Gate drive for IGBT

GD C885

ABB's IGBT (Insulated Gate Bipolar Transistor) gate drive is designed according to customer specifications.

The IGBT gate drive controls large IGBTs in high power converters for traction and stationary applications up to 2500 V and 1200 A and more. Optical fibers are used to send the command signal to the gate driver and to transmit the status feedback.

An internal integrated transformer (100 Vac, 25kHz) electrically isolates the supply from the output (high voltage).

The saturation voltage is monitored during the on-state. In case of desaturation the IGBT is turned off softly. The IGBT gate driver output is short circuit proof.

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