Solar Panel Mppt Circuit Design

Homemade solar mppt circuit poor man s maximum power point tracker last updated on february 24 2020 by swagatam 129 comments mppt stands for maximum power point tracker which is an electronic system designed for optimizing the varying power output from a solar panel module such that the connected battery exploits the maximum available.

Solar panel mppt circuit design.

This compact reference design targets small and medium power solar charger solutions and is capable of operating with 15 to 60 v solar panel modules 12 or 24 v batteries and providing upwards of 20 a output current. The solar charge controller also has board level protection features that protect the board from battery short circuits battery open and battery panel reverse connections. The maximum power point tracker mppt circuit is based around a synchronous buck converter circuit it steps the higher solar panel voltage down to the charging voltage of the battery. An mppt as we all know refers to maximum power point tracking which is typically associated with solar panels for optimizing their outputs with maximum efficiency.

This design is a 20a maximum power point tracking mppt solar charge controller created for solar panel inputs corresponding to 12v and 24v panels. The design is targeted for small and medium power solar charger solutions and is capable of operating with 12v 24v panels and 12v 24v batteries up to 20a output current. In this post we learn the 3 best mppt controller circuits for efficiently harnessing solar power and charging a battery in the most efficient manner.