Troubleshooting of STEVAL-IHM028V2

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Hello,

While I did tests with my motor control STEVAL-IHM028V2, I made a mistake to schort-circuit the three-phase output ! Then, I smelled a burning smell and no voltage is given in the three-phase output . When I checked the bottom face of the device, I noticed that some resistors (R74, R75 and R69) are burned (see attached images). Also, the W7 and W8 jumpers are short-cicuited. How could I fix this issue ?

N.B. The schematic of the STEVAL-IHM028V2 is attached.

Cordially

Tarek

Schematic.pdf

STM32 motor control

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GMABest answer

ST Technical Moderator

Hello @Tarek_ben,

You can try to replace all of these components (resistors/jumper).
Set a conservative limitation current on your external DC supply.
Verify that DC voltages are correctly generated on the board.
Monitor the current consumption when relaunching test.

If you agree with the answer, please accept it by clicking on 'Best answer'.Best regards.GMA