JPS5577368A - Thyristor driving circuit - Google Patents
Thyristor driving circuitInfo
- Publication number
- JPS5577368A JPS5577368A JP14939878A JP14939878A JPS5577368A JP S5577368 A JPS5577368 A JP S5577368A JP 14939878 A JP14939878 A JP 14939878A JP 14939878 A JP14939878 A JP 14939878A JP S5577368 A JPS5577368 A JP S5577368A
- Authority
- JP
- Japan
- Prior art keywords
- thyristor
- transistor
- surge
- constant current
- current circuit
- 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
- Power Conversion In General (AREA)
- Thyristor Switches And Gates (AREA)
Abstract
PURPOSE: To improve the surge dielectric strength between the anode and cathode of a thyristor and prevent the deterioration of the thyristor, by reducing the effective gate resistance of the thyristor and causing a constant current circuit to absorb a leakage current which flows out to the gate terminal of the thyristor.
CONSTITUTION: A transistor 12 is connected to a thyristor 18 and closed to maintain the surge dielectric strength between the anode and cathode of the thyristor. An effective gate resistance is approximate to the saturation resistance of the transistor 12. A constant current circuit 19 is coupled in parallel with the collector and emitter of the transistor 12 so that a leakage current flowing out to the gate terminal of the thyristor 18 is absorbed by the constant current circuit 19. As a result, the thyristor 18 does not break over but is turned on by the gate current even if a surge voltage is applied to the thyristor in its transient state. Therefore, the thyristor 18 is prevented from deteriorating.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14939878A JPS5577368A (en) | 1978-11-30 | 1978-11-30 | Thyristor driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14939878A JPS5577368A (en) | 1978-11-30 | 1978-11-30 | Thyristor driving circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5577368A true JPS5577368A (en) | 1980-06-11 |
JPS6155810B2 JPS6155810B2 (en) | 1986-11-29 |
Family
ID=15474252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14939878A Granted JPS5577368A (en) | 1978-11-30 | 1978-11-30 | Thyristor driving circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5577368A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100527528B1 (en) * | 2002-07-26 | 2005-11-09 | 미쓰비시덴키 가부시키가이샤 | Motor driving device for supplying driving current to a three-phase motor through output transistors |
JP2014042394A (en) * | 2012-08-22 | 2014-03-06 | Denso Corp | Device for driving switching element |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8256147B2 (en) | 2004-11-22 | 2012-09-04 | Frampton E. Eliis | Devices with internal flexibility sipes, including siped chambers for footwear |
US8125796B2 (en) | 2007-11-21 | 2012-02-28 | Frampton E. Ellis | Devices with faraday cages and internal flexibility sipes |
-
1978
- 1978-11-30 JP JP14939878A patent/JPS5577368A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100527528B1 (en) * | 2002-07-26 | 2005-11-09 | 미쓰비시덴키 가부시키가이샤 | Motor driving device for supplying driving current to a three-phase motor through output transistors |
JP2014042394A (en) * | 2012-08-22 | 2014-03-06 | Denso Corp | Device for driving switching element |
Also Published As
Publication number | Publication date |
---|---|
JPS6155810B2 (en) | 1986-11-29 |
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