JPS5533350A - Gate circuit for gate turn-off thyristor - Google Patents

Gate circuit for gate turn-off thyristor

Info

Publication number
JPS5533350A
JPS5533350A JP10573378A JP10573378A JPS5533350A JP S5533350 A JPS5533350 A JP S5533350A JP 10573378 A JP10573378 A JP 10573378A JP 10573378 A JP10573378 A JP 10573378A JP S5533350 A JPS5533350 A JP S5533350A
Authority
JP
Japan
Prior art keywords
gate
gto
turn
coff
gate 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
JP10573378A
Other languages
Japanese (ja)
Inventor
Hiroyuki Kitamura
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 JP10573378A priority Critical patent/JPS5533350A/en
Publication of JPS5533350A publication Critical patent/JPS5533350A/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

Abstract

PURPOSE:To obtain a low-cost gate circuit of gate turn-off thyristor GTO by installing the off-driving SCR, the auxiliary SCR to give inversion to the reverse charging voltage of the off-capacitor and the reverse current blocking diode each to the off- gate circuit. CONSTITUTION:Capacitor COFF is charged up to voltage VN by power source N, and the GTO is turned on with application of pulse signal ON. If gate pulse igsoff is suplied under these conditions, SCRSOFF is turned on to flow current igof of the turn-off gate circuit and thus to turn off the GTO. When the discharge current of COFF is extinguished, COFF is reversely charged up to VR by the lead inductance component of the GTO. During this time, gate pulse igsw is applied to turn on auxiliary SCRSW, and SCRSOFF is reversely biased by the reverse current of the reverse charge voltage of COFF to turn off it. In this case, the discharging toward the gate of GTO is prevented by diode D. Thus COFF is charged again up to VN. As a result, the GTO gate circuit can be formed with the low-cost and high-reliability component parts.
JP10573378A 1978-08-30 1978-08-30 Gate circuit for gate turn-off thyristor Pending JPS5533350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10573378A JPS5533350A (en) 1978-08-30 1978-08-30 Gate circuit for gate turn-off thyristor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10573378A JPS5533350A (en) 1978-08-30 1978-08-30 Gate circuit for gate turn-off thyristor

Publications (1)

Publication Number Publication Date
JPS5533350A true JPS5533350A (en) 1980-03-08

Family

ID=14415479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10573378A Pending JPS5533350A (en) 1978-08-30 1978-08-30 Gate circuit for gate turn-off thyristor

Country Status (1)

Country Link
JP (1) JPS5533350A (en)

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