JPS5494865A - Thyristor converter - Google Patents
Thyristor converterInfo
- Publication number
- JPS5494865A JPS5494865A JP113378A JP113378A JPS5494865A JP S5494865 A JPS5494865 A JP S5494865A JP 113378 A JP113378 A JP 113378A JP 113378 A JP113378 A JP 113378A JP S5494865 A JPS5494865 A JP S5494865A
- Authority
- JP
- Japan
- Prior art keywords
- scr
- circuit
- voltage
- overvoltage
- scr1
- 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)
Abstract
PURPOSE: To avoid the destruction due to the overvoltage of series SCR, by connecting the voltage dividing circuit and constant voltage element in parallel with SCR, and by connecting the negative resistance circuit with the gate of SCR.
CONSTITUTION: When the conversion circuit is constituted with the series circuit of a plurality of SCR's, the negative resistance circuit 2 is in parallel between the anode and the gate of SCR1 and the constant voltage element 3 and the voltage dividing circuit 4 are connected parallelly with SCR1. Further, selecting the break over voltage VBO of SCR1>the operating voltage V2 of the circuit 2, the damage of SCR due to forward overvoltage can be avoided. Further, when selecting the inverse break down voltage of SCR Vg>the operating voltage of element 3 V, since the respective voltage can be suppressed at V3, SCR1 can be prevented from being damage due to overvoltage. When selecting V2> V3, the circuit 2 is operative before the element 3 is operated in case of forward overvoltage. Thus, the damage of SCR due to overvoltage can completely be avoided.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP113378A JPS5494865A (en) | 1978-01-11 | 1978-01-11 | Thyristor converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP113378A JPS5494865A (en) | 1978-01-11 | 1978-01-11 | Thyristor converter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5494865A true JPS5494865A (en) | 1979-07-26 |
Family
ID=11492936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP113378A Pending JPS5494865A (en) | 1978-01-11 | 1978-01-11 | Thyristor converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5494865A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843173A (en) * | 1981-08-12 | 1983-03-12 | シ−メンス・アクチエンゲゼルシヤフト | Circuit for firing power thyristor |
-
1978
- 1978-01-11 JP JP113378A patent/JPS5494865A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843173A (en) * | 1981-08-12 | 1983-03-12 | シ−メンス・アクチエンゲゼルシヤフト | Circuit for firing power thyristor |
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