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JPS5472444A - Control of constant-voltage circuit - Google Patents

Control of constant-voltage circuit

Info

Publication number
JPS5472444A
JPS5472444A JP13918177A JP13918177A JPS5472444A JP S5472444 A JPS5472444 A JP S5472444A JP 13918177 A JP13918177 A JP 13918177A JP 13918177 A JP13918177 A JP 13918177A JP S5472444 A JPS5472444 A JP S5472444A
Authority
JP
Japan
Prior art keywords
constant voltage
emitter
transistor
collector
control
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
JP13918177A
Other languages
Japanese (ja)
Inventor
Hirotaka Imaizumi
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 Denshi KK
Original Assignee
Hitachi Denshi KK
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 Denshi KK filed Critical Hitachi Denshi KK
Priority to JP13918177A priority Critical patent/JPS5472444A/en
Publication of JPS5472444A publication Critical patent/JPS5472444A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE: To make it suitable for great current control and also to enhance the input-output efficiency by constituting a constant voltage supply means to give a fixed potential to the emitter of driving transistor with a constant voltage source or a constant voltage diode.
CONSTITUTION: The collector side of the voltage control transistor Q11 serves as the stabilized output OUT, and the emitter side is connected in series to the unstable input IN. The collector of the driving transistor Q12 is connected to the base of the voltage control transistor Q11, the base is connected with the emitter of the feedback amplifying transistor Q13, and the emitter of the driving transistor Q12 is connected to the constant voltage source E as a constant voltage supplying means. Or, as another way, the constant voltage diode ZD may be connected and also its emitter may be connected to the collector of the voltage control transistor Q11. Thus, it is possible to enhance efficiency and at the same time to make it suitable for great current control.
COPYRIGHT: (C)1979,JPO&Japio
JP13918177A 1977-11-18 1977-11-18 Control of constant-voltage circuit Pending JPS5472444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13918177A JPS5472444A (en) 1977-11-18 1977-11-18 Control of constant-voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13918177A JPS5472444A (en) 1977-11-18 1977-11-18 Control of constant-voltage circuit

Publications (1)

Publication Number Publication Date
JPS5472444A true JPS5472444A (en) 1979-06-09

Family

ID=15239438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13918177A Pending JPS5472444A (en) 1977-11-18 1977-11-18 Control of constant-voltage circuit

Country Status (1)

Country Link
JP (1) JPS5472444A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818723A (en) * 1981-07-28 1983-02-03 Anritsu Corp Series control type stabilized power supply

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015050A (en) * 1973-06-13 1975-02-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015050A (en) * 1973-06-13 1975-02-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5818723A (en) * 1981-07-28 1983-02-03 Anritsu Corp Series control type stabilized power supply

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