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JPS5569819A - Constant voltage unit - Google Patents

Constant voltage unit

Info

Publication number
JPS5569819A
JPS5569819A JP14279778A JP14279778A JPS5569819A JP S5569819 A JPS5569819 A JP S5569819A JP 14279778 A JP14279778 A JP 14279778A JP 14279778 A JP14279778 A JP 14279778A JP S5569819 A JPS5569819 A JP S5569819A
Authority
JP
Japan
Prior art keywords
voltage
output
power supply
control
transistor
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
JP14279778A
Other languages
Japanese (ja)
Inventor
Shinichiro Iwasaki
Ryozo Uchikoshi
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.)
Riken Keiki KK
Original Assignee
Riken Keiki 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 Riken Keiki KK filed Critical Riken Keiki KK
Priority to JP14279778A priority Critical patent/JPS5569819A/en
Publication of JPS5569819A publication Critical patent/JPS5569819A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To stabilize a voltage up to that nearly equal to a power voltage by reducing the voltage loss of a control part by using a common emitter transistor as a control transistor which controls a current flowing from a power supply to a load according to the output of an amplifier. CONSTITUTION:Detection part 22 composed of a potentiometer detecting variation in voltage across a load connected to power supply 20 or output terminal 21 and comparator 24 making a comparison between the detection output of detection part 22 and the reference voltage developed by reference voltage part 25 are provided, and the output of this comparator 24 is amplified by amplification part 26 consisting of a transistor. The output of this amplification part 26 is applied to the base of a common-emitter transistor of control part 30 to control a current flowing from power supply 20 to a load connected to terminal 21 according to the output of amplification part 26. Then, a voltage drop across control part 30 is reduced and a voltage is stabilized full within the voltage range of power supply 20.
JP14279778A 1978-11-21 1978-11-21 Constant voltage unit Pending JPS5569819A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14279778A JPS5569819A (en) 1978-11-21 1978-11-21 Constant voltage unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14279778A JPS5569819A (en) 1978-11-21 1978-11-21 Constant voltage unit

Publications (1)

Publication Number Publication Date
JPS5569819A true JPS5569819A (en) 1980-05-26

Family

ID=15323836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14279778A Pending JPS5569819A (en) 1978-11-21 1978-11-21 Constant voltage unit

Country Status (1)

Country Link
JP (1) JPS5569819A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59187825U (en) * 1983-05-30 1984-12-13 日本サ−ボ株式会社 constant voltage circuit
JPS60519A (en) * 1983-06-17 1985-01-05 Nippon Telegr & Teleph Corp <Ntt> Constant-voltage power circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53128743A (en) * 1977-04-14 1978-11-10 Bosch Gmbh Robert Dc voltage regulator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53128743A (en) * 1977-04-14 1978-11-10 Bosch Gmbh Robert Dc voltage regulator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59187825U (en) * 1983-05-30 1984-12-13 日本サ−ボ株式会社 constant voltage circuit
JPS60519A (en) * 1983-06-17 1985-01-05 Nippon Telegr & Teleph Corp <Ntt> Constant-voltage power circuit

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