JPS6248459B2 - - Google Patents

Info

Publication number
JPS6248459B2
JPS6248459B2 JP53037751A JP3775178A JPS6248459B2 JP S6248459 B2 JPS6248459 B2 JP S6248459B2 JP 53037751 A JP53037751 A JP 53037751A JP 3775178 A JP3775178 A JP 3775178A JP S6248459 B2 JPS6248459 B2 JP S6248459B2
Authority
JP
Japan
Prior art keywords
voltage
conduction means
secondary battery
switching circuit
terminal
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.)
Expired
Application number
JP53037751A
Other languages
English (en)
Japanese (ja)
Other versions
JPS54129443A (en
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
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 Tokyo Shibaura Electric Co Ltd filed Critical Tokyo Shibaura Electric Co Ltd
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 JPS54129443A (en) 1979-10-06
JPS6248459B2 true 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)

Families Citing this family (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

Family Cites Families (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

Also Published As

Publication number Publication date
JPS54129443A (en) 1979-10-06

Similar Documents

Publication Publication Date Title
US3735233A (en) Battery charger apparatus having multiple modes of operation and automatic switching therebetween
US4851756A (en) Primary-secondary hybrid battery
US5498913A (en) Power supply control apparatus with a manually operable control switch
US5177426A (en) Over-discharge protection circuitry
US3308306A (en) Electrical power supply and battery charges
EP0501418B1 (en) Low-fall voltage regulator
US3543043A (en) Battery protection system
US20120153747A1 (en) Usb charger, its switch control system and method, and a usb interface charger for a laptop
CA2126405C (en) Power regulation for redundant battery supplies
US3049623A (en) Auxiliary power supply
US3808499A (en) Auxiliary lighting system
US4225792A (en) Detector circuit
US4398098A (en) Electronic latching circuit
JPH02183817A (ja) 電源装置
JPH07274413A (ja) 携帯可能機器用の補助サプライ出力を有する定電流バッテリー充電システム
EP0238803B1 (en) Stabilized power-supply circuit
US3443191A (en) Battery charger with low current cutoff
US4868706A (en) Protection circuit for a battery charger
US3453518A (en) Battery charging control device
US4085358A (en) Regulated DC to DC power supply with automatic recharging capability
JPS6248459B2 (cg-RX-API-DMAC7.html)
US4401894A (en) Automatic uninterrupted D.C. power source switch
US5831416A (en) Apparatus and method for charging batteries
JP3457364B2 (ja) バックアップ機能付き電源装置
JP3259123B2 (ja) コンデンサの充放電回路