JPS5518827A - Turn-off circuit for thyristor - Google Patents
Turn-off circuit for thyristorInfo
- Publication number
- JPS5518827A JPS5518827A JP9096778A JP9096778A JPS5518827A JP S5518827 A JPS5518827 A JP S5518827A JP 9096778 A JP9096778 A JP 9096778A JP 9096778 A JP9096778 A JP 9096778A JP S5518827 A JPS5518827 A JP S5518827A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- turn
- condenser
- gate
- counter
- 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
Abstract
PURPOSE: Counter bias supply voltage is increased and turn-off time is raduced by equipping clip circuit limiting the voltage between gate of gate control type thyristor and cathod within its counter withstand voltage.
CONSTITUTION: Voltage clip circuit consisted of diode D1 and condenser C1 between gate of gate control type thyristor 1 and cathode, then condenser C3 is connected between counter bias power source E1, of which terminal voltage charges condenser C1 by input constant voltage integrated circuit 6, whereby counter bias voltage E1 can be increased and turn-off is made high-speeding by clipping voltage exceeding the required value by condenser C1 charged to the voltage within counter withstand voltage between gate and catlod and diode D1, when controlling switching transistor Tr is "ON" and thyristor is turn-off.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9096778A JPS5518827A (en) | 1978-07-27 | 1978-07-27 | Turn-off circuit for thyristor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9096778A JPS5518827A (en) | 1978-07-27 | 1978-07-27 | Turn-off circuit for thyristor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5518827A true JPS5518827A (en) | 1980-02-09 |
Family
ID=14013257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9096778A Pending JPS5518827A (en) | 1978-07-27 | 1978-07-27 | Turn-off circuit for thyristor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5518827A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121137U (en) * | 1984-07-11 | 1986-02-07 | 東洋電機製造株式会社 | Overvoltage prevention circuit for self-extinguishing thyristors |
JPS61134136U (en) * | 1985-02-07 | 1986-08-21 |
-
1978
- 1978-07-27 JP JP9096778A patent/JPS5518827A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121137U (en) * | 1984-07-11 | 1986-02-07 | 東洋電機製造株式会社 | Overvoltage prevention circuit for self-extinguishing thyristors |
JPS61134136U (en) * | 1985-02-07 | 1986-08-21 |
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