KR900011099A - Overvoltage Protection Circuits for Switching Power Supplies - Google Patents

Overvoltage Protection Circuits for Switching Power Supplies Download PDF

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Publication number
KR900011099A
KR900011099A KR1019880018106A KR880018106A KR900011099A KR 900011099 A KR900011099 A KR 900011099A KR 1019880018106 A KR1019880018106 A KR 1019880018106A KR 880018106 A KR880018106 A KR 880018106A KR 900011099 A KR900011099 A KR 900011099A
Authority
KR
South Korea
Prior art keywords
power supplies
overvoltage protection
switching power
comparing
protection circuits
Prior art date
Application number
KR1019880018106A
Other languages
Korean (ko)
Inventor
박동훈
Original Assignee
안시환
삼성전자 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 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR1019880018106A priority Critical patent/KR900011099A/en
Publication of KR900011099A publication Critical patent/KR900011099A/en

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  • Protection Of Static Devices (AREA)

Abstract

내용 없음No content

Description

스위칭 파워 서플라이의 과전압 보호회로Overvoltage Protection Circuits for Switching Power Supplies

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

제2도는 본 발명의 회로도.2 is a circuit diagram of the present invention.

Claims (2)

트랜스(T1)와 일차측회로수단과 필터수단을 구비한 스위칭 파워 서플라이의 과전압 보호회로에 있어서, 상기 필터수단으로 부터 인가되는 제1,2전원으로 설정된 소정 기준전압과 이 제1, 2전원으로 디바이드된 전압을 비교 출력하는 비교수단과, 상기 비교수단의 출력에 따라 상기 트랜스(T1) 일차측 회로수단 동작을 제어하므로 과전압 발생시 제1, 2전원을 차단하는 전원 제어수단으로 구성함을 특징으로 하는 회로.An overvoltage protection circuit of a switching power supply comprising a transformer (T1), a primary side circuit means, and a filter means, comprising: a predetermined reference voltage set to the first and second power supplies applied from the filter means and the first and second power supplies; And comparing means for comparing the divided voltages and controlling the operation of the transformer (T1) primary-side circuit means in accordance with the output of the comparing means. Circuit. 제1항에 있어서, 비교수단이 제1, 2전원을 센싱하는 제너다이오드와, 상기 센싱전압과 디바이드 전압을 비교 출력하는 연산증폭기와, 상기 연산증폭기의 출력에 따라 도통 및 차단하는 제어수단으로 구성함을 특징으로 하는 스위칭 파워 서플라이의 과전압 보호회로.2. The apparatus of claim 1, wherein the comparison means comprises a zener diode for sensing first and second power supplies, an operational amplifier for comparing and outputting the sensing voltage and the divide voltage, and control means for conducting and blocking in accordance with the output of the operational amplifier. Overvoltage protection circuit of a switching power supply, characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880018106A 1988-12-31 1988-12-31 Overvoltage Protection Circuits for Switching Power Supplies KR900011099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880018106A KR900011099A (en) 1988-12-31 1988-12-31 Overvoltage Protection Circuits for Switching Power Supplies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880018106A KR900011099A (en) 1988-12-31 1988-12-31 Overvoltage Protection Circuits for Switching Power Supplies

Publications (1)

Publication Number Publication Date
KR900011099A true KR900011099A (en) 1990-07-11

Family

ID=68233410

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880018106A KR900011099A (en) 1988-12-31 1988-12-31 Overvoltage Protection Circuits for Switching Power Supplies

Country Status (1)

Country Link
KR (1) KR900011099A (en)

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