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Explained

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

DPDT Relay Working, Pinouts, Testing Explained

Last Updated on October 18, 2025 by Swagatam 2 Comments

In this post we are going to understand about how this DPDT relay actually works, how we identify its pinouts, and how we can use it in our projects. We shall go step by step so that you can feel confident with every small thing about it. Introduction We know that a DPDT relay means […]

Filed Under: Electronics Theory Tagged With: DPDT, Explained, Pinouts, Relay, Testing, Working

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

3 Sound Activated Switch Circuits Explained

Last Updated on July 10, 2025 by Swagatam 129 Comments

In this post I have explained 3 simple sound activated relay switch circuits which can used as a module for any system that might be assigned to trigger by detecting some kind of sound pressure level. Or simply applications  such as a  voice activated alarm security circuit. 1) Circuit Objective Utilizing this basic sound activated […]

Filed Under: Sensors and Detectors Tagged With: Activated, Circuits, Explained, Sound, Switch

How to Build a Boost Converter Circuit: Explained with Calculations

Last Updated on July 5, 2025 by Swagatam 186 Comments

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I have explained comprehensively how to build a boost converter circuit for converting a low level DC voltage inputs to a higher level DC voltage outputs. I have furnished all the required calculations s that you can design a customized boost converter circuit. A Practical Boost Converter Circuit Design using IC 555 This simple circuit […]

Filed Under: SMPS and Converters Tagged With: Boost, Build, Calculations, Converter, Explained

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