Patent ID: 7368972

Claim:
Gate control device of a power IGBT semiconductor component, comprising: an input circuit configured to deliver at its output a reference gate voltage in response to a control command of the IGBT component, the input circuit being a ramp generator circuit; a stage configured to amplify a current of the reference gate voltage which is configured to deliver a gate current to the IGBT component, the amplification stage comprising, an ignition circuit, and a rapid extinction circuit including a bipolar transistor; a slow extinction circuit connected between a gate of the IGBT component and the output of the input circuit; a circuit configured to detect a collector-emitter voltage of the IGBT component; and a feedback circuit connected to a output of the detection circuit, and configured to deliver a feedback signal that acts on the rapid extinction circuit and on the reference gate voltage wherein the bipolar transistor has a base driven by the output of the ramp generator circuit and by the feedback signal.