公开(公告)号：US09800042B2

公开(公告)日：2017-10-24

申请号：US14623036

申请日：2015-02-16

Applicant: DELPHI TECHNOLOGIES, INC.

Inventor： Marc R. Engelhardt ,  Kevin M. Gertiser ,  Vijayakumaran Nair Balakrishnan Nair ,  Peter A. Laubenstein

IPC: H02H3/20 ,  H02H1/00 ,  G01R31/02

CPC classification number: H02H1/0007 ,  G01R31/024

Abstract: A controller configured to detect fault conditions in a circuit that operates an electrical-load includes a gate-driver and a voltage-detector. The gate-driver is configured to control a gate-current to a switching-device. The gate-current is controlled such that the switching-device is operated in a linear-state when the switching-device transitions from an on-state to an off-state. The voltage-detector is configured to determine a voltage-drop across the switching-device. The controller is configured to indicate a no-fault condition when the voltage-drop is greater than a voltage-threshold for more time than a no-fault interval after the switching device is operated from the on-state to the linear-state.