JPS5422556A - Current changeover circuit - Google Patents

Current changeover circuit

Info

Publication number
JPS5422556A
JPS5422556A JP8741277A JP8741277A JPS5422556A JP S5422556 A JPS5422556 A JP S5422556A JP 8741277 A JP8741277 A JP 8741277A JP 8741277 A JP8741277 A JP 8741277A JP S5422556 A JPS5422556 A JP S5422556A
Authority
JP
Japan
Prior art keywords
changeover circuit
current changeover
transistor
current
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8741277A
Other languages
Japanese (ja)
Inventor
Hisayoshi Shimizu
Mutsuyo Kanetani
Kinichi Nakahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8741277A priority Critical patent/JPS5422556A/en
Publication of JPS5422556A publication Critical patent/JPS5422556A/en
Pending legal-status Critical Current

Links

Landscapes

  • Continuous-Control Power Sources That Use Transistors (AREA)

Abstract

PURPOSE: To reduce the withstand voltage of a changeover transistor and simplify circuit configuration by using a transistor controlled by a photocoupler as a switching element.
COPYRIGHT: (C)1979,JPO&Japio
JP8741277A 1977-07-22 1977-07-22 Current changeover circuit Pending JPS5422556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8741277A JPS5422556A (en) 1977-07-22 1977-07-22 Current changeover circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8741277A JPS5422556A (en) 1977-07-22 1977-07-22 Current changeover circuit

Publications (1)

Publication Number Publication Date
JPS5422556A true JPS5422556A (en) 1979-02-20

Family

ID=13914152

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8741277A Pending JPS5422556A (en) 1977-07-22 1977-07-22 Current changeover circuit

Country Status (1)

Country Link
JP (1) JPS5422556A (en)

Similar Documents

Publication Publication Date Title
JPS53140962A (en) Electronic switch circuit
JPS5423928A (en) Switching regulator
JPS5278052A (en) Switching regulator
JPS5354762A (en) Current controlling circuit
JPS5422557A (en) Constant current circuit
JPS5422556A (en) Current changeover circuit
JPS5422731A (en) Semiconductor memory circuit
JPS5410925A (en) Inverter device
JPS541862A (en) Stabilized power circuit
JPS53136741A (en) High frequency wave heating device
JPS5420326A (en) Dc/dc converter
JPS5395562A (en) Switch
JPS5384120A (en) Iron resonant transformer drive circuit
JPS53108760A (en) Gate circuit of gate turn-off thyristor
JPS524038A (en) Stabilized power source circuit
JPS5429629A (en) Operation setting circuit for camera
JPS5228803A (en) Electronic switching circuit
JPS53100760A (en) On-off control circuit for semiconductor switching element
JPS5329602A (en) Power supply connection circuit
JPS5389935A (en) Frequency converter
JPS52122826A (en) Voltage conversion circuit
JPS5432719A (en) Voltage control circuit
JPS5422713A (en) High voltage control circuit
JPS53128970A (en) Switch
JPS5376736A (en) Gate pulse generation circuit