Special insulated gate bipolar transistor inspection equipment for container terminal

Abstract

The invention relates to special insulated gate bipolar transistor inspection equipment for a container terminal, and the equipment comprises a power conversion module, a DC voltage supply module, a boost module, an automatic turn-off module, a voltage detection display module, a trigger operation module, a trigger current display module, a trigger voltage display module, and a sound prompt module. The power supply conversion module comprises a DC main power supply module and a DC auxiliary power supply module. The DC main power supply module is coupled with a voltage stabilization module. By arranging the boosting module, the direct-current voltage supply module and the automatic turn-off module, the device can check faults in an insulated gate bipolar transistor in the driver more accurately; through the arrangement of the trigger operation module, the trigger current display module and the trigger voltage display module, a person can detect the voltage and the current after the insulated gate bipolar transistor is triggered under the condition of power failure, and the performance of the insulated gate bipolar transistor is further judged.

Description

technical field [0001] The present application relates to the technical field of detection circuits, in particular to a special insulated gate bipolar transistor inspection device for container terminals. Background technique [0002] Gantry cranes, Zhenhua bridge cranes and rail cranes are common hoisting equipment on the wharf. These automated equipment have a large number of insulated gate bipolar transistors of various brands and specifications. [0003] As the service life and frequency of use of the equipment increase, the bipolar transistors in the gantry crane are prone to aging. However, the faults of insulated gate bipolar transistors are often short-circuit, open-circuit damage, or device insulation performance is reduced, resulting in concealed faults of the device. In the existing detection means, when the equipment is powered off, an ohmmeter is used to measure the resistance between the source and the drain of the IGBT to determine whether it is damaged. [...

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, since the closing process of the insulated gate bipolar transistor is equivalent to an open circuit, the existing detection method with the ammeter can only detect whether the source and the drain of the insulated gate bipolar transistor are connected. short circuit, and it is impossible to judge the situation of open circuit and insulation performance degradation

Images