JPS60117690U

JPS60117690U - power supply

Info

Publication number: JPS60117690U
Application number: JP481884U
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

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
図は本考案の一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である。゛２・・・スイッチング手段、３Ａ・・・第１の整流平滑
回路、３Ｂ・・・第２の整流平滑回路、１０・・・タッ
プ付きコイル、１０ａ・・・共通巻線、１０ｂ・・・分
路巻線、１１・・・検出制御手段、Ｘｏ・・・擬似負荷
、Ｘ・・・負荷、Ｉ１・・・擬似負荷電流、Ｉ２・・・
負荷電流。第１図第４図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, and FIG. 4 is a characteristic diagram showing the DC output voltage-load current characteristics of the same. 2... Switching means, 3A... First rectifying and smoothing circuit, 3B... Second rectifying and smoothing circuit, 10... Tapped coil, 10a... Common winding, 10b... Shunt winding, 11... detection control means, Xo... pseudo load, X... load, I1... pseudo load current, I2...
load current. Figure 1 Figure 4

Claims

[Scope of utility model registration request]

A first rectifying and smoothing circuit having a tapped coil provided with a tap on the DC input side, a pseudo load connected to one of the tapped coils, and a DC output having a polarity opposite to the DC input to the other tapped coil. A second rectifying and smoothing circuit connected to generate a voltage, a switching means for intermittently supplying DC input to the second rectifying and smoothing circuit, and a switching means for controlling the switching means by detecting voltage fluctuations of a pseudo load. and a detection control means for making the pseudo load current a constant current, and the DC input is made constant by limiting the load current of the load connected to the second rectifying and smoothing circuit by the pseudo load, and the DC output is of opposite polarity. A power supply device characterized in that it obtains.