An Approach to Balancing the Switching Behavior of Paralleled IGBT-Modules using a Differential-Mode Choke in a Gate-Control Loop

摘要

This paper presents a new methodology for balancing the switching behavior of paralleled IGBTpower modules controlled by a single output stage. The proposed usage of a differential mode choke synchronizes the gate currents of the parallel IGBTs and thus the switching transients of the collector current and finally the sharing of the AC-currents are equalized.