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Explained

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

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

boost

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

Explained: Snubber Circuit for MOSFET H-Bridge

Last Updated on June 8, 2025 by Swagatam 34 Comments

Here we are going to talk deeply about snubber circuits and why we must use them with MOSFET H-bridge circuits. Because if we do not put snubber in H-bridge then that MOSFETs might blow off during switching. Specially when we drive inductive loads like transformer, motor, relay, solenoid, etc. then this thing becomes very serious. […]

Filed Under: Voltage Control and Protection Tagged With: Bridge, Explained, MOSFET, Snubber

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