Tool/software:
Hi,
We use the DRV8311 for our BLDC drvier, and now, the SOC pin is the below waveform and there are no complete sine wave, but the motor spec. is normal,
So please advise if this wavform is right or not? thanks.
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Tool/software:
Hi,
We use the DRV8311 for our BLDC drvier, and now, the SOC pin is the below waveform and there are no complete sine wave, but the motor spec. is normal,
So please advise if this wavform is right or not? thanks.
Hey Zhang,
We will aim to provide feedback next week.
Thanks,
Akshay
Hi Yara,
Yes, the SOA and SOB are the same as the SOC, we have no idea how to solve this issue, please advise, thanks.
Hi Zhang,
Apologies for the delay. The schematic looks good.
For the wave forms you've sent this can be normal depending on your control mode. The waveform you’re seeing on SOC (and SOA/SOB) looks reasonable if you’re using trapezoidal commutation.
Regards,
Yara