KR970024581A - Single Soft Switching Circuit of Power Supply - Google Patents

Single Soft Switching Circuit of Power Supply Download PDF

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Publication number
KR970024581A
KR970024581A KR1019950038555A KR19950038555A KR970024581A KR 970024581 A KR970024581 A KR 970024581A KR 1019950038555 A KR1019950038555 A KR 1019950038555A KR 19950038555 A KR19950038555 A KR 19950038555A KR 970024581 A KR970024581 A KR 970024581A
Authority
KR
South Korea
Prior art keywords
power supply
switching circuit
soft switching
single soft
diode
Prior art date
Application number
KR1019950038555A
Other languages
Korean (ko)
Inventor
이덕호
임성호
Original Assignee
이형도
삼성전기 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 이형도, 삼성전기 주식회사 filed Critical 이형도
Priority to KR1019950038555A priority Critical patent/KR970024581A/en
Priority to JP8205721A priority patent/JPH09140133A/en
Priority to US08/691,941 priority patent/US5754416A/en
Publication of KR970024581A publication Critical patent/KR970024581A/en

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Abstract

이 발명은 파워 써플라이의 싱글 소프트 스위칭회로에 관한 것으로 특히, 기존의 파워 써플라이 스위칭 회로에 설치되어 있는 메인 스위칭 소자(Q1)의 양단 사이에는 직렬 연결된 콘덴서(C1)와 다이오드(D1)를 병렬로 연결하고, 상기 다이오드(D1)의 양단에는 코일(L1)을 병렬 연결한 것만으로 소프트 스위칭회로를 형성시킴으로써, 제품의 생산원가를 대폭 절감시킬 수 있음은 물론 파워 써플라이의 효율을 더욱더 향상시킬 수 있는 등 매우 유용한 발명인 것이다.The present invention relates to a single soft switching circuit of a power supply. In particular, a series connected capacitor C1 and a diode D1 are connected in parallel between both ends of the main switching element Q1 installed in a conventional power supply switching circuit. In addition, by forming a soft switching circuit at both ends of the diode D1 by simply connecting the coils L1 in parallel, the production cost of the product can be greatly reduced and the efficiency of the power supply can be further improved. It is a very useful invention.

Description

파워 써플라이의 싱글 소프트 스위칭회로Single Soft Switching Circuit of Power Supply

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

제1도는 이 발명의 싱글 소프트 스위칭 회로도,1 is a single soft switching circuit diagram of the present invention,

제2도는 (가)-(라)는 이 발명 회로의 각부 동작 파형도.2 is a (a) to (d) operation waveform diagram of each part of the circuit of the present invention.

Claims (1)

교류신호가 입력되는 트랜스(T1)의 1차측 일단과 접지단자 사이에 메인 스위칭 소자(Q1)를 직렬 연결하고, 상기 트랜스(T1)의 2차측에는 교류전압을 직류전압으로 정류시켜 주는 정류기(1)와, 상기 정류기(1)의 출력전압내에 포함된 잡음신호를 제거하는 필터(2)를 설치하여서 된 파워 써플라이의 스위칭 회로에 있어서, 상기 메인 스위칭 소자(Q1)의 양단 사이에 상호 직렬 연결된 콘덴서(C1)와 다이오드(D1)를 병렬로 연결하고, 상기 다이오드(D1)의 양단에는 코일(L1)을 병렬 연결한 것을 특징으로 하는 파어 써플라이의 싱글 소프트 스위칭회로.A rectifier 1 for connecting a main switching element Q1 in series between a first end of a transformer T1 and an earth terminal to which an AC signal is input, and rectifying an AC voltage to a DC voltage at a secondary side of the transformer T1. And a filter (2) provided with a filter (2) for removing a noise signal included in the output voltage of the rectifier (1), the capacitor connected in series between both ends of the main switching element (Q1). A single soft switching circuit of a power supply, characterized in that C1 and a diode D1 are connected in parallel, and coils L1 are connected in parallel to both ends of the diode D1. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950038555A 1995-10-31 1995-10-31 Single Soft Switching Circuit of Power Supply KR970024581A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019950038555A KR970024581A (en) 1995-10-31 1995-10-31 Single Soft Switching Circuit of Power Supply
JP8205721A JPH09140133A (en) 1995-10-31 1996-08-05 Single soft switching circuit for power supply
US08/691,941 US5754416A (en) 1995-10-31 1996-08-05 Single soft switching circuit for power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950038555A KR970024581A (en) 1995-10-31 1995-10-31 Single Soft Switching Circuit of Power Supply

Publications (1)

Publication Number Publication Date
KR970024581A true KR970024581A (en) 1997-05-30

Family

ID=66584216

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950038555A KR970024581A (en) 1995-10-31 1995-10-31 Single Soft Switching Circuit of Power Supply

Country Status (1)

Country Link
KR (1) KR970024581A (en)

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A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application