Electronic Projects and Circuit Ideas for School and Colleges

Best Variable Power Supply and Battery Charger

Jul 6, 2021Sartaj Singh Virdi2 CommentsElectronic Projects for Kids

I have come across various inquires where my beautiful facebook visitors are asking me for a powerful variable power supply / battery charger circuit for professional use. So here is a powerful yet very reliable circuit that can charge your Power Banks, Motorcycle batteries, Car batteries, Mobile batteries, General purpose batteries; and, it can also

SIMPLE SOFT LATCH SWITCH CIRCUITS

Jan 31, 2021Sartaj Singh Virdi1 CommentElectronic Projects for Kids

On the specific demands by some of my Facebook page visitors, I have redone this simple Latch Switch Circuit that can ‘hold’ the circuit in either ON or OFF state until any external signal is applied to it. The signal is supplied using ‘Push to On’ Buttons. The concept of a Latch Circuit is that

SENSITIVE CLAP SWITCH USING 741 and CD4017

Jan 22, 2021Sartaj Singh Virdi12 CommentsElectronic Projects for Kids

Just clap and it will turn on or off the desired load. The USP of this circuit is that it is very sensitive. This circuit is very old, but I tried, built and repackaged it as a school project for one of my friend. He is happy with the results. Circuit Description Here is a

TRANSISTOR TESTER AND DIODE TESTER USING IC 555

Dec 18, 2020Sartaj Singh VirdiElectronic Projects for Kids

An ideal school project for small workbench as a School Project. WHAT IS THIS PROJECT It is one of the most commonly used circuits available online. It works immaculately. The circuit is very common; however, I needed this little project on my work bench to immediately test Diodes and Transistors. Testing a transistor using a

Replace TRIMPOT With Regular Potentiometer on Buck Converter

Dec 11, 2020Sartaj Singh Virdi12 CommentsElectronic Projects for Kids

USING REGULAR POTENTIOMETERS ON A BUCK CONVERTER (This little electronic school project is based on a request from one of my page visitor from Tunisia.) As we all know, most of the buck converters available come with high precision trimpots to change the output voltage or the current. These trimpots cannot be simply replaced with

Wireless Music Transmission using Laser LED

Dec 8, 2020Sartaj Singh VirdiElectronic Projects for Kids

In this small and easy project we will transmit music wirelessly using LASER LED. Ever transmitted audio using Li-Fi (Light Fidelity)? Nope. Let’s do it. To transmit music / audio wirelessly we need a transmitter (which is a LASER LED), and a receiver which is a 4V SOLAR Panel (commonly available). Between the transmitter and

Tesla Reborn: Wireless Power Transmission (School Project)

Nov 30, 2020Sartaj Singh Virdi1 CommentElectronic Projects for Kids

A Simple Physics Project for my friend’s brother in an Engineering College The concept of transferring electricity from one coil to another is not a new concept. It was demonstrated practically by Nikola Tesla in the early 1890. Nikola Tesla introduced electrodynamics induction or resonant inductive coupling by lighting up three light bulbs from the

POLLUTION BUSTER: AIR IONIZER (School Project)

Nov 23, 2020Sartaj Singh Virdi5 CommentsElectronic Projects for Kids

Ever wondered why the atmosphere at a hill station feels far fresh than any of our modern cities. The answer to this simple question is equally simple; the air at a hill station is free from pollutants and harmful chemicals like smoke and gases. POLLUTION BUSTER is a MUST HAVE gadget for every home in

Simple Dancing Lights (Flexible ASTABLE MULTIVIBRATOR)

Nov 10, 2020Sartaj Singh VirdiElectronic Projects for Kids

This is a ‘Simple Dancing Lights’ circuit that glows two pair of three LEDs each in an oscillatory mode. The oscillation rate of the circuit can be controlled in various ways. The circuit has 2 potentiometers and two pair of four capacitors that can set the oscillatory frequency – thus slowing down or fastening the

Small Electronic Project for Kids – Magic Of MOSFET (MOM)

Nov 2, 2020Sartaj Singh Virdi6 CommentsElectronic Projects for Kids

Here is the smallest circuit that is both interesting and very responsive. It is a very reliable Metal–Oxide–Semiconductor Field-Effect Transistor (MOSFET) based Touch Sensitive Switch. In this circuit (named as Magic of MOSFET – MOM) I have made a Simple Touch Sensitive Switch using single 2N7000 MOSFET to switch ON and OFF a 3V (white)