JPS5788869A - Method of controlling firing of pwm control converter - Google Patents

Method of controlling firing of pwm control converter

Info

Publication number
JPS5788869A
JPS5788869A JP55161934A JP16193480A JPS5788869A JP S5788869 A JPS5788869 A JP S5788869A JP 55161934 A JP55161934 A JP 55161934A JP 16193480 A JP16193480 A JP 16193480A JP S5788869 A JPS5788869 A JP S5788869A
Authority
JP
Japan
Prior art keywords
signals
thyristors
current
synchronization
turn
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.)
Granted
Application number
JP55161934A
Other languages
Japanese (ja)
Other versions
JPH031905B2 (en
Inventor
Toshiaki Okuyama
Yuzuru Kubota
Hiroshi Nagase
Mitsusachi Motobe
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55161934A priority Critical patent/JPS5788869A/en
Publication of JPS5788869A publication Critical patent/JPS5788869A/en
Publication of JPH031905B2 publication Critical patent/JPH031905B2/ja
Granted 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To prevent the production of an annular current at the turn-ON time of a switching element by firing the switching element only in one polarity corresponding to the positive or negative going of AC current. CONSTITUTION:A comparator 11 compares a triangular wave signal with an AC voltage to produce signals (b), (c) while allows to produce two signals (e), (f) from a current direction detector 13 based on the signal (d) detected by a current detector 12. AND circuit 14, 15 produce signals (b), (e) and (c), (f), (g), (h). Gate amplifiers 16, 17 turn ON thyristors 1, 2 in synchronization with the rise of the signals (g), (h). Gate amplifiers 16, 17 turn ON the thyristors 1, 2 in synchronization with the rises of the signals (g), (h), and turns OFF the thyristors in synchronization with the fall of the signals. In this manner, the firing control of the thyristors 1, 2 can be carried out, and accordingly, no annular current will be produced.
JP55161934A 1980-11-19 1980-11-19 Method of controlling firing of pwm control converter Granted JPS5788869A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55161934A JPS5788869A (en) 1980-11-19 1980-11-19 Method of controlling firing of pwm control converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55161934A JPS5788869A (en) 1980-11-19 1980-11-19 Method of controlling firing of pwm control converter

Publications (2)

Publication Number Publication Date
JPS5788869A true JPS5788869A (en) 1982-06-02
JPH031905B2 JPH031905B2 (en) 1991-01-11

Family

ID=15744808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55161934A Granted JPS5788869A (en) 1980-11-19 1980-11-19 Method of controlling firing of pwm control converter

Country Status (1)

Country Link
JP (1) JPS5788869A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50100546A (en) * 1974-01-08 1975-08-09
JPS5310815A (en) * 1976-07-16 1978-01-31 Mitsubishi Electric Corp Inverter device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50100546A (en) * 1974-01-08 1975-08-09
JPS5310815A (en) * 1976-07-16 1978-01-31 Mitsubishi Electric Corp Inverter device

Also Published As

Publication number Publication date
JPH031905B2 (en) 1991-01-11

Similar Documents

Publication Publication Date Title
JPS5534854A (en) Controlling method of secondary winding-exciting motor
CA2007023A1 (en) Inverter circuit and a method for controlling same
JPS5788869A (en) Method of controlling firing of pwm control converter
JPS57151271A (en) Controlling method for firing of pwm controlling converter
JPS5612791A (en) Laser driving control system
JPS6469265A (en) Controlling circuit for converter
JPS6452396A (en) High frequency heating device
JPS5755772A (en) Positive and negative switching method of power converter
JPS538842A (en) High frequency heater
JPS51140491A (en) Semiconductor bidirectional switch
JPS5272445A (en) Chopper type constant voltage power source system
JPS5365922A (en) Fault detection for cyclo converter
JPS51121756A (en) Controller for voltage fluctuation
JPS5275220A (en) Automatic frequency control circuit
JPS52103726A (en) Burner controller
JPS6477308A (en) High frequency power control system
JPS5481061A (en) Semiconductor controller
JPS56162983A (en) Inverter device
JPS57211982A (en) Self-excited inverter device
JPS53127254A (en) Gain control circuit
JPS54142556A (en) Reversible converter
JPS5278353A (en) Time constant switching circuit
JPS5755774A (en) Voltage-type inverter
JPS51128743A (en) Method of induction heating for range
JPS5371337A (en) Arc furnace controlling device