33.如何减轻米勒电容所引起的寄生导通效应

33.如何减轻米勒电容所引起的寄生导通效应
Mitigation Methods for Parasitic Turn-on
effect due to Miller Capacitor

White Paper

Introduction Parasitic Turn-on Mitigation Solutions
One of the common problems faced when switching There are three classical solutions to the above problem;
an IGBT is parasitic turn-on due to Miller capacitor. This the first being to vary the gate resistor (Figure 2), second
effect is noticeable in single supply gate driver (0 to to add a capacitor between gate and emitter (Figure
+15V). Due to this gate-collector coupling, a high dV/ 3) and third to use negative gate drive (Figure 4). A
dt transient created during IGBT turn-off can induce