JPS5758416A - Gate control method and gate circuit for gto - Google Patents

Gate control method and gate circuit for gto

Info

Publication number
JPS5758416A
JPS5758416A JP55133986A JP13398680A JPS5758416A JP S5758416 A JPS5758416 A JP S5758416A JP 55133986 A JP55133986 A JP 55133986A JP 13398680 A JP13398680 A JP 13398680A JP S5758416 A JPS5758416 A JP S5758416A
Authority
JP
Japan
Prior art keywords
gate
turned
turn
gate circuit
gto
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
JP55133986A
Other languages
Japanese (ja)
Other versions
JPH0154891B2 (en
Inventor
Masakatsu Ogami
Yoshimoto Tamura
Katsuhiko Naganami
Hiroaki Okaji
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 JP55133986A priority Critical patent/JPS5758416A/en
Publication of JPS5758416A publication Critical patent/JPS5758416A/en
Publication of JPH0154891B2 publication Critical patent/JPH0154891B2/ja
Granted 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
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage

Landscapes

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

Abstract

PURPOSE:To prevent the destruction of GTOs, when an anode current is small, by providing a period applying a turn-on DC voltage and a turn-off DC voltage at the same time at turn-off of the GTOs. CONSTITUTION:A gate circuit 12 of a GTO10 has a turn-on gate circuit 12a and a turn-off gate circuit 12b connected between the gate and cathode and the GTO is turned on by a switch control signal A applied to a switch 16 of the gate circuit 12a. With this state, when the GTO12 is turned off, a control signal B is applied to a switch 20 of the gate circuit 12b before the switch 16 is turned of. Since the output of DC power supplies 14, 18 is applied between the gate and cathode of the GTO10 at the period tau2 when both switches 16, 20 are turned on, even if the gate current IG is small, the GTO is not turned off. The main circuit current ITS is turned off as D and a voltage between the gate and cathode is as E and no power is consumed in the GTO10, allowing to avoid destruction.
JP55133986A 1980-09-26 1980-09-26 Gate control method and gate circuit for gto Granted JPS5758416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55133986A JPS5758416A (en) 1980-09-26 1980-09-26 Gate control method and gate circuit for gto

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55133986A JPS5758416A (en) 1980-09-26 1980-09-26 Gate control method and gate circuit for gto

Publications (2)

Publication Number Publication Date
JPS5758416A true JPS5758416A (en) 1982-04-08
JPH0154891B2 JPH0154891B2 (en) 1989-11-21

Family

ID=15117706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55133986A Granted JPS5758416A (en) 1980-09-26 1980-09-26 Gate control method and gate circuit for gto

Country Status (1)

Country Link
JP (1) JPS5758416A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285388A (en) * 1976-01-02 1977-07-15 Amp Inc Electric connector and terminal of connector
JPS53129262U (en) * 1977-05-02 1978-10-13
JPS55111672A (en) * 1979-02-20 1980-08-28 Toshiba Corp Inverter gate control system using gate turn off thyristor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5285388A (en) * 1976-01-02 1977-07-15 Amp Inc Electric connector and terminal of connector
JPS53129262U (en) * 1977-05-02 1978-10-13
JPS55111672A (en) * 1979-02-20 1980-08-28 Toshiba Corp Inverter gate control system using gate turn off thyristor

Also Published As

Publication number Publication date
JPH0154891B2 (en) 1989-11-21

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