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9 Simple Solar Battery Charger Circuits

Last Updated on March 31, 2026 by Swagatam 542 Comments

garden2Blight

Simple solar charger circuits are small devices which allow you to charge a battery quickly and cheaply, through solar panels. A simple solar charger circuit must have 3 basic features built-in: In this post I will comprehensively explain nine best yet simple solar battery charger circuits using the IC LM338, transistors, MOSFET, buck converter, etc […]

Filed Under: Solar Controller Circuits Tagged With: Battery, Charger, Circuits, Simple, Solar

Simple Car Shock Alarm Circuit

Last Updated on May 16, 2026 by Swagatam 6 Comments

CARSHOCKALARMCIRCUIT

A simple car shock alarm circuit I have I have explained in this article can eb effectively used to alarm the owner each time the car comes across some kind of vibrational intrusion ether from a potential theft of simply a damaging hit from  an external source. Introduction Today most of the cars are equipped […]

Filed Under: Automobile Electronics, Security and Alarm Tagged With: Alarm, Shock, Simple

Designing Simple Power Supply Circuits

Last Updated on January 2, 2024 by Swagatam 166 Comments

power2Bsupply2Bcircuit2Busing2Bsingle2Bdiode

In this post I have explained how to design and build a simple power supply circuit right from the basic design to the reasonably sophisticated power supply having extended features. Power Supply is Indispensable Whether it’s an electronic noob or an expert engineer, all require this indispensable piece of equipment called the power supply unit. This is because no electronics […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Designing, Power, Simple, Supply

4 Simple VU Meter Circuits Explained

Last Updated on June 8, 2026 by Swagatam 50 Comments

music light

In this post I have explained how to build 4 interesting VU meter circuits, using LEDs and using a moving coil meter. What is a VU Meter VU meter or a volume unit meter circuit is a device used for indicating the music volume output from an amplifier or a loudspeaker system. It may be […]

Filed Under: Meters and Testers Tagged With: Circuits, Explained, Meter, Simple, VU

Simple 12V, 1A SMPS Circuit

Last Updated on September 22, 2023 by Swagatam 227 Comments

12v 1 amp smps circuit

In the following content I have explained two simple 12V, 1 Amp switch mode power supply (SMPS) circuit using the very reliable VIPerXX IC from ST microelectronics. With the advent of modern ICs and circuits, the age old iron transformer type of power supply are surely becoming obsolete. Today power supplies are much compact, smaller […]

Filed Under: Power Supply Circuits Tagged With: 12V, Simple, SMPS

How to Make a Simple Solar Inverter Circuit

Last Updated on January 2, 2024 by Swagatam 166 Comments

100ampsolarchargerinvertercircuit

In this article I will try to explain the basic concept of a solar inverter and also how to make a simple yet powerful solar inverter circuit. Solar power is abundantly available to us and is free to use, moreover it’s an unlimited, unending natural source of energy, easily accessible to all of us. What’s […]

Filed Under: Inverter Circuits, Solar Controller Circuits Tagged With: Inverter, Simple, Solar

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