JPS6143791U

JPS6143791U - power circuit

Info

Publication number: JPS6143791U
Application number: JP12732784U
Authority: JP
Inventors: 一弘石井
Original assignee: ティーディーケイ株式会社
Priority date: 1984-08-22
Filing date: 1984-08-22
Publication date: 1986-03-22

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図は本考案に係る電源回路の電気回蕗図、第２図は
従来の電源回路の電気回路図、第３図は切替スイッチを
閉じた状態での電気回路図である。１，２・・・入力端子、９・・・ブＩＪｙ．ジ整流回
路、５・・・切替スイッチ、５１・・、・第１のスイッ
チ、５２・・・第２のスイッチ、７，８・・・出力端子
、９・・・突入電流制限回路、１０・・・過電圧検出回
路、１１・・・保護回路。FIG. 1 is an electrical circuit diagram of a power supply circuit according to the present invention, FIG. 2 is an electrical circuit diagram of a conventional power supply circuit, and FIG. 3 is an electrical circuit diagram with the changeover switch closed. 1, 2...Input terminal, 9...B IJ y. rectifier circuit, 5... changeover switch, 51..., first switch, 52... second switch, 7, 8... output terminal, 9... rush current limiting circuit, 10... ... Overvoltage detection circuit, 11... Protection circuit.

Claims

[Scope of utility model registration request]

At least two types of AC power sources with different voltage values are input targets, and a changeover switch is provided for switching between voltage double rectification when one AC power source is input and bridge rectification when the other AC power source is input, In a power supply circuit that outputs DC voltages of substantially the same value from the same output terminal for two types of AC power supplies, the changeover switch is a first switch that switches between voltage doubler rectification and bridge rectification; A power supply circuit comprising a second switch interlocked with the power supply circuit, and an overvoltage detection circuit connected between the second switch and an AC input line.