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1. (WO2018133962) CONTROL DEVICE FOR DRIVING A BIPOLAR SWITCHABLE POWER SEMICONDUCTOR COMPONENT, SEMICONDUCTOR MODULE AND METHOD

Pub. No.:    WO/2018/133962    International Application No.:    PCT/EP2017/078420
Publication Date: Fri Jul 27 01:59:59 CEST 2018 International Filing Date: Wed Nov 08 00:59:59 CET 2017
IPC: H03K 17/16
H03K 17/041
H03K 17/0414
H03K 17/0412
Applicants: SIEMENS AKTIENGESELLSCHAFT
Inventors: BÖHMER, Jürgen
KLEFFEL, Rüdiger
KRAFFT, Eberhard Ulrich
NAGEL, Andreas
WEIGEL, Jan
Title: CONTROL DEVICE FOR DRIVING A BIPOLAR SWITCHABLE POWER SEMICONDUCTOR COMPONENT, SEMICONDUCTOR MODULE AND METHOD
Abstract:
The invention relates to a control device (2) for driving a bipolar switchable power semiconductor component (1), wherein the control device (2) is designed to apply an electrical voltage (U) to a gate terminal of the power semiconductor component (1) and to reduce the electrical voltage (U) for turning off the power semiconductor component (U) from a first voltage value (UB+) to a second voltage value (UB-), wherein the control device (2) is designed, for turning off the power semiconductor component (1), firstly to reduce the electrical voltage (U) from the first voltage value (UB+) to a desaturation value (Usat) and then to reduce the electrical voltage (U) from the desaturation value (Usat) to the second voltage value (UB-), wherein the desaturation value (Usat) is greater than a pinch-off voltage (UP) of the power semiconductor component (1).