Invention Grant
- Patent Title: Method and control device for controlling a commutation process of a load current between switching modules
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Application No.: US16229733Application Date: 2018-12-21
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Publication No.: US10651719B2Publication Date: 2020-05-12
- Inventor: Hendrik Gloes , Martin Geske , Piotr Szczupak
- Applicant: GE Energy Power Conversion Technology Limited
- Applicant Address: GB Warwickshire
- Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED
- Current Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED
- Current Assignee Address: GB Warwickshire
- Agency: Wood IP LLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7a9f8d53
- Main IPC: H02M1/08
- IPC: H02M1/08 ; H03K17/16 ; H02M7/538 ; H02M1/44 ; H03K17/687 ; H02M1/00

Abstract:
A method and a device for controlling a commutation process of a load current between two switching modules are disclosed that each have a MOSFET that can be controlled by a gate-source voltage, and an intrinsic-body inverse diode. To reduce oscillations in the down-commutation of the inverse diodes caused by parasitic circuit parameters, after switching off one of the switching modules, the gate-source control voltage applied to this switching module is temporarily switched off until being increased again the vicinity of the threshold voltage for switching on the MOSFET, before and while the other switching module is switched on, in order to commutate the current from the inverse diode of the one switching module to the MOSFET of the other switching module.
Public/Granted literature
- US20190199193A1 METHOD AND DEVICE FOR CONTROLLING MOSFET SWITCHING MODULES Public/Granted day:2019-06-27
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