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Explained

4 Simple Transformerless Power Supply Circuits Explained

Last Updated on December 24, 2025 by Swagatam 438 Comments

In this post I have explained 4 easy to build, compact simple transformerless power supply circuits. All the circuits presented here are built using capacitive reactance theory for stepping down the input AC mains voltage. All the designs presented here work independently without any transformer, or no transformer. The Transformerless Power Supply Concept As the […]

Filed Under: Power Supply Circuits Tagged With: Circuits, Explained, Power, Simple, Supply, Transformerless

5 Simple Electronic Dice Circuits Explained [Digital Dice]

Last Updated on December 16, 2025 by Swagatam 12 Comments

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We all know what a dice is and how manually a dice is shuffled and thrown to get a random number. In older times when we did not have computer games or mobile games, we used to play with various indoor games that required tossing a cubical thing called dice having 1 to 6 dots […]

Filed Under: Games and Sports Projects Tagged With: Circuits, Dice, Digital, Electronic, Explained, Simple

How to Sense Current Using Op-Amp: Low Side and High Side Circuits Explained

Last Updated on November 18, 2025 by Swagatam 6 Comments

In this post we are going to learn one very interesting and also very much useful topic that is how we can measure the current which is going through any load by just using some normal resistors and one op amp circuit. We know already that current is one very important thing in every electrical […]

Filed Under: Sensors and Detectors Tagged With: Circuits, Current, Explained, High, Sense, Side

L298N DC Motor Driver Module Explained

Last Updated on November 7, 2025 by Swagatam 9 Comments

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In this post I have explained about L298N dual H-bridge DC motor driver module which can be used to drive brushed DC motors and stepper motors with microcontrollers and ICs. Overview Modular circuit boards are best time savior for electronics designers which also reduce the prototyping errors. This is mostly preferred by programmers who write […]

Filed Under: Arduino Projects, Motor Controller Tagged With: DC, Driver, Explained, L298N, Module, Motor

FET Current Source: Explained with Formulas

Last Updated on September 26, 2025 by Swagatam Leave a Comment

An FET Current Source is one special type of active circuit that is using a Field Effect Transistor for giving a steady and constant current into a circuit. We are doing this because sometimes we want that current should not change, it should remain fixed and stable. Why We Need Constant Current Now you may […]

Filed Under: Electronics Theory Tagged With: Current, Explained, FET, Formulas, Source

Servo Motor Working Explained

Last Updated on September 8, 2025 by Swagatam Leave a Comment

We know that servo motors already exist for very long time and we also see that many people use them in many applications. These motors look small but they give big power and also they save lot of energy. So now many people who like electronic things and who want to understand more about such […]

Filed Under: Motor Controller Tagged With: Explained, Motor, Servo, Working

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