From now on, the solar energy is more and more popular in all over the world. our company also met a project related to solar system. And my responsibility was how did the solar panel generated the energy efficiently, I'm new in this area, So I searched on the internet and found some resource about MPPT(Maximum power point tracking). it's really sample and economical.
The principle is that controlling the PWM to manage output of solar panel. according to formular watts = current * voltage...

I'm a software engineer from china mainland. I used to developing relation of java, c++, mcu. I'm willing to share my experience here and make friends.