JPS5780259A - Gate control circuit for gate turn off thyristor - Google Patents

Gate control circuit for gate turn off thyristor

Info

Publication number
JPS5780259A
JPS5780259A JP55154675A JP15467580A JPS5780259A JP S5780259 A JPS5780259 A JP S5780259A JP 55154675 A JP55154675 A JP 55154675A JP 15467580 A JP15467580 A JP 15467580A JP S5780259 A JPS5780259 A JP S5780259A
Authority
JP
Japan
Prior art keywords
gate
gto thyristor
turned
thyristor
cathode
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
JP55154675A
Other languages
Japanese (ja)
Inventor
Kazuo Tominaga
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 JP55154675A priority Critical patent/JPS5780259A/en
Publication of JPS5780259A publication Critical patent/JPS5780259A/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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/06—Circuits specially adapted for rendering non-conductive gas discharge tubes or equivalent semiconductor devices, e.g. thyratrons, thyristors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Conversion In General (AREA)
  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To obtain a large OFF gate current by providing a small capacity GTO thyristor in a gate circuit of the GTO thyristor. CONSTITUTION:When a transistor 2 is turned OFF, a current flows from a power source 3 to a gate cathode of the GTO thyristor 12 through a resistor 4 and a capacitor 13. The GTO thyristor 12 is turned ON. As a result a current flows through the cathode gate of the GTO thyristor 1 and the GTO thyristor is turned OFF. When the transistor 2 is turned ON, the electric charge in the capacitor 13 is discharged through the cathode gate of the GTO thyristor 12, and the GTO thyristor 12 is turned OFF. As a result, electromagnetic energy in a current transformer 8 is flowed through a transistor 11 and the gate cathode of the GTO thyristor 1, and the GTO thyristor 1 is turned ON. Since the OFF gate curent of the GTO thyristor 1 is controlled by the GTO thyristor 12, the large OFF gate current can be flowed.
JP55154675A 1980-11-05 1980-11-05 Gate control circuit for gate turn off thyristor Pending JPS5780259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55154675A JPS5780259A (en) 1980-11-05 1980-11-05 Gate control circuit for gate turn off thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55154675A JPS5780259A (en) 1980-11-05 1980-11-05 Gate control circuit for gate turn off thyristor

Publications (1)

Publication Number Publication Date
JPS5780259A true JPS5780259A (en) 1982-05-19

Family

ID=15589441

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55154675A Pending JPS5780259A (en) 1980-11-05 1980-11-05 Gate control circuit for gate turn off thyristor

Country Status (1)

Country Link
JP (1) JPS5780259A (en)

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