TMDSSOLARUINVKIT: INV_PWM_2H in TMDSSOLARUINVKIT

Hi Wojcicech,

At the hardware level GPIO 3 is connected to INV_PWM_2H. Which is connected to the gate driver and its output INV_DRV_2H is driving the high side FET Q4. Was your question that you are not seeing PWM output on the GPIO3 from software?

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Thanks and regards, Pawan

Hi Pawan Nayak.

I asking about it because I saw on the osciloscope that EN_INV_PWM_2H have signal to FET Q4 and it is correct but I don't have any signal on INV_PWM_2H. Therefore my question is, is it neccessary to have INV_PWM_2H?

Yes PWM is needed for Q4. Are all the jumpers populated J19 and J32. Which build level are you using.

Regards, Pawan

Yes, they are populated. I'm using BUILD 1 for now.

Hi Wojciech,

The INV_PWM_2H is also connected to PWM-7A. Is the jumper J27 un-populated. Please remove jumper J27.

Also the ClearInvTrip variable should be set to 1.

Switch Q8(INV_PWM_2H) will only be switching for only one half of the cycle.

Thanks and regards, Pawan

Thanks, I will try it.