Comment on PWM resolution for switch mode power supplies.
ignotum@lemmy.world 4 days ago
I hope you mean 256/32 increments and not actual bits? I haven’t heard of a microcontroller with a pwm resolution above 16 bits
Think it depends a lot, higher frequencies means smoother current flow, higher resolution means less fluctuations, but if you have enough output filtering you can get away with pretty much anything i think
The period is divided up into 32 pieces, instead of a 256 bit width, if that makes sense. So, the frequency is 20mHz/32 = 625kHz. 0b100000 / 0x20.
Yeah, and with the load I’ll run, it’s not real critical. I just figure there has to be a name for this sort of tuning. If I know what it’s called, I can read up on it.