JPS54129443A - Automatic power supply switching circuit - Google Patents

Automatic power supply switching circuit

Info

Publication number
JPS54129443A
JPS54129443A JP3775178A JP3775178A JPS54129443A JP S54129443 A JPS54129443 A JP S54129443A JP 3775178 A JP3775178 A JP 3775178A JP 3775178 A JP3775178 A JP 3775178A JP S54129443 A JPS54129443 A JP S54129443A
Authority
JP
Japan
Prior art keywords
diode
voltage
secondary battery
rectified
load
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.)
Granted
Application number
JP3775178A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6248459B2 (cg-RX-API-DMAC7.html
Inventor
Tsuneaki Oka
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3775178A priority Critical patent/JPS54129443A/ja
Publication of JPS54129443A publication Critical patent/JPS54129443A/ja
Publication of JPS6248459B2 publication Critical patent/JPS6248459B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Stand-By Power Supply Arrangements (AREA)
JP3775178A 1978-03-31 1978-03-31 Automatic power supply switching circuit Granted JPS54129443A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3775178A JPS54129443A (en) 1978-03-31 1978-03-31 Automatic power supply switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3775178A JPS54129443A (en) 1978-03-31 1978-03-31 Automatic power supply switching circuit

Publications (2)

Publication Number Publication Date
JPS54129443A true JPS54129443A (en) 1979-10-06
JPS6248459B2 JPS6248459B2 (cg-RX-API-DMAC7.html) 1987-10-14

Family

ID=12506170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3775178A Granted JPS54129443A (en) 1978-03-31 1978-03-31 Automatic power supply switching circuit

Country Status (1)

Country Link
JP (1) JPS54129443A (cg-RX-API-DMAC7.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151835A (ja) * 1982-03-04 1983-09-09 富士通株式会社 充電回路

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531616U (cg-RX-API-DMAC7.html) * 1976-06-25 1978-01-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531616U (cg-RX-API-DMAC7.html) * 1976-06-25 1978-01-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151835A (ja) * 1982-03-04 1983-09-09 富士通株式会社 充電回路

Also Published As

Publication number Publication date
JPS6248459B2 (cg-RX-API-DMAC7.html) 1987-10-14

Similar Documents

Publication Publication Date Title
US5177426A (en) Over-discharge protection circuitry
EP0226253A1 (en) Power supply circuit
GB2347030A (en) Photoflash charging circuit with current and voltage monitor
EP0103124A3 (en) Battery charging flashlight circuit
US3226623A (en) Transistorized battery charger
JPS54129443A (en) Automatic power supply switching circuit
JPS54144922A (en) Control system for switching power
JPS55116118A (en) Reset circuit of microcomputer
JPS6430430A (en) Power source circuit
JPS5732427A (en) Camera circuit
SU997014A1 (ru) Устройство дл защиты источника питани
JPS54156458A (en) Capacitor charging circuit
KR910005692Y1 (ko) 무극성 밧데리 충전기
SU1265916A1 (ru) Устройство дл зар да аккумул торной батареи
JPS56159716A (en) Direct-current electric power device
JPS5487265A (en) Wrist watch with secondary battery
JPS56132019A (en) High-voltage pulse circuit
JPS6481663A (en) Rush current limiting circuit for converter
JPS5799032A (en) Alternating current two-wire type contactless switch
JPS5463334A (en) Spare power source monitor
GB852342A (en) Improvements in or relating to electrical battery supply circuit arrangements
JPS54157241A (en) Interruption-free power source system
JPS55162123A (en) Electric power unit
GB2054294A (en) Transformer circuit
JPS5636227A (en) Alternating current two-wire detection switch