JPS5672529A - Gate reverse bias circuit of gate turnoff thyristor - Google Patents

Gate reverse bias circuit of gate turnoff thyristor

Info

Publication number
JPS5672529A
JPS5672529A JP15018579A JP15018579A JPS5672529A JP S5672529 A JPS5672529 A JP S5672529A JP 15018579 A JP15018579 A JP 15018579A JP 15018579 A JP15018579 A JP 15018579A JP S5672529 A JPS5672529 A JP S5672529A
Authority
JP
Japan
Prior art keywords
gate
zener
voltage
reverse bias
bias circuit
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
JP15018579A
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 JP15018579A priority Critical patent/JPS5672529A/en
Publication of JPS5672529A publication Critical patent/JPS5672529A/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
    • H03K17/04—Modifications for accelerating switching
    • H03K17/0403—Modifications for accelerating switching in thyristor switches

Abstract

PURPOSE:To raise the gate reverse current and its elevating factor at the time of turnoff, and shorten the turnoff time, by using and amplifying a Zener current of the Zener diode used for the gate reverse bias circuit, so that large output voltage of the off-pulse generator can be used. CONSTITUTION:When the gate reverse bias voltage has exceeded the Zener voltage of the Zener diode 5, a Zener current flows through the rectifier diode 6, the Zener diode 5, the resistance 9 and the base and emitter of the transistor 7, and the transistor 7 is turned on. Therefore, the reverse voltage between the gate and the cathode of the gate turnoff thyristor 1 is clipped by the Zener voltage of the Zener diode 5, and the gate reverse voltage is not further applied.
JP15018579A 1979-11-19 1979-11-19 Gate reverse bias circuit of gate turnoff thyristor Pending JPS5672529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15018579A JPS5672529A (en) 1979-11-19 1979-11-19 Gate reverse bias circuit of gate turnoff thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15018579A JPS5672529A (en) 1979-11-19 1979-11-19 Gate reverse bias circuit of gate turnoff thyristor

Publications (1)

Publication Number Publication Date
JPS5672529A true JPS5672529A (en) 1981-06-16

Family

ID=15491363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15018579A Pending JPS5672529A (en) 1979-11-19 1979-11-19 Gate reverse bias circuit of gate turnoff thyristor

Country Status (1)

Country Link
JP (1) JPS5672529A (en)

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