What is function of IGBT? How it works?

Answer Posted / shaweta

The insulated gate bipolar transistor or IGBT is a three
terminal power semiconductor device used for high
efficiency and fast switching
The IGBT combines the simple gate-drive characteristics of
the MOSFETs with the high-current and low–saturation-
voltage capability of bipolar transistors by combining an
isolated-gate FET for the control input, and a bipolar
power transistor as a switch, in a single device. The IGBT
is used in medium- to high-power applications such as
switched-mode power supply, traction motor control and
induction heating. Large IGBT modules typically consist of
many devices in parallel and can have very high current
handling capabilities in the order of hundreds of amps with
blocking voltages of 6,000 V.

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