KR970024481A - Switching Power Compensation Circuit of Composite Video Equipment - Google Patents

Switching Power Compensation Circuit of Composite Video Equipment Download PDF

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Publication number
KR970024481A
KR970024481A KR1019950039488A KR19950039488A KR970024481A KR 970024481 A KR970024481 A KR 970024481A KR 1019950039488 A KR1019950039488 A KR 1019950039488A KR 19950039488 A KR19950039488 A KR 19950039488A KR 970024481 A KR970024481 A KR 970024481A
Authority
KR
South Korea
Prior art keywords
voltage
switching power
compensation circuit
output
composite video
Prior art date
Application number
KR1019950039488A
Other languages
Korean (ko)
Inventor
노관형
Original Assignee
배순훈
대우전자 주식회사
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 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019950039488A priority Critical patent/KR970024481A/en
Publication of KR970024481A publication Critical patent/KR970024481A/en

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Abstract

본 발명은 부하변동에 많은 복합영상기기에 있어서, 부하변동이 있을 때마다 이를 감지하여 자동으로 입력 전압비를 제어해주는 스위칭 전원의 회로에 관한 것이다. 본 발명에 의하면 부하변동이 생길때마다 이를 릴레이 및 트랜지스터가 감지하여 미리 설정된 전압과 비교하여 그 차이값을 스위칭 모드 전원공급회로에 알리기 때문에 입려 전압의 세기를 조절할 수 있다. 따라서 방송모드 변동에 따라 발생하는 부하변동에 따른 전압변동을 신속히 제어할 수 있는 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit of a switching power supply that detects a load variation and automatically controls an input voltage ratio in a complex video device having a lot of load variation. According to the present invention, whenever the load fluctuation occurs, the relay and the transistor sense and compare with the preset voltage and inform the switching mode power supply circuit so that the intensity of the applied voltage can be adjusted. Therefore, it is possible to quickly control the voltage fluctuations caused by the load fluctuations caused by the broadcast mode fluctuations.

Description

복합 영상기기의 스위칭 전원 보상회로Switching Power Compensation Circuit of Composite Video Equipment

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 종래의 스위칭 전원 보상회로,1 is a conventional switching power supply compensation circuit,

제2도는 본 발명에 따른 스위칭 전원 보상회로2 is a switching power supply compensation circuit according to the present invention.

Claims (1)

입력되는 교류전압을 펄스폭의 레벨값에 상응하는 직류전압으로 변환하여 출력하는 스위칭모드 전압변환부, 상기 스위칭 모드 전압변환부에서 출력되는 직류전압의 세기를 제어하는 제1 전압변환부, 상기 제1전압변환부에 인가된 전압신호에 대응하는 변환된 전압을 출력하기 위한 제2 전압변환부, 상기 제2전압변환부의 출력측에 연결되어 상기 제2전압변환부에서 출력되는 전압레벨값과 미리 설정된 전압레벨값을 비교하여, 그 전압차이값을 상기 스위칭 모드 전압변환부로 출력하는 오차검출부, 상기 제2전압변환부의 출력에 일정레벨 이상 또는 이하의 부하가 걸렸을 때, 상기 오차 검출부에서 상기 스위칭 또는 전압 오차제어부로 구성된 것을 특징으로 하는 복합 영상기기의 스위칭 전원 보상회로.A switching mode voltage converting unit converting an input AC voltage into a DC voltage corresponding to a level value of a pulse width, and outputting the first voltage converting unit controlling the strength of the DC voltage output from the switching mode voltage converting unit; A second voltage converter for outputting a converted voltage corresponding to a voltage signal applied to the one voltage converter, a voltage level value connected to an output side of the second voltage converter and output from the second voltage converter, and preset The error detection unit for comparing the voltage level value and outputting the voltage difference value to the switching mode voltage converter, when the output of the second voltage converter is above a certain level or less than the predetermined level, the error detector Switching power compensation circuit of a composite video device, characterized in that consisting of an error control unit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950039488A 1995-10-31 1995-10-31 Switching Power Compensation Circuit of Composite Video Equipment KR970024481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950039488A KR970024481A (en) 1995-10-31 1995-10-31 Switching Power Compensation Circuit of Composite Video Equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950039488A KR970024481A (en) 1995-10-31 1995-10-31 Switching Power Compensation Circuit of Composite Video Equipment

Publications (1)

Publication Number Publication Date
KR970024481A true KR970024481A (en) 1997-05-30

Family

ID=66586997

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950039488A KR970024481A (en) 1995-10-31 1995-10-31 Switching Power Compensation Circuit of Composite Video Equipment

Country Status (1)

Country Link
KR (1) KR970024481A (en)

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