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LM339

How to Make IC LM339 Circuits

Last Updated on June 23, 2026 by Swagatam 15 Comments

LM339 square wave oscillator compressed

The IC LM 339 is primarily created to compare two input voltages and generate a corresponding output. Having said that, before we try to learn regarding the various LM339 based circuits, it would be important to go through the standard features of the LM339. It is basically a quad comparator IC, meaning we can find […]

Filed Under: Mini Projects Tagged With: Circuits, LM339

Solar Battery Charger using LM339 Comparator

Last Updated on December 4, 2023 by Swagatam 13 Comments

LM339 solar battery charger circuit

This small LM339 based solar battery charger setup is designed to optimize the charging of your battery using any solar panel while protecting it from accidental overloads. Considering the extended battery life it allows you to achieve, it is an investment that quickly pays for itself. Circuit Description Our setup is nothing more than a […]

Filed Under: Solar Controller Circuits Tagged With: Battery, Charger, Comparator, LM339, Solar

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