the way the gate is controlled. The disadvantages of this variation are its
complex design and the fact that it is not possible to use standard driver
stages. A simplified
control can be achieved by a capacitor connected
between the collector and the gate. Still, the logic must respond very quickly,
and this is a further challenge for thegatedrive.
Measures of balancing IGBTs connected in series
Usually, none of the processes described above are used alone, but in combinationwith
othermethods, suchas balancing resistors, snubbers andActiveClamping.