Why the Inverter Board (DEVKIT-MOTORGD) doesn't draw current

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Why the Inverter Board (DEVKIT-MOTORGD) doesn't draw current

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Ahmed_Abd_El-Hafez
Contributor III

Hello NXP team.

The Inverter board (DEVKIT-MOTORGD) That I have just bought since only a month has stopped drawing a current. Before this, it works properly and drive the motor correctly but sometimes it doesn't draw current and sometimes (mostly) it does but suddenly I found that it can't draw any current from the supply. Which part must I suspect? May it be the Gate Driver or? if it is, then what are the reasons for such probable damage of it [SW or HW]?Is there a limitation on the length of the time of triggering GD3000? It is the second time I loses an inverter board by the same observation in short time. The application works on only 12V and less than 5A which is less than the rated values of the board. I uses MPC5744P MCU board.  The only change is that we made the initialization of GD3000 occurs once the code is run (once the MCU board is connected to the laptop) not after pressing start. I think this change has no effect. Please help in justifying this strange behavior.

Best Regards

Ahmed

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