JPS5492166A - Semiconductor switch unit - Google Patents
Semiconductor switch unitInfo
- Publication number
- JPS5492166A JPS5492166A JP16026677A JP16026677A JPS5492166A JP S5492166 A JPS5492166 A JP S5492166A JP 16026677 A JP16026677 A JP 16026677A JP 16026677 A JP16026677 A JP 16026677A JP S5492166 A JPS5492166 A JP S5492166A
- Authority
- JP
- Japan
- Prior art keywords
- current
- trqm
- supplies
- thyristor
- winding
- 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 perform stable commutation by providing a transformer which supplies a base current answering to the collector current of a commutating transistor and that which supplies a reverse bias to a main thyrister.
CONSTITUTION: When a current is flowing to load Z with thyristor CR ignited, turning ON auxiliary transistor TrQC applies the voltage of control power supply Vc to the series circuit of windings N12 and N22 of transformers T1 and T2, the induced voltage of winding N21 of T2 supplies base current (iB) of commutating TrQM to turn On TrQM, and the sum of induced voltages of windings N11 and N21 of T1 and T2 supplies a reverse voltage to thyristor CR. As a result thyristor current (iCR) is commutated as collector current (ic) toward TrQM and afterward, TrQM commutates all current (iCR) while maintaining itself in the saturation state. In this case, stable commutation can be performed by automatically decreasing or increasing current (iB) via induced current (i2) of winding N12 corresponding to current (ic) and by decreasing a control current with a winding ratio between transformers T1 and T2 made large.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16026677A JPS5492166A (en) | 1977-12-29 | 1977-12-29 | Semiconductor switch unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16026677A JPS5492166A (en) | 1977-12-29 | 1977-12-29 | Semiconductor switch unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5492166A true JPS5492166A (en) | 1979-07-21 |
Family
ID=15711275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16026677A Pending JPS5492166A (en) | 1977-12-29 | 1977-12-29 | Semiconductor switch unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5492166A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60121969A (en) * | 1983-11-14 | 1985-06-29 | タンデム コンピユーターズ インコーポレーテツド | Constant current drive unit for switching power supply source |
-
1977
- 1977-12-29 JP JP16026677A patent/JPS5492166A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60121969A (en) * | 1983-11-14 | 1985-06-29 | タンデム コンピユーターズ インコーポレーテツド | Constant current drive unit for switching power supply source |
JPH06106023B2 (en) * | 1983-11-14 | 1994-12-21 | タンデム コンピユーターズ インコーポレーテツド | Switching device for switching power supply |
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