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Answer Posted / sunil thakur
insulated gate bipolar transistor is a combination of BJT and MOSFET . it is a three terminal power semiconductor device primarily used as a electronic switch witch as it was developed come to combine high efficiency and fast switching its used VFD ,Electrical circuit . air conditioner etc
the IGBT is a semiconductor with four alternating layers (P-N-P-N) that are control by metal _oxide -semiconductor (MOS) gate structure without regenerative action
Since its design to turn ON and OFF rapidly amplifier that use it often synthesize complex wave forms with pules width modulation and low pass filters
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