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Explained

2 Best Current Limiter Circuits Explained

Last Updated on June 1, 2026 by Swagatam 336 Comments

precisioncurrentlimiter

In this post I have explained 2 simple universal current controller circuits which can be used for safely operating any desired high watt LED. The universal high watt LED current limiter circuit explained here can be integrated with any crude DC supply source for getting an outstanding over current protection for the connected high watt […]

Filed Under: Lamps and Lights Tagged With: Best, Circuits, Current, Explained, Limiter

IRF540N MOSFET Pinout, Datasheet, Application Explained

Last Updated on June 30, 2026 by Swagatam 30 Comments

irf540ndatasheet252Cpinouts

The IRF540N is an advanced HEXFET N-channel power mosfet, from International Rectifier. The device is extremely versatile with its current, voltage switching capabilities, and thus becomes ideal for numerous electronic applications. The datasheet and pinout details of the device has been explained in the following article. Main Features: Sophisticated, cutting-edge processing technology used. Extremely low […]

Filed Under: Datasheets and Components Tagged With: Application, Datasheet, Explained, IRF540N, MOSFET, Pinout

7 Simple Continuity Tester Circuits Explained

Last Updated on June 8, 2026 by Swagatam 43 Comments

simplecontinuitytestercircuit

If you are looking for a simple circuit to test continuity of wires and long conductors, the explained 7 easy to build continuity circuits are the ones which you can try and might fulfill your requirement. What is a Continuity Tester A continuity tester is a device which is used for identifying the correct continuity […]

Filed Under: Meters and Testers Tagged With: Circuits, Continuity, Explained, Simple, Tester

Simple Delay Timer Circuits Explained

Last Updated on January 2, 2024 by Swagatam 712 Comments

In this post I have explained the making of simple delay timers using very ordinary components like transistors, capacitors and diodes. All these circuits will produce delay ON or delay OFF time intervals at the output for a predetermined period, from a few seconds to many minutes. All the designs are fully adjustable. Importance of […]

Filed Under: Timer and Delay Relay Tagged With: Circuits, Delay, Explained, Simple, Timer

Simplest Piezo Driver Circuit Explained

Last Updated on May 15, 2026 by Swagatam 47 Comments

piezodrivercircuit1

In the previous post I explained a piezo transducer element and learned how to use it with electronic circuits. In this article we will see how a piezo tranducer can be driven or operated using a simple circuit. As discussed earlier a piezo transducer basically requires a frequency to vibrate and reproduce the required sound. […]

Filed Under: Audio and Amplifier Projects Tagged With: Driver, Explained, Piezo, Simplest

2 Best Long Duration Timer Circuits Explained

Last Updated on January 19, 2025 by Swagatam 191 Comments

long duration timer circuit

In this post I have explained how to make 2 accurate long duration timer circuits ranging from 4 hours to 40 hours, which can be upgraded further for getting even longer delays. The concepts are fully adjustable. A timer in electronics is essentially a device which is used for producing time delay intervals for switching […]

Filed Under: Timer and Delay Relay Tagged With: Best, Circuits, Duration, Explained, Long, Timer

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