JPS54108256A - Stabilized electric source circuit - Google Patents

Stabilized electric source circuit

Info

Publication number
JPS54108256A
JPS54108256A JP1533978A JP1533978A JPS54108256A JP S54108256 A JPS54108256 A JP S54108256A JP 1533978 A JP1533978 A JP 1533978A JP 1533978 A JP1533978 A JP 1533978A JP S54108256 A JPS54108256 A JP S54108256A
Authority
JP
Japan
Prior art keywords
control transistors
control
transistors
resistance
stabilized
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
JP1533978A
Other languages
Japanese (ja)
Inventor
Teruo Tonomura
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1533978A priority Critical patent/JPS54108256A/en
Publication of JPS54108256A publication Critical patent/JPS54108256A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To decrease electric current load in control transistors, by connecting control resistance in series to the control transistors, and making short-circuited switches which are connected to the both ends of this control resistance to be ON and OFF, in accordance with load current.
CONSTITUTION: Output voltage is stabilized by driving control transistors 13 which are connected among input Vin and Vout with stabilized circuit 14. Limiting resistance 21 is connected in series to above-mentioned control transistors 13, switching transistors 22 are connected among both ends of this limiting resistance 21, and the switching transistor 22 is OFF, when input voltage is big, and is ON, when input voltage is small. Thus, suppression of excess current is made by limiting resistanc, and electric load of the control transistors 13 is made to be decreased.
COPYRIGHT: (C)1979,JPO&Japio
JP1533978A 1978-02-15 1978-02-15 Stabilized electric source circuit Pending JPS54108256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1533978A JPS54108256A (en) 1978-02-15 1978-02-15 Stabilized electric source circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1533978A JPS54108256A (en) 1978-02-15 1978-02-15 Stabilized electric source circuit

Publications (1)

Publication Number Publication Date
JPS54108256A true JPS54108256A (en) 1979-08-24

Family

ID=11886020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1533978A Pending JPS54108256A (en) 1978-02-15 1978-02-15 Stabilized electric source circuit

Country Status (1)

Country Link
JP (1) JPS54108256A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171523U (en) * 1982-05-12 1983-11-16 澤藤電機株式会社 Vehicle-mounted power supply unit
JPS5915108U (en) * 1982-07-16 1984-01-30 株式会社小松製作所 Vehicle power supply device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58171523U (en) * 1982-05-12 1983-11-16 澤藤電機株式会社 Vehicle-mounted power supply unit
JPS5915108U (en) * 1982-07-16 1984-01-30 株式会社小松製作所 Vehicle power supply device

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