JPS5966385U

JPS5966385U - Switching type DC stabilized power supply

Info

Publication number: JPS5966385U
Application number: JP16105882U
Authority: JP
Inventors: 二川　東流
Original assignee: 新電元工業株式会社
Priority date: 1982-10-26
Filing date: 1982-10-26
Publication date: 1984-05-04
Also published as: JPH0119592Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来例を示す回路図、第２図はその回路各部の
波形図、第３図は本考案の一実施例回路図である。１・・・・・・制御部、２・・・・・・第１スイツチン
グトランジスタ、３・・・・・・直流入力、４・・・・
・・出カドランス、５・・・・・・電圧安定化制御部、
６・・・・・・第２スイツチングトランジスタ、７・・
・・・・整流平滑回路、８・・・・・・負過、Ｌ　−−
−−−−チョーク、Ｃ・・・・・・コンデンサ、Ｄ□。Ｄ２・・・・・・ダイオード、ＣＭ・・・・・・誤差増
幅器、Ｔ、１゜Ｔ、２・・・・・・トランジスタ、Ｒ□
、　Ｒ２，Ｒ３・・・・・・抵抗、Ｅｓ・・・・・・基
準電圧、Ｒ３・・・・・・直流出力電圧、Ｒ４，Ｒ５・
・・・・・分圧抵抗、Ｓ・・・・・・同期回路、ＰＭ・
・・・・・パルス幅変調回路、ＡＭ・・・・・・駆動回
路、Ｃ３・・・・・・同期用コンデンサ、Ｒ６・・・・
・・抵抗、ＣＴ・・・・・・コンデンサ。FIG. 1 is a circuit diagram showing a conventional example, FIG. 2 is a waveform diagram of each part of the circuit, and FIG. 3 is a circuit diagram of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Control unit, 2... First switching transistor, 3... DC input, 4...
... Output transformer, 5... Voltage stabilization control section,
6... Second switching transistor, 7...
... Rectifier smoothing circuit, 8 ... Load, L ---
-----Choke, C...Capacitor, D□. D2...Diode, CM...Error amplifier, T, 1°T, 2...Transistor, R□
, R2, R3...Resistance, Es...Reference voltage, R3...DC output voltage, R4, R5...
・・・・・・Voltage dividing resistor, S・・・・Synchronous circuit, PM・
...Pulse width modulation circuit, AM...Drive circuit, C3...Synchronization capacitor, R6...
...Resistance, CT...Capacitor.

Claims

[Scope of utility model registration request]

(1) A circuit that controls on/off DC input by a first switching transistor via an output transformer, and a second switching transistor connected in series to rectify the rectangular wave AC voltage obtained on the secondary side of the output transformer. A circuit that supplies a load via a smoothing circuit, a first transistor to which a DC output voltage is applied to its base, and a second transistor to which a reference voltage is applied to its base and a synchronous capacitor connected between its emitter and collector. 1. A switching type DC stabilized power supply device comprising a voltage stabilization control section consisting of a transistor and an error amplifier in which the collector of the second transistor is connected to the base of the second switching transistor.

(2) Utility model registration In claim 1, there is provided a switching type device in which a parallel circuit of a resistor and a capacitor is connected between the base of the second transistor of the error t1 amplifier and the collector of the second switching transistor. DC stabilized power supply.