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Newly Updated Circuit Projects:

Illuminating DRL and Turn Lights with Single Common Lamp

Last Updated on May 16, 2026 by Swagatam 54 Comments

drl2Bturn2Bwith2Bcommon2Bled

In this article I have explained a simple circuit for enabling the turn signal lamp of any car to carry out a two-way function of DRL lights as well as well the stipulated turn lights. The idea was requested by Mr. Artem. Technical Specifications Thank you for your fanaticism with electronics, this is really noticeable […]

Filed Under: Automobile Electronics Tagged With: Common, DRL, Illuminating, Lights, Single, Turn

Smart Emergency Lamp Circuit with Maximum Features

Last Updated on June 8, 2026 by Swagatam 122 Comments

smart E light

In this post I have explained about a simple yet sophisticated automatic emergency light circuit which can be considered “smart” due to the involved advanced features and an inexpensive design. The idea was requested by Mr. Lokesh. Technical Specifications Hi sir, I am so glad to see your interest towards electronic circuits. So eagerly waiting […]

Filed Under: Lamps and Lights Tagged With: Emergency, Features, Lamp, Maximum, Smart

3 Frequency to Voltage Converter Circuits Explained

Last Updated on June 8, 2026 by Swagatam 6 Comments

f2Bto2Bv

As the name suggests frequency to voltage converters are devices that convert a varying frequency input into a correspondingly varying output voltage levels. Here we study three easy yet advanced designs using IC 4151, IC VFC32 and IC LM2907. 1) Using IC 4151 This frequency voltage converter circuit using IC 4151 is characterized by its […]

Filed Under: Meters and Testers Tagged With: Circuits, Converter, Explained, Frequency, Voltage

2 Simple Voltage to Frequency Converter Circuits Explained

Last Updated on September 22, 2026 by Swagatam 7 Comments

C2

A voltage to frequency converter circuit converts a proportionately varying input voltage int a proportionately varying output frequency. The first design is using the IC VFC32 which is an advanced voltage to frequency converter device from BURR-BROWN specifically designed to produce an extremely proportional frequency response to the fed input voltage for a given voltage […]

Filed Under: Oscillator Circuits Tagged With: Circuits, Converter, Explained, Frequency, Simple, Voltage

How to Design a Buck Converter Circuit: Formulas and Calculations

Last Updated on May 20, 2026 by Swagatam 71 Comments

pwm2Bcheck

In this post I have explained the method of designing buck converter circuits by calculating all the required parameters, in order to ensure an optimal performance from these devices. We take the example of IC 555 buck converter typologies, and try to understand the optimizing techniques through equations and manual adjustments, for achieving the most […]

Filed Under: Electronics Theory Tagged With: Buck, Calculations, Converter, Design, Formulas

Make this Electric Scooter/Rickshaw Circuit

Last Updated on May 16, 2026 by Swagatam 47 Comments

electric2Bscooter

In this article I have explained a simple electric scooter circuit design which can be also modified to make an electric auto-rickshaw. The idea was requested by Mr. Steve. The Circuit  Request I was lucky enough to find your blog, really amazing stuff that you’ve managed to design. I’m looking for a DC to DC […]

Filed Under: Automobile Electronics Tagged With: Electric, Rickshaw, Scooter

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