JPS568923A - Gate circuit of gate turn-off thyristor - Google Patents

Gate circuit of gate turn-off thyristor

Info

Publication number
JPS568923A
JPS568923A JP8346879A JP8346879A JPS568923A JP S568923 A JPS568923 A JP S568923A JP 8346879 A JP8346879 A JP 8346879A JP 8346879 A JP8346879 A JP 8346879A JP S568923 A JPS568923 A JP S568923A
Authority
JP
Japan
Prior art keywords
gate circuit
current
gate
turn
gto11
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
JP8346879A
Other languages
Japanese (ja)
Other versions
JPS601778B2 (en
Inventor
Yukio Watanabe
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54083468A priority Critical patent/JPS601778B2/en
Publication of JPS568923A publication Critical patent/JPS568923A/en
Publication of JPS601778B2 publication Critical patent/JPS601778B2/en
Expired 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 improve reliability while preventing an electric power loss from increasing by isolating a gate circuit for large electric current that cuts off large electric current and a gate circuit, at the time of a normal load, that cuts off electric current flowing through GTO (gate turn-off thyristor) at any time. CONSTITUTION:Gate circuit 16 is that for large electric current during an accident, etc., and gate circuit 15 normally cuts off the anode current of GTO11 under a turn- off command from terminal (a). For an increase in the anode current of GTO11 during the accident, an overcurrent is detected on the basis of current criterion 19 and amplified by amplifier 20 to supply the turn-off command to terminal (c) of gate circuit 16 for large current, thereby cutting off the anode current of GTO11.
JP54083468A 1979-07-03 1979-07-03 Gate circuit of gate turn-off thyristor Expired JPS601778B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54083468A JPS601778B2 (en) 1979-07-03 1979-07-03 Gate circuit of gate turn-off thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54083468A JPS601778B2 (en) 1979-07-03 1979-07-03 Gate circuit of gate turn-off thyristor

Publications (2)

Publication Number Publication Date
JPS568923A true JPS568923A (en) 1981-01-29
JPS601778B2 JPS601778B2 (en) 1985-01-17

Family

ID=13803295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54083468A Expired JPS601778B2 (en) 1979-07-03 1979-07-03 Gate circuit of gate turn-off thyristor

Country Status (1)

Country Link
JP (1) JPS601778B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60148301A (en) * 1984-01-12 1985-08-05 Toshiba Corp Protecting method of inverter for vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60148301A (en) * 1984-01-12 1985-08-05 Toshiba Corp Protecting method of inverter for vehicle
JPH0628481B2 (en) * 1984-01-12 1994-04-13 株式会社東芝 Electric vehicle power converter protection device

Also Published As

Publication number Publication date
JPS601778B2 (en) 1985-01-17

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