JPS60186890U

JPS60186890U - power supply

Info

Publication number: JPS60186890U
Application number: JP7254984U
Authority: JP
Inventors: 宏猪股; 吉村　刮二
Original assignee: 日本捲線工業株式会社
Priority date: 1984-05-17
Filing date: 1984-05-17
Publication date: 1985-12-11

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 the drawing]

第１図は従来電源装置を示す回路図、第２図は第１図に
示す従来の装置の出力電圧波形図、第３図は本考案の一
実施例を示す回路図、第４図は第３図の動作を説明する
ための電圧波形図、第５図は第３図の出力電圧波形図、
第６図、第７図ば本考案の具体例をそれぞれ示す図であ
る。１・・・交流電源、２・・・電源トランス、２Ａ・・・
１次巻線、２Ｂ・・・２次巻線、３・・・整流回路、４
・・・コンデンサ、５・・・負荷回路、６・・・可変抵
抗回路、７・・・差演算回路。ト［□］：＋！ｌＬ一一］ｊ’；ゴー１デ［・冒Ｆ＝ｖ’、’：。」一、Ｊｒ、’，FIG. 1 is a circuit diagram showing a conventional power supply device, FIG. 2 is an output voltage waveform diagram of the conventional device shown in FIG. 1, FIG. 3 is a circuit diagram showing an embodiment of the present invention, and FIG. Figure 3 is a voltage waveform diagram for explaining the operation, Figure 5 is an output voltage waveform diagram of Figure 3,
FIGS. 6 and 7 are diagrams showing specific examples of the present invention, respectively. 1...AC power supply, 2...power transformer, 2A...
Primary winding, 2B... Secondary winding, 3... Rectifier circuit, 4
... Capacitor, 5... Load circuit, 6... Variable resistance circuit, 7... Difference calculation circuit. G [□]: +! lL11]j'; go1 de[・ blankF=v',':. ” One, Jr.’,

Claims

[Scope of utility model registration request]

(1) A power transformer in which an AC power source is connected to the primary winding and a capacitor input type rectifier circuit is connected to the secondary winding; When the secondary voltage of the power transformer exceeds a predetermined reference value, a difference calculation circuit that outputs a signal corresponding to the bias between the secondary voltage value and the reference value; a difference calculation circuit that is inserted in series between the primary winding of the power transformer and the AC power supply, and that outputs the output of the difference calculation circuit; A power supply device comprising a variable resistance circuit whose resistance value is controlled.

(2) The power supply device according to claim 1, wherein the difference calculation circuit and the secondary voltage of the power transformer are directly detected.

(3) The voltage calculation circuit detects a secondary voltage of the power transformer via a tertiary winding. The power supply device according to claim 1 of the utility model registration claim, in which feature i is: