The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 05, 2019
Filed:
Sep. 13, 2016
Tm4 Inc., Boucherville, CA;
Maalainine El Yacoubi, Montréal, CA;
Marion Nourry, Sorel-Tracy, CA;
Benoit Blanchard St-Jacques, McMasterville, CA;
Pascal Fleury, Sainte-Madeleine, CA;
Jean-Marc Cyr, Candiac, CA;
Mohammed Amar, Montréal, CA;
TM4, Inc., Boucherville, Quebec, CA;
Abstract
The present disclosure relates to a power converter configured for limiting switching overvoltage. The power converter comprises a bottom commutation cell that includes a bottom power electronic switch and a bottom compensation circuit connected to a bottom parasitic inductance. The bottom compensation circuit applies a sample of the voltage induced across the bottom parasitic inductance at turn-off of the bottom power electronic switch to the reference node of the bottom gate driver. The power converter also comprises a top commutation cell that includes top power electronic switch and a top compensation circuit connected to the bottom parasitic inductance. The top compensation circuit applies a sample of the voltage induced across the bottom parasitic emitter upon turn-off of the top power electronic switch to the reference node of the top gate driver. The top and bottom commutation cells are part of a loop, being connected at a junction of the collector of the bottom power electronic switch and the emitter of the top power electronic switch.