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Part Number: LAUNCHXL-F28379D
My customer has some issues in his evaluation of a C2000 motor control solution:
The Launchpad with the 3PHGANINV board works fine with the motors, using code from ControlSuite.
Then they tried to use 2 legs only of the 3PHGANINV so to have an H-bridge. They programmed the epwm2 and epwm3 using Simulink and saw on an oscilloscope that the signals were correctly generated. But there is no power transferred, so the GAN FETs are not switching. Vin = 30 V was used. Could you help there?
Also, they would like to add their architecture to DesignDrive so to benefit from the SFRA features. Could you please advise how to proceed so they could use the SFRA and tune the compensator for their application?
There should be no issue with H bridge operation. If the three PWM config would work fine, why not two? If anything, I will advise them to review the GaN inverter schematic and see where they miss it. Would start from ENABLE signal going into the buffer.
If they are evaluating the FCL example, then they also have access to the SFRA library. This example plots the loop Bode plot. If not, here below is the where the example is available in controsuite.
Compensator design will have to be performed by them and the SFRA will be able to show what the resultant loop plot is.
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In reply to Ramesh Ramamoorthy:
Let me know if the issue is all resolved. If so, pls close this thread.
In reply to hyuruk:
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