Invention Application
- Patent Title: SYSTEM AND METHOD FOR RAPID CURRENT SENSING AND TRANSISTOR TIMING CONTROL
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Application No.: US15682940Application Date: 2017-08-22
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Publication No.: US20190068045A1Publication Date: 2019-02-28
- Inventor: Ramanujam Ramabhadran , Robert James Thomas , Ahmed Elasser
- Applicant: General Electric Company
- Main IPC: H02M1/08
- IPC: H02M1/08 ; H01F27/42 ; H01F27/29 ; H02M1/32 ; H02M1/44 ; H05K1/11 ; H05K1/18 ; H05K1/16 ; H05K1/02

Abstract:
A power electronics circuit is disclosed that includes a switching circuit comprising a first solid-state device coupled in series with a second solid-state device, with at least the first solid-state device comprising a solid-state switch having a gate terminal. The power electronics circuit also includes a current sense transformer positioned between the first and second solid-state devices and configured to sense a current flowing on a conductive trace connecting the first and second solid-state devices, and a controller coupled to the switching circuit and the current sense transformer so as to be in operable communication therewith. The controller is programmed to receive a current sense signal from the current sense transformer indicative of the current flowing on the conductive trace and modulate a gate voltage to the gate terminal of the first solid-state device based on the received current sense signal, so as to control switching thereof.
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