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Newly Updated Circuit Projects:

Using an NTC Thermistor as a Surge Suppressor

Last Updated on January 2, 2024 by Swagatam 166 Comments

ntc 2

A Negative Temperature Coefficient (NTC) thermistor is a device which is able to suppress switch ON current surge due to its initial higher resistance at room temperature. However, as the NTC suppresses the initial surge current, it warms up causing its resistance to drop to nominal levels and this in turns allows the current to […]

Filed Under: Voltage Control and Protection Tagged With: NTC, Suppressor, Surge, Thermistor

Laser Beam Light Activated Remote Control Circuit

Last Updated on January 8, 2024 by Swagatam 27 Comments

laserbeamremotecontrolcircuit

The following post illustrates a simple light toggled/operated remote control circuit, which can be activated by an ordinary flashlight or more effectively through  a laser beam unit (key chain type). The circuit idea may be understood with the below mentioned points: How the Circuit Functions Transistor T3 along with the associated parts and the LDR […]

Filed Under: Remote Control Circuits Tagged With: Activated, Beam, Control, Laser, Light, Remote

Converting a Dead CFL into an LED Tubelight

Last Updated on June 1, 2026 by Swagatam 31 Comments

cfloutputpins

You might have already read about this interesting idea in many different sites. It’s about converting a dead CFL into a sleek LED tube light circuit. In this post I have explained the procedures with more details. How many times did you throw away a dead or over used faulty CFL unit into the dust bin? Well, we do […]

Filed Under: Lamps and Lights Tagged With: CFL, Converting, Dead, LED, Tubelight

Make this 1000 watt LED Flood Light Circuit

Last Updated on June 1, 2026 by Swagatam 12 Comments

1000 watt led flood light circuit 1

In this article I have explained a simple 1000 watt LED flood light circuit which can be very easily made by even a layman. The circuit was requested by Mr.Mike, let’s know more about the request and the circuit details: Technical Specifications: Hi from Canada !! My name is Mike . thank you for your […]

Filed Under: Lamps and Lights Tagged With: 1000, Flood, LED, Light, Watt

Operating a DC Motor Clockwise/Anticlockwise with a Single Switch

Last Updated on June 30, 2026 by Swagatam 24 Comments

motorclockwiseanticlockwisecircuitwithoneswitch

The following post discusses the wiring connections for driving a DC motor in clockwise and anticlockwise directions with the help of a single toggle switch and a relay circuit. The idea was requested by one the interested followers of this blog. I have explained more: Technical Specifications We have our project in school. Our professor […]

Filed Under: Motor Controller Tagged With: Anticlockwise, Clockwise, DC, Motor, Operating, Single

Generate Electricity from your Gym Workout: Circuit Diagram Explained

Last Updated on September 18, 2026 by Swagatam 17 Comments

generateelectricityfromgymworkouts

In this article I have explained the circuit implementation of an interesting concept of converting physical energy into electricity. Here I have explained a simple method of converting or channelizing the wasted gym workout energy into useful electrical energy. The idea was requested by one of the keen members of this blog, let’s know more: […]

Filed Under: Solar Controller Circuits Tagged With: Electricity, Generate, Workout

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