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JPS57206930A - Phase controlling circuit - Google Patents

Phase controlling circuit

Info

Publication number
JPS57206930A
JPS57206930A JP9274181A JP9274181A JPS57206930A JP S57206930 A JPS57206930 A JP S57206930A JP 9274181 A JP9274181 A JP 9274181A JP 9274181 A JP9274181 A JP 9274181A JP S57206930 A JPS57206930 A JP S57206930A
Authority
JP
Japan
Prior art keywords
triac
voltage
circuit
capacitor
high temperature
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
JP9274181A
Other languages
Japanese (ja)
Inventor
Norihide Hamahara
Motohiro Kageyama
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP9274181A priority Critical patent/JPS57206930A/en
Publication of JPS57206930A publication Critical patent/JPS57206930A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
    • H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
    • H02M5/22—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/257—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

PURPOSE:To prevent a titled circuit from malfunction also in case of the operation at high temperature by turning off a triac for controlling phase at the vicinity of a zerocross point of AC power voltage. CONSTITUTION:A breaking circuit CTa consisting of a volume VR in a voltage dividing circuit D and a two-way constant voltage element obtained by anti- parallel connecting Zener diodes ZD1, ZD2 is incorporated into a titled circuit. The breaking circuit CTa turns the voltage applied to a capacitor, divided voltage VD, to ''0'' at a point close to the zerocross point of AC power voltage and discharges the charge of the capacitor C through resistances R3-R5 and the gate of a triac TR1. At the initial time of the succeeding half cycle, gate current to the triac is interrupted and, at high temperature operation, a trigger element is not easily turned off and the triac TR1 is easily turned on, performing phase control precisely.
JP9274181A 1981-06-15 1981-06-15 Phase controlling circuit Pending JPS57206930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9274181A JPS57206930A (en) 1981-06-15 1981-06-15 Phase controlling circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9274181A JPS57206930A (en) 1981-06-15 1981-06-15 Phase controlling circuit

Publications (1)

Publication Number Publication Date
JPS57206930A true JPS57206930A (en) 1982-12-18

Family

ID=14062835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9274181A Pending JPS57206930A (en) 1981-06-15 1981-06-15 Phase controlling circuit

Country Status (1)

Country Link
JP (1) JPS57206930A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4954768A (en) * 1986-03-13 1990-09-04 Lutron Electronics Co., Inc. Two wire low voltage dimmer
KR100770335B1 (en) * 2006-05-16 2007-10-25 최영환 Multi thermostat

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5586374A (en) * 1978-12-25 1980-06-30 Toshiba Corp Gate phase control circuit for thyristor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5586374A (en) * 1978-12-25 1980-06-30 Toshiba Corp Gate phase control circuit for thyristor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4954768A (en) * 1986-03-13 1990-09-04 Lutron Electronics Co., Inc. Two wire low voltage dimmer
KR100770335B1 (en) * 2006-05-16 2007-10-25 최영환 Multi thermostat

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