KR970018948A

KR970018948A - Switching power supply

Info

Publication number: KR970018948A
Application number: KR1019950031866A
Authority: KR
Inventors: 이경수
Original assignee: 이경수
Priority date: 1995-09-26
Filing date: 1995-09-26
Publication date: 1997-04-30

Abstract

본 발명은 스위칭 전원장치에 관한 것으로 입력단의 한 단자가 되는 제1단자 및 제2단자를 갖는 제1차코일과, 상기 제1차코일의 제1단자 쪽에 캐소드가 연결되도록 한 형태로 제1단자와 제2단자사이에 연결된 재너다이오드와, 드레인단자, 소스단자 콘트롤단자를 가지며, 고주파출력신호를 발생하여 상기 제너다이오드의 애노드에 출력이인가되도록 하고 상시 소스단자는 접지도는 고주파발생소자와, 상기 제1차코일과 자기적으로 결합하여 제3단자와 제4단자를 갖는 제2차코일과, 상기 제2차코일의 제3단자와 제4단자사이에 연결되고 그 출력단이 전원공급단이 되는 제1정류회로와, 상기 제1차코일과 자기적으로 결합하며 제5단자와 제6단자를 갖는 제3차코일과, 상기 제3차코일의 제5단자에 애노드가 연결된 다이오드를 포함하는 제2정류회로와, 상기 고주파발생장치의 콘트롤단자에 연결된 콘센서와 상기 콘덴서에 상기 다이오드의 출력이 인가되도록 하며, 상기 제1정류회로의 출력에 의해 스위칭동작 하는 스위칭소자를 포함하여 소형 트랜스포머의 사용을 가능하게 한다.The present invention relates to a switching power supply, and has a first terminal having a first terminal and a second terminal serving as one terminal of an input terminal, and a first terminal in such a manner that a cathode is connected to the first terminal side of the first coil. And a zener diode connected between the second terminal and the second terminal, a drain terminal, and a source terminal control terminal. A second coil having a third terminal and a fourth terminal magnetically coupled to the first coil, and connected between a third terminal and a fourth terminal of the second coil, and an output terminal of the second coil And a third rectifying circuit magnetically coupled to the first coil and having a fifth terminal and a sixth terminal, and a diode having an anode connected to the fifth terminal of the third coil. A second rectifier circuit and the high And such that the output of the sensor and the diode to the capacitor cone is connected to the control terminal of the wave generator is applied, including a switching element for switching operation by the output of the first rectification circuit allows the use of small transformers.

Description

Switching power supply

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

제1도는 본 발명에 따른 일실시예를 나타내는 회로 구성도.1 is a circuit diagram showing an embodiment according to the present invention.

Claims

A first primary coil having a first terminal and a second terminal serving as one terminal of the input terminal; A zener diode connected between the first terminal and the second terminal in a form such that a cathode is connected to the first terminal of the first coil; A high frequency generating element having a drain terminal, a source terminal, and a control terminal, generating a high frequency output signal so that an output of the anode of the zener diode is applied, and the source terminal being grounded; A second secondary coil magnetically coupled to the first primary coil and having a third terminal and a fourth terminal; A first rectifying circuit connected between the third terminal and the fourth terminal of the second coil and the output terminal of the second coil being the power supply terminal; and a fifth terminal and a sixth terminal magnetically coupled to the first coil. Having a third coil; A second rectifying circuit including a diode connected to an anode at a fifth terminal of the third coil, a capacitor connected to a control terminal of the high frequency generator, and an output of the diode to the capacitor; Switching power supply comprising a switching element for switching operation by the output of the circuit.

The switching power supply of claim 1, wherein the voltage applied to the input terminal is a direct current.

The switching power supply according to claim 2, wherein the DC voltage is obtained by rectifying a high current voltage.

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