JPS5438544A - Constant voltage normally supply unit - Google Patents

Constant voltage normally supply unit

Info

Publication number
JPS5438544A
JPS5438544A JP10556777A JP10556777A JPS5438544A JP S5438544 A JPS5438544 A JP S5438544A JP 10556777 A JP10556777 A JP 10556777A JP 10556777 A JP10556777 A JP 10556777A JP S5438544 A JPS5438544 A JP S5438544A
Authority
JP
Japan
Prior art keywords
constant voltage
supply unit
voltage normally
normally supply
power source
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
JP10556777A
Other languages
Japanese (ja)
Inventor
Kazumasa Murakami
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP10556777A priority Critical patent/JPS5438544A/en
Publication of JPS5438544A publication Critical patent/JPS5438544A/en
Pending legal-status Critical Current

Links

Landscapes

  • Stand-By Power Supply Arrangements (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE: To always provide a constant output voltage regardless of an interruption of service and a surge of voltage in the commercial power source, by such means that with a selector circuit provided for selecting a constant voltage circuit and battery power source output, the selection be made when in a time of the commercial power source voltage going down.
COPYRIGHT: (C)1979,JPO&Japio
JP10556777A 1977-08-31 1977-08-31 Constant voltage normally supply unit Pending JPS5438544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10556777A JPS5438544A (en) 1977-08-31 1977-08-31 Constant voltage normally supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10556777A JPS5438544A (en) 1977-08-31 1977-08-31 Constant voltage normally supply unit

Publications (1)

Publication Number Publication Date
JPS5438544A true JPS5438544A (en) 1979-03-23

Family

ID=14411098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10556777A Pending JPS5438544A (en) 1977-08-31 1977-08-31 Constant voltage normally supply unit

Country Status (1)

Country Link
JP (1) JPS5438544A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59181093U (en) * 1983-05-20 1984-12-03 トキコ株式会社 Refueling device
JPH0172869U (en) * 1987-10-31 1989-05-16

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5292323A (en) * 1976-01-29 1977-08-03 Toshiba Corp Power supply unit for compensating instaneous power interruption

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5292323A (en) * 1976-01-29 1977-08-03 Toshiba Corp Power supply unit for compensating instaneous power interruption

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59181093U (en) * 1983-05-20 1984-12-03 トキコ株式会社 Refueling device
JPH0172869U (en) * 1987-10-31 1989-05-16
JPH0331257Y2 (en) * 1987-10-31 1991-07-02

Similar Documents

Publication Publication Date Title
JPS5278052A (en) Switching regulator
JPS5410772A (en) Electronic watch
AU505594B2 (en) Power supply with automatic shutdown
JPS5367826A (en) Boosting circuit
JPS5438544A (en) Constant voltage normally supply unit
JPS535755A (en) Power source c ircuit
JPS5249865A (en) Electronic watch
JPS52111647A (en) Multioutput switching regulator circuit
JPS5339806A (en) Power supply for magnetron
JPS5340845A (en) Protective circuit for short-circuit
JPS5326945A (en) Time division processing digital protective relay
JPS5238272A (en) Device for cheking operating condition of electric circuits
JPS5291573A (en) Discharge lamp lighting apparatus
JPS546583A (en) Power source display lamp circuit
JPS5311527A (en) Electronic unit
JPS52146160A (en) Timing circuit
JPS5383040A (en) Control system for selecting power units in use and reserved
JPS5330759A (en) Solow starter circuit
JPS51121733A (en) Inverter circuit
JPS52129302A (en) Power source circuit
JPS5357955A (en) Reset method for flip flop circuit
JPS52139940A (en) Constant voltage power source device
JPS5383052A (en) Zero-cross swtching circuit
JPS5314319A (en) Power source circuit
JPS52149442A (en) Voltage dividing circuit