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New Circuit Projects

100 Watt LED Constant Current Driver Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 190 Comments

100wattleddrivercircuit

You might have probably come across these fantastic high power, high efficiency LED modules and wondered how do you make these? Here I have explained how to make a 100 watt LED flashlight out of it? Introduction The article revises the datasheet of this LED module and explains a simple driver circuit which can be […]

Filed Under: Lamps and Lights Tagged With: 100, Constant, Current, Driver, LED, Watt

Making a Pyrometer Circuit

Last Updated on November 8, 2023 by Swagatam 6 Comments

Pyro1 2

To make a furnace temperature meter, the sensing element is required to be particularly robust so that it is able to withstand the extreme high temperatures generally developed in furnaces and ovens. What is a Furnace The circuit of a pyrometer explained here is based on a thermocouple principle which can be used to read […]

Filed Under: Temperature Controllers Tagged With: Making, Pyrometer

RTD Temperature Meter Circuit

Last Updated on January 8, 2024 by Swagatam 2 Comments

rtd 2

In this post I have explained the making of an RTD temperature meter circuit, and also learn about different RTDs and their working principles through formulas. What’s an RTD A RTD or resistance temperature detector works by detecting the difference or an increase in the resistance of the sensor metal when it’s subjected to heat. […]

Filed Under: Meters and Testers Tagged With: Meter, RTD, Temperature

FM Wireless Microphone Circuit – Construction Details

Last Updated on November 8, 2023 by Swagatam 45 Comments

fm 2

A wireless microphone is a portable electronic microphone which allows the user to transmit its voice to an amplifier without any wire connection, hence the name wireless microphone. Making a wireless mic at home can be real fun, here I have explained one such simple project which can be used for recording and paying back […]

Filed Under: Transmitter Circuits Tagged With: Construction, Details, FM, Microphone, Wireless

How to Make a Bicycle Horn Circuit with Ringtone

Last Updated on November 8, 2023 by Swagatam 17 Comments

inductor

A bicycle horn is normally used in bicycles for generating an amplified alarm sound with a press of a button for alerting anybody getting on the path of the running bicycle. In this post I have explained the complete construction of an electronic bicycle horn circuit which will resemble a phone musical ringtone sound. Introduction […]

Filed Under: Automobile Electronics Tagged With: Bicycle, Horn, Ringtone

Sequential LED Array Light Circuit

Last Updated on November 8, 2023 by Swagatam 32 Comments

LEDbar

In this article I have explained how to make a sequential LED array light circuit with an sequentially illuminating LED forming a bar graph kind of LED formation. Introduction In this article I have explained a simple method of making an incremental LED light using the IC 4017, which is rather equipped with specifications not […]

Filed Under: Lamps and Lights Tagged With: Array, LED, Light, Sequential

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