JPS5553176A - Thyristor converter - Google Patents
Thyristor converterInfo
- Publication number
- JPS5553176A JPS5553176A JP12431478A JP12431478A JPS5553176A JP S5553176 A JPS5553176 A JP S5553176A JP 12431478 A JP12431478 A JP 12431478A JP 12431478 A JP12431478 A JP 12431478A JP S5553176 A JPS5553176 A JP S5553176A
- Authority
- JP
- Japan
- Prior art keywords
- thyristor
- light
- photo thyristor
- signal
- photo
- 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.)
- Granted
Links
Landscapes
- Thyristors (AREA)
- Protection Of Static Devices (AREA)
- Power Conversion In General (AREA)
Abstract
PURPOSE: To improve responsibility of a thyristor converter by triggering by gate control light signals a photo thyristor having a gate part which gives light signals of two guides while triggering it forcedly by light signals of an overvoltage detecting circuit equipped in parallel with the photothyristor.
CONSTITUTION: A gate control signal produced by a signal generator 2 is converted into a light signal by a light emitting device 3 and this light signal is supplied to a photo thyristor 1 through a light guide 4. The photo thyristor 1 turns on and the thyristor converter is brought into prescribed motion. On the other hand, if a forward overvoltage is added to the photo thyristor 1 during operation of the thyristor conveter or during the floating, the prescribed current is applied to a light emitting device 6 and a light signal produces. This light signal makes a trigger signal given to the gate part of the photo thyristor 1 through a light guide 5, turns on the photo thyristor 1 and protects the photo thyristor form the forward overvoltage.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12431478A JPS6019230B2 (en) | 1978-10-09 | 1978-10-09 | thyristor converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12431478A JPS6019230B2 (en) | 1978-10-09 | 1978-10-09 | thyristor converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5553176A true JPS5553176A (en) | 1980-04-18 |
JPS6019230B2 JPS6019230B2 (en) | 1985-05-15 |
Family
ID=14882255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12431478A Expired JPS6019230B2 (en) | 1978-10-09 | 1978-10-09 | thyristor converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6019230B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5911772A (en) * | 1982-07-12 | 1984-01-21 | Kansai Electric Power Co Inc:The | Overvoltage protecting device of optically firing thyristor |
JPH0421353A (en) * | 1990-05-14 | 1992-01-24 | Toshiba Corp | Method for protecting thyristor valve |
-
1978
- 1978-10-09 JP JP12431478A patent/JPS6019230B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5911772A (en) * | 1982-07-12 | 1984-01-21 | Kansai Electric Power Co Inc:The | Overvoltage protecting device of optically firing thyristor |
JPH0258849B2 (en) * | 1982-07-12 | 1990-12-10 | Kansai Denryoku Kk | |
JPH0421353A (en) * | 1990-05-14 | 1992-01-24 | Toshiba Corp | Method for protecting thyristor valve |
JPH0793811B2 (en) * | 1990-05-14 | 1995-10-09 | 株式会社東芝 | Thyristor valve protection device |
Also Published As
Publication number | Publication date |
---|---|
JPS6019230B2 (en) | 1985-05-15 |
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