openinverter forum

Johannes, I see in the Rev 3 schematic you've added a small boost converter to raise the power supplied to the resolver excitation circuit to 15 V. Was there an issue with your original resolver circuit used with the Rev 1/2 boards, which was simply powered from the 12V power input?

Thanks.

Hi,

I wanted to be independent from the auxilary voltage, thats all. Now you can power the inverter from just 5V if you so wish and it runs. Also I changed voltage to 9.5V instead.

Sounds good, thanks!