JPS54154066A - Constant-voltage power supply circuit - Google Patents

Constant-voltage power supply circuit

Info

Publication number
JPS54154066A
JPS54154066A JP6235578A JP6235578A JPS54154066A JP S54154066 A JPS54154066 A JP S54154066A JP 6235578 A JP6235578 A JP 6235578A JP 6235578 A JP6235578 A JP 6235578A JP S54154066 A JPS54154066 A JP S54154066A
Authority
JP
Japan
Prior art keywords
transistor
error
voltage
amplifier
constant
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
JP6235578A
Other languages
Japanese (ja)
Inventor
Kazuo Sasaki
Masayuki Katakura
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 JP6235578A priority Critical patent/JPS54154066A/en
Publication of JPS54154066A publication Critical patent/JPS54154066A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a constant-voltage power supply circuit adpated for integrating with low power consumption by constructing an error difference amplifier circuit with differential amplifier.
CONSTITUTION: The standard voltage Vref from a standard voltage circuit is compared with an output voltage Vout by an error amplifier 3 to control so that the error voltage of the error amplifier becomes zero. The error amplifier consists of a differential amplifier of two transistors. The standard voltage is applied to the first transistor Q1, and the output terminal 2 of the second transistor Q2 is connected to the first transistor Q1 so that the saturated current of the transistor Q2 becomes n times that of the first transistor Q1 and that the current amplification factors of the current inverters I1, I2 connected to the transistors Q1, Q2 be n times so as to thereby reduce the power consumption.
COPYRIGHT: (C)1979,JPO&Japio
JP6235578A 1978-05-26 1978-05-26 Constant-voltage power supply circuit Pending JPS54154066A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6235578A JPS54154066A (en) 1978-05-26 1978-05-26 Constant-voltage power supply circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6235578A JPS54154066A (en) 1978-05-26 1978-05-26 Constant-voltage power supply circuit

Publications (1)

Publication Number Publication Date
JPS54154066A true JPS54154066A (en) 1979-12-04

Family

ID=13197716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6235578A Pending JPS54154066A (en) 1978-05-26 1978-05-26 Constant-voltage power supply circuit

Country Status (1)

Country Link
JP (1) JPS54154066A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607695A (en) * 1983-06-27 1985-01-16 Toshiba Corp Semiconductor integrated circuit
JPS61190617A (en) * 1985-02-20 1986-08-25 Hitachi Micro Comput Eng Ltd Constant voltage circuit
KR100763328B1 (en) 2005-01-26 2007-10-05 가부시키가이샤 리코 Constant voltage circuit and semiconductor device including the constant voltage circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS607695A (en) * 1983-06-27 1985-01-16 Toshiba Corp Semiconductor integrated circuit
JPS61190617A (en) * 1985-02-20 1986-08-25 Hitachi Micro Comput Eng Ltd Constant voltage circuit
JPH0673091B2 (en) * 1985-02-20 1994-09-14 株式会社日立マイコンシステム Constant voltage circuit
KR100763328B1 (en) 2005-01-26 2007-10-05 가부시키가이샤 리코 Constant voltage circuit and semiconductor device including the constant voltage circuit

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