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MPPT

Smart Buck-Boost MPPT Solar Charger Circuit for 12V 24V Battery

Last Updated on May 17, 2026 by Swagatam 2 Comments

In this post we are going to learn how we can make one real working smart solar battery charger circuit which can do MPPT charging. We are using Arduino Nano as the brain for controlling everything. We will also use INA219 sensor module so that we can read the solar voltage and current properly. And […]

Filed Under: Battery Charger Circuits, Solar Controller Circuits Tagged With: Boost, Buck, Charger, MPPT, Smart, Solar

True MPPT Solar Controller Circuit using IC 555

Last Updated on September 12, 2025 by Swagatam 26 Comments

Are you wondering if it was possible to build a very simple MPPT circuit using ordinary parts like IC 555 and IC 741, which would work most efficiently imitating a true MPPT? The answer is yes, it is possible, and we will learn about it details, in the following article. In this design I used […]

Filed Under: Solar Controller Circuits Tagged With: 555, Controller, MPPT, Solar, True

Real MPPT Solar Charger Circuit Using Arduino, LCD, and Manual/Auto Switch

Last Updated on May 14, 2026 by Swagatam 19 Comments

So in this article we are trying to make a true MPPT solar charger project using Arduino which will charge a 12V battery from a solar panel and will use MPPT logic to always extract maximum power from the solar panel. That means that even when sunlight changes, we try to adjust PWM duty cycle […]

Filed Under: Arduino Projects, Solar Controller Circuits Tagged With: Arduino, Charger, LCD, MPPT, Real, Solar

Single LM317 based MPPT Simulator Circuit

Last Updated on July 5, 2025 by Swagatam 121 Comments

mppt 2

To make this simple MPPT circuit we first modify a standard LM317 power supply circuit into a buck converter then configure it with a solar panel for implementing an MPPT function. Modifying a LM317 Power Supply into an MPPT Solar Optimizer In our previous article I have explained how a standard LM317 power supply could […]

Filed Under: SMPS and Converters, Solar Controller Circuits Tagged With: Based, LM317, MPPT, Simulator, Single

Connecting MPPT with Solar Inverter

Last Updated on August 3, 2020 by Swagatam 12 Comments

MPpT

The small discussion I have I have explained in this article explains whether or not it is advisable to Connect parallel MPPTs with Solar inverters for increasing the net current value of the MPPTs. The question was raised by Mr. Ahmed Qaid Want to Convert Home Inverter to Solar hello sir, I have many questions […]

Filed Under: Solar Controller Circuits Tagged With: Connecting, Inverter, MPPT, Solar

Best 3 MPPT Solar Charge Controller Circuits for Efficient Battery Charging

Last Updated on April 29, 2020 by Swagatam 211 Comments

solar2Bmppt

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. In this post I have explained the 3 best  MPPT controller circuits for efficiently harnessing solar power and charging a battery in the most efficient manner. Where an MPPT […]

Filed Under: Solar Controller Circuits Tagged With: Best, Charge, Circuits, Controller, MPPT, Solar

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