Invention Grant
- Patent Title: Commutation cell and compensation circuit therefor
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Application No.: US14781491Application Date: 2014-04-04
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Publication No.: US10587257B2Publication Date: 2020-03-10
- Inventor: Jean-Marc Cyr , Maalainine El Yacoubi , Pascal Fleury , Mohammed Amar
- Applicant: TM4 INC.
- Applicant Address: CA Boucherville
- Assignee: TM4 Inc.
- Current Assignee: TM4 Inc.
- Current Assignee Address: CA Boucherville
- Agency: McCoy Russell LLP
- International Application: PCT/CA2014/000325 WO 20140404
- International Announcement: WO2014/161080 WO 20141009
- Main IPC: G05F3/08
- IPC: G05F3/08 ; H03K17/08 ; H03K17/082 ; H02M1/32 ; H02P6/14 ; H03K17/16 ; H03K17/567

Abstract:
The present disclosure relates to a commutation cell and to a compensation circuit for limiting overvoltage across the power electronic switch of the commutation cell and for limiting a recovery current in a freewheel diode of the commutation cell. The power electronic switch has a parasitic emitter inductance. A variable gain compensation circuit generates a feedback from a voltage generated across the parasitic inductance of the emitter of the power switch at turn-on or turn-off of the power electronic switch. The compensation circuit provides the feedback to a control of the power electronic switch to reduce the voltage generated on the parasitic emitter inductance. A power converter including the commutation cell with the compensation circuit is also disclosed.
Public/Granted literature
- US20160043711A1 COMMUTATION CELL AND COMPENSATION CIRCUIT THEREFOR Public/Granted day:2016-02-11
Information query
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