JPS5574615A - Constant voltage circuit - Google Patents

Constant voltage circuit

Info

Publication number
JPS5574615A
JPS5574615A JP14825378A JP14825378A JPS5574615A JP S5574615 A JPS5574615 A JP S5574615A JP 14825378 A JP14825378 A JP 14825378A JP 14825378 A JP14825378 A JP 14825378A JP S5574615 A JPS5574615 A JP S5574615A
Authority
JP
Japan
Prior art keywords
trq
emitter
base
voltage
collector
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
JP14825378A
Other languages
Japanese (ja)
Inventor
Hiroshi Gomi
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
Toshiba Corp
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14825378A priority Critical patent/JPS5574615A/en
Publication of JPS5574615A publication Critical patent/JPS5574615A/en
Pending legal-status Critical Current

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  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE: To remarkably increase the stability of the output voltage of the unit, by taking the base to emitter voltage of a transistor as a multiple of the voltage between the base and emitter of Tr used for the diode.
CONSTITUTION: The base of the transistor TrQ1 is connected to the junction point of the resistors R1 and R2, and the collector is connected to the constant voltage output terminal P1. Further, the collector of TrQ3 is connected to the emitter of TrQ1 and the base and the collector of TrQ3 are connected and used as a diode, and the emitter is grounded. On the other hand, the collector of TrQ3 is connected to the junction of the resistors R1 and R3, and the voltage between the base and emitter is taken as a multiple of the voltage between the base and emitter of TrQ4 used as a diode. Thus, the variation of the output voltage due to the dispersion of the ratio of the resistors R1 and R2 is restricted to remarkably increase the stability of the output of unit.
COPYRIGHT: (C)1980,JPO&Japio
JP14825378A 1978-11-30 1978-11-30 Constant voltage circuit Pending JPS5574615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14825378A JPS5574615A (en) 1978-11-30 1978-11-30 Constant voltage circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14825378A JPS5574615A (en) 1978-11-30 1978-11-30 Constant voltage circuit

Publications (1)

Publication Number Publication Date
JPS5574615A true JPS5574615A (en) 1980-06-05

Family

ID=15448645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14825378A Pending JPS5574615A (en) 1978-11-30 1978-11-30 Constant voltage circuit

Country Status (1)

Country Link
JP (1) JPS5574615A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002964A1 (en) * 1981-02-20 1982-09-02 Inc Motorola Variable temperature coefficient level shifter
US4460865A (en) * 1981-02-20 1984-07-17 Motorola, Inc. Variable temperature coefficient level shifting circuit and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002964A1 (en) * 1981-02-20 1982-09-02 Inc Motorola Variable temperature coefficient level shifter
US4460865A (en) * 1981-02-20 1984-07-17 Motorola, Inc. Variable temperature coefficient level shifting circuit and method

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