JPS57208731A - Gate circuit for gate turn-off thyristor - Google Patents

Gate circuit for gate turn-off thyristor

Info

Publication number
JPS57208731A
JPS57208731A JP56094951A JP9495181A JPS57208731A JP S57208731 A JPS57208731 A JP S57208731A JP 56094951 A JP56094951 A JP 56094951A JP 9495181 A JP9495181 A JP 9495181A JP S57208731 A JPS57208731 A JP S57208731A
Authority
JP
Japan
Prior art keywords
gate
gto12
turned
cathode
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.)
Pending
Application number
JP56094951A
Other languages
Japanese (ja)
Inventor
Shunichi Yuya
Hideo Koo
Atsushi Kaga
Akira Uenishi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56094951A priority Critical patent/JPS57208731A/en
Publication of JPS57208731A publication Critical patent/JPS57208731A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for dc voltages or currents

Landscapes

  • Power Conversion In General (AREA)
  • Thyristor Switches And Gates (AREA)

Abstract

PURPOSE:To unburden the duty of a Zener diode, by connecting a saturable reactor parallel with the Zener diode for turn-off connected between the gate and cathode of a gate turn-off thyristor. CONSTITUTION:When a transistor 7 is turned on, the gate and cathode of a GTO12 is forward-biased and the GTO12 is turned on. When the GTO12 is to be turned off, a transistor 8 is turned on. Then, reverse current flows from a power supply 2 to the cathode and the gate and the GTO12 is turned off. Although current flows to a Zener diode 15 clamping a voltage between the cathode and gate of the GTO12, when a saturable reactor 16 is saturated with a voltage generated across the diode 15, the current flows to the reactor 16. Thus, the loss due to the diode can be reduced.
JP56094951A 1981-06-18 1981-06-18 Gate circuit for gate turn-off thyristor Pending JPS57208731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56094951A JPS57208731A (en) 1981-06-18 1981-06-18 Gate circuit for gate turn-off thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56094951A JPS57208731A (en) 1981-06-18 1981-06-18 Gate circuit for gate turn-off thyristor

Publications (1)

Publication Number Publication Date
JPS57208731A true JPS57208731A (en) 1982-12-21

Family

ID=14124246

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56094951A Pending JPS57208731A (en) 1981-06-18 1981-06-18 Gate circuit for gate turn-off thyristor

Country Status (1)

Country Link
JP (1) JPS57208731A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02136062A (en) * 1988-11-15 1990-05-24 Meidensha Corp Gate circuit of gate turn-off thyristor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02136062A (en) * 1988-11-15 1990-05-24 Meidensha Corp Gate circuit of gate turn-off thyristor

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