Invention Grant
- Patent Title: Switching of paralleled reverse conducting IGBT and wide bandgap switch
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Application No.: US16411716Application Date: 2019-05-14
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Publication No.: US11043943B2Publication Date: 2021-06-22
- Inventor: Umamaheswara Vemulapati , Ulrich Schlapbach , Munaf Rahimo
- Applicant: ABB Power Grids Switzerland AG
- Applicant Address: CH Baden
- Assignee: ABB Power Grids Switzerland AG
- Current Assignee: ABB Power Grids Switzerland AG
- Current Assignee Address: CH Baden
- Agency: Slater Matsil, LLP
- Priority: EP16198704 20161114
- Main IPC: H03K5/08
- IPC: H03K5/08 ; H03K17/08 ; H03K3/02 ; H03K17/16 ; H03K17/687 ; H03K17/567 ; H03K17/12 ; H03K17/74

Abstract:
A semiconductor module comprises reverse conducting IGBT connected in parallel with a wide bandgap MOSFET, wherein each of the reverse conducting IGBT and the wide bandgap MOSFET comprises an internal anti-parallel diode. A method for operating a semiconductor module with the method including the steps of: determining a reverse conduction start time, in which the semiconductor module starts to conduct a current in a reverse direction, which reverse direction is a conducting direction of the internal anti-parallel diodes; applying a positive gate signal to the wide bandgap MOSFET after the reverse conduction start time; determining a reverse conduction end time based on the reverse conduction start time, in which the semiconductor module ends to conduct a current in the reverse direction; and applying a reduced gate signal to the wide bandgap MOSFET a blanking time interval before the reverse conduction end time, the reduced gate signal being adapted for switching the wide bandgap MOSFET into a blocking state.
Public/Granted literature
- US20190273493A1 SWITCHING OF PARALLELED REVERSE CONDUCTING IGBT AND WIDE BANDGAP SWITCH Public/Granted day:2019-09-05
Information query
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