Invention Grant
- Patent Title: Commutation cell, power converter and compensation circuit having dynamically controlled voltage gains
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Application No.: US15035454Application Date: 2014-11-12
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Publication No.: US09882465B2Publication Date: 2018-01-30
- Inventor: Christian Pronovost , Jean-Marc Cyr
- Applicant: TM4 INC.
- Applicant Address: CA Boucherville, Quebec
- Assignee: TM4 INC.
- Current Assignee: TM4 INC.
- Current Assignee Address: CA Boucherville, Quebec
- Agency: Fay Kaplun & Marcin, LLP
- International Application: PCT/CA2014/051085 WO 20141112
- International Announcement: WO2015/070347 WO 20150521
- Main IPC: H02M1/32
- IPC: H02M1/32 ; H02M7/537 ; H02M1/08 ; H03K17/16 ; H03K17/081 ; H02M3/156 ; H02M7/217 ; H02M1/34 ; H03K17/04
Abstract:
A commutation cell is configured for limiting switching overvoltage. The commutation cell includes a power electronic switch having a parasitic emitter inductance through which a voltage is generated upon turning off of the power electronic switch. The commutation cell also includes a dynamically controlled compensation circuit connected to the parasitic emitter inductance. The compensation circuit applies a controllable portion of the voltage generated through the parasitic emitter inductance at turn-off of the power electronic switch to control the voltage generated through the parasitic emitter inductance. A power converter includes a pair of commutation cells and a compensation circuit of the commutation cell.
Public/Granted literature
- US20160294275A1 Commutation Cell, Power Converter and Compensation Circuit Having Dynamically Controlled Voltage Gains Public/Granted day:2016-10-06
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