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JPS5431546A - Direct current constant voltage electric source device - Google Patents

Direct current constant voltage electric source device

Info

Publication number
JPS5431546A
JPS5431546A JP9694777A JP9694777A JPS5431546A JP S5431546 A JPS5431546 A JP S5431546A JP 9694777 A JP9694777 A JP 9694777A JP 9694777 A JP9694777 A JP 9694777A JP S5431546 A JPS5431546 A JP S5431546A
Authority
JP
Japan
Prior art keywords
direct current
constant voltage
source device
voltage electric
electric 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
JP9694777A
Other languages
Japanese (ja)
Inventor
Iwao Ayusawa
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 JP9694777A priority Critical patent/JPS5431546A/en
Publication of JPS5431546A publication Critical patent/JPS5431546A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To intend to reduce electric power loss, by forming such that voltage value of constant voltage output can be set as a high value, by making operation of voltage up circuit to be stopped, when direct current source voltage is over a specified value.
COPYRIGHT: (C)1979,JPO&Japio
JP9694777A 1977-08-15 1977-08-15 Direct current constant voltage electric source device Pending JPS5431546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9694777A JPS5431546A (en) 1977-08-15 1977-08-15 Direct current constant voltage electric source device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9694777A JPS5431546A (en) 1977-08-15 1977-08-15 Direct current constant voltage electric source device

Publications (1)

Publication Number Publication Date
JPS5431546A true JPS5431546A (en) 1979-03-08

Family

ID=14178488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9694777A Pending JPS5431546A (en) 1977-08-15 1977-08-15 Direct current constant voltage electric source device

Country Status (1)

Country Link
JP (1) JPS5431546A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687117A (en) * 1979-12-19 1981-07-15 Fujitsu Ltd Switching regulator
JPS5958816U (en) * 1982-10-02 1984-04-17 株式会社測機舎 Constant voltage circuit for DC power supply
JPH01291310A (en) * 1988-05-19 1989-11-22 Fujitsu Kiden Ltd Power source controller
US5289361A (en) * 1991-01-16 1994-02-22 Vlt Corporation Adaptive boost switching preregulator and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687117A (en) * 1979-12-19 1981-07-15 Fujitsu Ltd Switching regulator
JPS6337408B2 (en) * 1979-12-19 1988-07-25 Fujitsu Ltd
JPS5958816U (en) * 1982-10-02 1984-04-17 株式会社測機舎 Constant voltage circuit for DC power supply
JPH0542484Y2 (en) * 1982-10-02 1993-10-26
JPH01291310A (en) * 1988-05-19 1989-11-22 Fujitsu Kiden Ltd Power source controller
US5289361A (en) * 1991-01-16 1994-02-22 Vlt Corporation Adaptive boost switching preregulator and method

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