KR940001665A - Monitor screen adjustment circuit - Google Patents

Monitor screen adjustment circuit Download PDF

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Publication number
KR940001665A
KR940001665A KR1019920011362A KR920011362A KR940001665A KR 940001665 A KR940001665 A KR 940001665A KR 1019920011362 A KR1019920011362 A KR 1019920011362A KR 920011362 A KR920011362 A KR 920011362A KR 940001665 A KR940001665 A KR 940001665A
Authority
KR
South Korea
Prior art keywords
centering
frequency
voltage
screen
adjustment circuit
Prior art date
Application number
KR1019920011362A
Other languages
Korean (ko)
Inventor
문성학
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019920011362A priority Critical patent/KR940001665A/en
Publication of KR940001665A publication Critical patent/KR940001665A/en

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Abstract

본 발명은 모니터의 화면 보정회로에 관한 것으로, 일반적으로 사용되고 있는 기존의 화면 조정회로는 상기와 같은 회로는 가변저항에 의해 수평편향요크로 흐르는 전류를 제어하여 화면의 센터링을 조절하였으므로 화면의 조정이 어렵게 되고 파워의 소비가 매우 크게되며, 센터링 전압의 차가 주파수마다 심하게 되어 주파수에 따른 센터링의 가변 폭이 크게됨으로써 센터링이 잘 조정되지 않는 문제점이 있었다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen correction circuit of a monitor. In the conventional screen adjustment circuit, a circuit such as the above is used to adjust the screen centering by controlling a current flowing in a horizontal deflection yoke by a variable resistor. It becomes difficult and the power consumption is very large, the difference in the centering voltage is severe for each frequency, the variable width of the centering according to the frequency is large, there is a problem that the centering is not adjusted well.

이에 따라, 본 발명의 목적은 상기와 같은 기존의 화면 조정회로에 따르는 결함을 감안하여 수평동기신호의 주파수에 따라 편향요크로 흐르는 전류가 자동으로 제어되도록 하여 화면의 센터링이 정확히 설정되도록 하는 회로를 제공하는데 있다.Accordingly, an object of the present invention is to provide a circuit for accurately setting the centering of the screen by automatically controlling the current flowing in the deflection yoke according to the frequency of the horizontal synchronization signal in consideration of the defects caused by the existing screen adjustment circuit as described above. To provide.

Description

모니터의 화면 조정회로Monitor screen adjustment circuit

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

제2도는 본 발명에 따른 모니터의 화면 조정회로의 블록 구성도.2 is a block diagram of a screen adjustment circuit of a monitor according to the present invention.

제3도는 제2도의 상세 회로도.3 is a detailed circuit diagram of FIG.

Claims (1)

수평동기신호(보-SYNC)를 입력하여 주파수에 비례하는 전압을 발생시키는 주파수/전압 변환부(10)와, 상기 주파수/전압 변환부(10)의 출력 전압을 일정 기준전압(Vref)과 비교를 하여 그 차에 따른 전압을 중폭하여 출력하는 에러 중폭기 (11)와, 상기 에러 증폭기 (11)의 출력에 따라 구동되어 수평 편향요크(H. DY)에 대한 구동전류를 제어하는 전류 보정부(12)로 된 것을 특징으로 하는 모니터의 화면 조정회로.A frequency / voltage converter 10 for generating a voltage proportional to a frequency by inputting a horizontal synchronization signal (BO-SYNC) and an output voltage of the frequency / voltage converter 10 are compared with a predetermined reference voltage Vref. An error amplifier 11 that outputs the voltage according to the difference and outputs the voltage according to the difference, and a current correction unit that is driven according to the output of the error amplifier 11 to control the driving current for the horizontal deflection yoke DY. A screen adjustment circuit for a monitor, characterized in that (12). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920011362A 1992-06-27 1992-06-27 Monitor screen adjustment circuit KR940001665A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920011362A KR940001665A (en) 1992-06-27 1992-06-27 Monitor screen adjustment circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920011362A KR940001665A (en) 1992-06-27 1992-06-27 Monitor screen adjustment circuit

Publications (1)

Publication Number Publication Date
KR940001665A true KR940001665A (en) 1994-01-11

Family

ID=67296768

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920011362A KR940001665A (en) 1992-06-27 1992-06-27 Monitor screen adjustment circuit

Country Status (1)

Country Link
KR (1) KR940001665A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010094724A (en) * 2000-04-06 2001-11-01 구자홍 Method and apparatus for detecting error of monitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010094724A (en) * 2000-04-06 2001-11-01 구자홍 Method and apparatus for detecting error of monitor

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