JPS5465466A - Control circuit for thyristor - Google Patents
Control circuit for thyristorInfo
- Publication number
- JPS5465466A JPS5465466A JP13158077A JP13158077A JPS5465466A JP S5465466 A JPS5465466 A JP S5465466A JP 13158077 A JP13158077 A JP 13158077A JP 13158077 A JP13158077 A JP 13158077A JP S5465466 A JPS5465466 A JP S5465466A
- Authority
- JP
- Japan
- Prior art keywords
- turn
- gate
- current
- gto
- thyristor
- 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
Landscapes
- Power Conversion In General (AREA)
- Thyristor Switches And Gates (AREA)
Abstract
PURPOSE: To ensure the driving for the gate turn-off thyristor which features a miniature size, high efficiency and large capacity, by providing a capacitor which is charged by the turn-on power voltage.
CONSTITUTION: When the current flows to the base of transistor Tr1, capacitor Cg is charged via turn-on power source Eon with the polarity shown in the diagram. As a result, in addition to the current flowing resistance R1, the current flowing through acceleration circuit 1 also flows to the gate of gate turn-off thyristor GTO at the conduction time of Tr1. The turn-on gate current turns a large amount of the gate current only at the beginning of flowing to accelerate the turn-on of GTO. Thus, Tr1 is turned non-conductive after the desired conduction time. When the current flows to the base of transistor Tr2, GTO is turned off after the voltage of Cg becomes identical to turn-off power source Eoff. And the turn-off of GTO is accelerated at the beginning of the flowing of the turn-off gate current.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13158077A JPS5465466A (en) | 1977-11-04 | 1977-11-04 | Control circuit for thyristor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13158077A JPS5465466A (en) | 1977-11-04 | 1977-11-04 | Control circuit for thyristor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5465466A true JPS5465466A (en) | 1979-05-26 |
Family
ID=15061366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13158077A Pending JPS5465466A (en) | 1977-11-04 | 1977-11-04 | Control circuit for thyristor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5465466A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58142627A (en) * | 1982-02-18 | 1983-08-24 | Toshiba Corp | Gate circuit of self arc extinction type semiconductor element |
JPS62276923A (en) * | 1986-05-26 | 1987-12-01 | Hitachi Ltd | Direct parallel connection circuit for gate turn-off type thyristor |
-
1977
- 1977-11-04 JP JP13158077A patent/JPS5465466A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58142627A (en) * | 1982-02-18 | 1983-08-24 | Toshiba Corp | Gate circuit of self arc extinction type semiconductor element |
JPH0352256B2 (en) * | 1982-02-18 | 1991-08-09 | Tokyo Shibaura Electric Co | |
JPS62276923A (en) * | 1986-05-26 | 1987-12-01 | Hitachi Ltd | Direct parallel connection circuit for gate turn-off type thyristor |
JPH0529167B2 (en) * | 1986-05-26 | 1993-04-28 | Hitachi Ltd |
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