/diy/ - Do It Yourself

>>1951058
>I do not know what you mean by PWM controller
It's what they call those cheap solar charge controllers that really just disconnect the panel when the battery is charged or it's dark. They're dirt cheap because it's just a mosfet and a microcontroller that decides when to turn it off.
>You could implement MPPT in a regular buck/boost converter.
Yes, but to make it worthwhile your buck converter needs to be very high efficiency over a wide range. And that means lower frequency (to reduce switching losses) so high inductance, and also low resistance inductor.