JPS60117689U

JPS60117689U - power supply

Info

Publication number: JPS60117689U
Application number: JP481784U
Authority: JP
Inventors: 桑木　光雄
Original assignee: ティーディーケイ株式会社
Priority date: 1984-01-17
Filing date: 1984-01-17
Publication date: 1985-08-08
Also published as: JPS645986Y2

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の電源装置の一例を示す回路図、第２図は
同上の直流出力電圧−負荷電流特性を示す特性図、第３
図は本考案の実施例を示す回路図、第４図は同上の直流
出力電圧−負荷電流特性を示す特性図、第５図は本考案
の実施例の他側を示す回路図である。ＩＡ、ＩＢ・・・トランス、１ａ・・・１次巻線、１ｂ
、ｌｃ、ｌｄ・・・２次巻線、２・・・スイッチング手
段、１０・・・第１の整流平滑回路、１１・・・第２の
整流平滑回路、１２・・・帰還回路、Ｘｏ・・・擬似負
荷、Ｘ・・・負荷、■□・・・擬似負荷電流、Ｉ２・・
・負荷電流。Fig. 1 is a circuit diagram showing an example of a conventional power supply device, Fig. 2 is a characteristic diagram showing the DC output voltage-load current characteristics same as above, and Fig. 3 is a characteristic diagram showing the same DC output voltage-load current characteristics.
The figure is a circuit diagram showing an embodiment of the present invention, FIG. 4 is a characteristic diagram showing the DC output voltage-load current characteristics same as above, and FIG. 5 is a circuit diagram showing the other side of the embodiment of the present invention. IA, IB...Transformer, 1a...Primary winding, 1b
, lc, ld... Secondary winding, 2... Switching means, 10... First rectifying and smoothing circuit, 11... Second rectifying and smoothing circuit, 12... Feedback circuit, Xo. ...pseudo load, X...load, ■□...pseudo load current, I2...
・Load current.

Claims

[Scope of utility model registration request]

The DC input is intermittent and printed on the primary winding of the transformer by a switching means, the DC output is obtained from the rectifying and smoothing means connected to the secondary winding of the transformer, and the change in the DC output is detected and the switching means is activated. In the power supply device, the rectifying and smoothing means has a pseudo load and stabilizes the pseudo load current flowing through the pseudo load. The present invention is characterized by comprising a first rectifying and smoothing circuit and a second rectifying and smoothing circuit that includes the pseudo load as a part of the circuit, and the load current of the second rectifying and smoothing circuit is limited by the pseudo load to make it a constant current. and power supply equipment.