JPS5775033A - Gate circuit for gate turn-off thyristor - Google Patents

Gate circuit for gate turn-off thyristor

Info

Publication number
JPS5775033A
JPS5775033A JP55151918A JP15191880A JPS5775033A JP S5775033 A JPS5775033 A JP S5775033A JP 55151918 A JP55151918 A JP 55151918A JP 15191880 A JP15191880 A JP 15191880A JP S5775033 A JPS5775033 A JP S5775033A
Authority
JP
Japan
Prior art keywords
gate
voltage
current
switch
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
JP55151918A
Other languages
Japanese (ja)
Inventor
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 JP55151918A priority Critical patent/JPS5775033A/en
Publication of JPS5775033A publication Critical patent/JPS5775033A/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 increase the controllable anode current of a gate turn-off thyristor (GTO), by applying a DC voltage across the gate and the cathode of the GTO when the GTO is turned off and by applying next a DC voltage lower than this DC voltage. CONSTITUTION:A driving signal is supplied from a switch control circuit 36 to a switch 40 to turn off a GTO10. Then, a voltage of a DC power source 32 higher than the breakdown voltage is applied across a gate G and a cathode K of the GTO10, and a gate current IG starts flowing. Next, when the supply of the driving signal to the switch 40 is stopped, the driving signal is supplied to a switch 44 simultaneously; and when the gate current IG reaches a current by which an anode current iT is turned off, the gate current iG is reduced rapidly. At this time, the voltage of the DC power source 42 is set to a value equal to the breakdown voltage between the gate G and the cathode K of the GTO10.
JP55151918A 1980-10-29 1980-10-29 Gate circuit for gate turn-off thyristor Pending JPS5775033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55151918A JPS5775033A (en) 1980-10-29 1980-10-29 Gate circuit for gate turn-off thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55151918A JPS5775033A (en) 1980-10-29 1980-10-29 Gate circuit for gate turn-off thyristor

Publications (1)

Publication Number Publication Date
JPS5775033A true JPS5775033A (en) 1982-05-11

Family

ID=15529037

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55151918A Pending JPS5775033A (en) 1980-10-29 1980-10-29 Gate circuit for gate turn-off thyristor

Country Status (1)

Country Link
JP (1) JPS5775033A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705513A1 (en) * 1993-05-14 1994-11-25 Telemecanique Static circuit breaker contactor using gate turn-on (GTO) thyristors
JP2008274584A (en) * 2007-04-26 2008-11-13 Jfe Metal Products & Engineering Inc Anchor device setting method and anchor device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530238A (en) * 1978-08-24 1980-03-04 Toshiba Corp Gate driver for gate turn-off thyristor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530238A (en) * 1978-08-24 1980-03-04 Toshiba Corp Gate driver for gate turn-off thyristor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2705513A1 (en) * 1993-05-14 1994-11-25 Telemecanique Static circuit breaker contactor using gate turn-on (GTO) thyristors
JP2008274584A (en) * 2007-04-26 2008-11-13 Jfe Metal Products & Engineering Inc Anchor device setting method and anchor device

Similar Documents

Publication Publication Date Title
GB1425739A (en) Circuit for switching transistors
JPS5775033A (en) Gate circuit for gate turn-off thyristor
JPS5775032A (en) Gate circuit for gate turn-off thyristor
JPS5783830A (en) Controller using gate turn-off thyristor
JPS57138531A (en) Electric source apparatus for machining by electrical discharge
GB1362271A (en) Control drive system for power devices
JPS5758416A (en) Gate control method and gate circuit for gto
JPS5510267A (en) Switching circuit
GB898281A (en) Improvements in or relating to switching systems
JPS57123738A (en) Semiconductor switch
JPS56166764A (en) Turn-off controlling circuit for gto thyristor
SU462227A1 (en) Output protection element
JPS5710820A (en) Constant voltage power supply device
ATA502679A (en) Regulated deflection circuit with switched regulator - has capacitor between deflection winding and source terminal to regulate series circuit voltage by capacitor regulated voltage difference
JPS56137730A (en) Fet switch circuit
JPS56146898A (en) Power source device for pulse plating
JPS5586220A (en) Driving method for current breaking element
JPS5785572A (en) Snubber circut for gate turn-off thyristor
JPS57162962A (en) Gate control circuit for gate turn-off thyristor
JPS57137910A (en) Lamp supply voltage controller of copying machine
JPS57173369A (en) Gate circuit for gate turn-off thyristor
JPS5797868A (en) Transistor driving circuit of dc arc welding machine
JPS56119529A (en) Gate circuit of gate turn-off thyristor
JPS57127214A (en) Temperature controlling device
JPS5465466A (en) Control circuit for thyristor