JPS5775033A - Gate circuit for gate turn-off thyristor - Google Patents
Gate circuit for gate turn-off thyristorInfo
- 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
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.
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)
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)
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 |
-
1980
- 1980-10-29 JP JP55151918A patent/JPS5775033A/en active Pending
Patent Citations (1)
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)
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 |
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