24
Jan
An Insulated Gate Bipolar Transistor (IGBT) is part of the setup of a VFD (Variable Frequency Drive). If you look in more depth at a VFD, one easy way to analyse it is to think of it in three main parts: the bridge converter, DC link, and the inverter. An IGBT is the inverter element in a VFD, pulsing voltage at an extremely rapid rate.