7/22 Initial sketch working on mppt controller.

A project log for solar powered boat

low-cost methods to power boats from solar power

sean-depagniersean d'epagnier 08/29/2020 at 18:580 Comments

It uses a fixed duty cycle of 80%.   This is a proof of concept that I could get more power from the panels than a regular controller or direct battery connection.  The array of ceramic capacitors have a large inrush current, much more than electrolytics.  For this reason, the controller must carefully ramp up the duty cycle from zero to avoid resetting the processor.