JPS57208732A - Gate driving circuit for gate turn-off thyristor - Google Patents

Gate driving circuit for gate turn-off thyristor

Info

Publication number
JPS57208732A
JPS57208732A JP56094956A JP9495681A JPS57208732A JP S57208732 A JPS57208732 A JP S57208732A JP 56094956 A JP56094956 A JP 56094956A JP 9495681 A JP9495681 A JP 9495681A JP S57208732 A JPS57208732 A JP S57208732A
Authority
JP
Japan
Prior art keywords
gate
gto1
turn
cathode
thyristor
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
JP56094956A
Other languages
Japanese (ja)
Inventor
Michiharu Ishido
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 JP56094956A priority Critical patent/JPS57208732A/en
Publication of JPS57208732A publication Critical patent/JPS57208732A/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

Abstract

PURPOSE:To reduce the generated loss of a Zener diode for voltage cliper, by supplying base current of a transistor (TR) for inverse bias supply which is conducted when a gate turn-off thyristor GTO is turned off, through the cathode and gate of the GTO. CONSTITUTION:A GTO1 is turned on by applying a signal 14 to a transistor (TR)10. To turn off the GTO1, a signal 12a is applied to a TR6. Then, a part of a current via the cathode and gate of the GTO1 is applied to the base of the TR6. Thus, the TR6 is turned on, an inverted bias is applied to the cathode and gate of the GTO1 and the GTO1 tends to turn off. Thus, the impedance between the cathode and gate of the GTO1 starts increasing and the base current of the TR6 is reduced, then the voltage is dropped across a Zener diode 3 and the current flowing to the diode 3 is reduced.
JP56094956A 1981-06-18 1981-06-18 Gate driving circuit for gate turn-off thyristor Pending JPS57208732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56094956A JPS57208732A (en) 1981-06-18 1981-06-18 Gate driving circuit for gate turn-off thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56094956A JPS57208732A (en) 1981-06-18 1981-06-18 Gate driving circuit for gate turn-off thyristor

Publications (1)

Publication Number Publication Date
JPS57208732A true JPS57208732A (en) 1982-12-21

Family

ID=14124378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56094956A Pending JPS57208732A (en) 1981-06-18 1981-06-18 Gate driving circuit for gate turn-off thyristor

Country Status (1)

Country Link
JP (1) JPS57208732A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60115A (en) * 1983-06-15 1985-01-05 Fuji Electric Co Ltd Gate driving circuit of gate turn-off thyristor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60115A (en) * 1983-06-15 1985-01-05 Fuji Electric Co Ltd Gate driving circuit of gate turn-off thyristor

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