JPS5547511A - Stabilizing power source device - Google Patents

Stabilizing power source device

Info

Publication number
JPS5547511A
JPS5547511A JP11952278A JP11952278A JPS5547511A JP S5547511 A JPS5547511 A JP S5547511A JP 11952278 A JP11952278 A JP 11952278A JP 11952278 A JP11952278 A JP 11952278A JP S5547511 A JPS5547511 A JP S5547511A
Authority
JP
Japan
Prior art keywords
power source
output
transistor
opening
reference voltage
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
JP11952278A
Other languages
Japanese (ja)
Inventor
Yasuhiro Fukumoto
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 JP11952278A priority Critical patent/JPS5547511A/en
Publication of JPS5547511A publication Critical patent/JPS5547511A/en
Pending legal-status Critical Current

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  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE: To effectively control the output through opening and closing by a simple construction by detecting the alternating current power source input level to be less than a predetermined one and opening the series control means.
CONSTITUTION: The alternating current input power source AC is smoothly rectified by the rectifier 1 and the smoothing capacitor 2. When the reference voltage Vs is given from the reference voltage generating circuit 11, the transistor 9 is controlled so as to make the connecting voltages of potential dividing resistances 6, 7 due to this voltge and output equal. In order to turn the output voltage DC off, the reference voltage Vs may be made 0. When the input level of the alternating current power source AC becomes less than a predetermined value, the transistor is turned on through the photocoupler 14 to open the transistor 9 and break the direct current output DC. Thus, the simple construction permits output to be controlled through opening and closing, so that the power source of high reliability and stability can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP11952278A 1978-09-28 1978-09-28 Stabilizing power source device Pending JPS5547511A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11952278A JPS5547511A (en) 1978-09-28 1978-09-28 Stabilizing power source device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11952278A JPS5547511A (en) 1978-09-28 1978-09-28 Stabilizing power source device

Publications (1)

Publication Number Publication Date
JPS5547511A true JPS5547511A (en) 1980-04-04

Family

ID=14763350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11952278A Pending JPS5547511A (en) 1978-09-28 1978-09-28 Stabilizing power source device

Country Status (1)

Country Link
JP (1) JPS5547511A (en)

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