COMMUTATION CELL, POWER CONVERTER AND COMPENSATION CIRCUIT HAVING DYNAMICALLY CONTROLLED VOLTAGE GAINS

摘要

This disclosure relates to a configuration that limits the overvoltage switching commutation cell. Commutation cell turns of the power electronic switch comprises a power electronic switch having a parasitic emitter inductance for generating a voltage when off. In addition, the commutation cell includes a dynamic compensation control circuit connected to the emitter parasitic inductance. Compensation circuit of the electronic power switch to turn the control voltage generated by the parasitic inductance emitter-is applied to the controllable part of the generated voltage through the parasitic inductance to the emitter when turned off. In addition, a pair of commutation cell and the power converter having a compensating circuit for commutation of a cell is disclosed. ;