JPS55123710A - Alternating current constant-voltage unit - Google Patents

Alternating current constant-voltage unit

Info

Publication number
JPS55123710A
JPS55123710A JP3067279A JP3067279A JPS55123710A JP S55123710 A JPS55123710 A JP S55123710A JP 3067279 A JP3067279 A JP 3067279A JP 3067279 A JP3067279 A JP 3067279A JP S55123710 A JPS55123710 A JP S55123710A
Authority
JP
Japan
Prior art keywords
make
voltage
capacitor
zero point
transformer
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
JP3067279A
Other languages
Japanese (ja)
Inventor
Hiroshi Okamoto
Mitsuo Yonemori
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP3067279A priority Critical patent/JPS55123710A/en
Publication of JPS55123710A publication Critical patent/JPS55123710A/en
Pending legal-status Critical Current

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  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE: To make a transformer needless, make a unit suitable for IC, and make it possible to make the unit small-size, by resetting a phase control circuit by the output of the voltage zero point detection circuit of an AC power source and by controlling an AC switching circuit at a prescribed time after this reset.
CONSTITUTION: Voltages generated at both ends of load L are rectified in 20 and are smoothed in 30 and are compared with a reference voltage and are amplified in 40, and on a basis of the result, the charging current of capacitor 52 is subjected to phases control in 50. Since this capacitor 52 discharges at the voltage zero point, the charging voltage of capacitor 52 becomes higher than the gate voltage of PUT 53 at a prescribed time after the voltage zero point detected by 60. Therefore, PUT 53 is turned on to send a trigger signal to the gate of triode AC switch 2 through a pulse transformer, and the phase control of triode AC switch 2 is performed on a basis of actual voltages given to both sides of load L. Consequently, no transformer is required.
COPYRIGHT: (C)1980,JPO&Japio
JP3067279A 1979-03-16 1979-03-16 Alternating current constant-voltage unit Pending JPS55123710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3067279A JPS55123710A (en) 1979-03-16 1979-03-16 Alternating current constant-voltage unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3067279A JPS55123710A (en) 1979-03-16 1979-03-16 Alternating current constant-voltage unit

Publications (1)

Publication Number Publication Date
JPS55123710A true JPS55123710A (en) 1980-09-24

Family

ID=12310209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3067279A Pending JPS55123710A (en) 1979-03-16 1979-03-16 Alternating current constant-voltage unit

Country Status (1)

Country Link
JP (1) JPS55123710A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125117A (en) * 1982-01-20 1983-07-26 Hitachi Lighting Ltd Preventing circuit of variation in load voltage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125117A (en) * 1982-01-20 1983-07-26 Hitachi Lighting Ltd Preventing circuit of variation in load voltage

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