Invention Grant
- Patent Title: Device for switching a semiconductor-based switch and sensor for detecting a current change velocity at a semiconductor-based switch
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Application No.: US15331694Application Date: 2016-10-21
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Publication No.: US10224722B2Publication Date: 2019-03-05
- Inventor: René Hopperdietzel
- Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
- Current Assignee Address: DE Munich
- Agency: Perkins Coie
- Agent Michael Glenn
- Priority: EP14165895 20140424; DE102014214252 20140722
- Main IPC: H02J4/00
- IPC: H02J4/00 ; G01R19/14 ; H01L23/62 ; H03K17/082 ; H03K17/16 ; G01R19/12 ; G01R15/18 ; H02M1/00 ; H02M1/08

Abstract:
A device for switching a semiconductor-based switch includes a terminal that is configured to be connected to a control terminal of the semiconductor-based switch. A controllable activation voltage source is configured to provide a time-varying activation voltage potential. A controllable resistive circuit includes at least two ohmic resistances connected in parallel that are controllable such that at least three resistance values of the parallel connection result. A control device is configured to control the controllable activation voltage source and the controllable resistive circuit independently of one another. The controllable activation voltage source and the controllable resistive circuit are connected to a series connection connected to the terminal. The control device is configured to control the controllable activation voltage source and the controllable resistive circuit in a time-varying manner to obtain time-varying resistance values of the controllable resistive circuit and the time-varying activation voltage potential of the controllable activation voltage source.
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