Arduino PWM Solar Charge Controller #1 - MOSFET Configurations

Thoughts about MOSFET configurations for my new Arduino PWM Solar Charge Controller project. I've settled on an N-channel, high-side MOSFET configuration which is the same as the Arduino MPPT controller configuration - some nice synergy there!

This MOSFET configuration requires a high-side switch and a charge pump which will be identical to the circuitry I used in my PWM5 controller (so I know it works).

The Arduino PWM controller and the Arduino MPPT controller will always remain two separate open-source projects, but the PWM project will be used to develop firmware to port over to the MPPT design. ... https://www.youtube.com/watch?v=qY-6GK873ts