Flex GUI modifications

[AmerKarout]

I am currently using the GD3160 XM3 half-bridge evaluation kit along with Flex GUI to do double pulse test and short circuit test. I want to use the freedom Freescale board to control a mechanical contactor in my test to connect and disconnect  the Dc link capacitors. Is there any way to do this in the Flex GUI or can I get the source code of the Flex GUI and make this modification ??

[AmerKarout]

Hi David, 

Thank you so much for your reply. I understand your point.

I also have another problem in the GD3160 XM3 half-bridge evaluation kit. I am doing a short-circuit test on 1.2 kV devices and every time the  DUT failed in the short circuit test, the GD3160 IC burns and I had to replace to be able to do this again. Any thoughts about solving this problem?

Best regards,

Amer

[diazmarin09]

Hello Amer,

Thank you for using the NXP community.

Based on the user manual, are you configuring the J9 and J10 property for the short-circuit testing? Incorrect configuration of PWMALT pins prevent short-circuit test by enforcing dead time.

Are you using the load coil?

Regards,

David

[AmerKarout]

Hi David,

Thank you so much for your reply. Yes J9 and J10 are correctly configured for the short circuit tests and I can do the short circuit test without any problem. But the main problem is when the DUT (the device that I am testing ) fails under a short circuit, the gate drive IC burns and does not fail to work again. When I am replacing the IC and everything is back to work.

For the load coil, no I am not using a load coil as I am doing hard short ciruit test.

Best regards,

Amer

[diazmarin09]

Hello Amer,

Could you please share more information about the device under test? Could you please share more information about your design? How many boards have you tested and failed?

Regards,

David

[AmerKarout]

regarding the DUT: the circuit is designed to test different DUTs, however, the last failure happened with CREE device (c2m0080120d) and (c3m0016120k) and ST.

We have 4 failures so far. we can send you one of the failed ICs if it will help.

Regarding the design itself it is hard-short circuit without a load inductor. The circuit has enough protection to disconnect the supply when the DUT fails. 

Let me know if you need any further information, we probably can have a quick Teams call to explain further if this will help.

FYI:@m.abdelkader.1@warwick.ac.uk

[diazmarin09]

Hello Amer,

Thank you for contribution.

Have you tried to use the MOSFET that we recommend? I mean, XM3 SiC MOSFET module (CAB450M12XM3).

Regards,

David

[diazmarin09]

Hello,

I hope all is great with you. Thank you for using the NXP communities.

Flex GUI is not intended to support external equipment other than our evaluation hardware and gate drivers. The FlexGUI source code is not available to share. Please accept my apologies.

I hope this information helps.

Regards,

David