Method of Monitor

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

제1도는 일반적인 모니터의 수평사이즈 조정회로의 구성을 보인 도면1 is a diagram showing the configuration of a horizontal size adjustment circuit of a general monitor

제2도는 본 발명에 따른 모니터의 수평사이즈 조정회로의 구성을 보인 도면2 is a view showing the configuration of the horizontal size adjustment circuit of the monitor according to the present invention

제3도는 본 발명에 따른 모니터의 수평사이즈 조정 과정을 보인 흐름도.3 is a flowchart illustrating a horizontal size adjustment process of the monitor according to the present invention.

Claims

The microprocessor outputs a control signal for adjusting the horizontal size according to the input horizontal frequency, the analog converting means for converting the control signal output from the microprocessor into an analog signal, and the control voltage output from the analog converting means. Switching means for switching the control voltage applied to the horizontal deflection coil, voltage converting means for converting the current flowing in the horizontal deflection coil into a voltage, and converting the digital signal into a voltage output from the voltage converting means to the microprocessor. A horizontal size adjustment circuit of a monitor comprising digital converting means which is applied after being applied, compared with a set voltage, and whose magnitude of a control signal varies according to the result of the comparison.

A first process of reading the current value flowing in the modern horizontal deflection coil and converting it into a voltage and comparing the converted voltage value with the voltage and a preset stored voltage, and if the voltage value is greater than the stored set voltage in the first process, the control signal is made smaller. A method of adjusting the horizontal size of a monitor comprising a second process in which the control signal is largely changed and applied to the horizontal deflection coil when the voltage is smaller than the control voltage.

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