公开(公告)号：US20160238652A1

公开(公告)日：2016-08-18

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: G01R31/28 ,  H02H1/00

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.

Abstract translation: 一种被配置为检测操作电负载的电路中的故障状况的控制器包括栅极驱动器和电压检测器。 栅极驱动器被配置为控制到开关器件的栅极电流。 控制栅极电流，使得当开关器件从导通状态转换到截止状态时，开关器件工作在线性状态。 电压检测器被配置为确定开关装置两端的电压降。 控制器被配置为在开关器件从接通状态操作到线性状态之后，当电压下降大于电压阈值时比无断续间隔更长时间指示无故障状态。