DETECTION DEVICE FOR POWER COMPONENT DRIVERS, AND DETECTION METHOD THEREOF

摘要

A detection device for power component drivers, and a detection method thereof are provided, where the detection device determine the state of a plurality of upper arm switches and the state of a plurality of under arm switches in a power component driver when different stages of a detection procedure are performed on the upper arm switches and the under arm switches. The detection device then performs a protection procedure according to the state of the upper arm switches and the state of the under arm switches.

主权项

1. A detection device, coupled with a direct current (DC) power source, a storage module, a power component driver, and a motor, wherein the power component driver comprises a plurality of switch sets, each of the plurality of switch sets comprises at least a upper arm switch and at least a under arm switch, and the detection device comprises:
a DC measuring module, coupled with the storage module, and configured to measure a voltage of the storage module to generate a first detection signal; a control module, coupled with the DC measuring module and the power component driver, and configured to determine whether the plurality of switch sets are short-circuited, according to the first detection signal, and select and enable the at least one upper arm switch or the at least one under arm switch of one of the plurality of switch sets when the plurality of switch sets are not short-circuited; and a signal detection module, coupled with the power component driver and the motor, and configured to convert a voltage, which is supplied by the plurality of switch sets to drive the motor, to generate a second detection signal according to which the control module determines whether the selected upper arm switch or under arm switch malfunctions.