555 timer IC

A Simple DC-DC Boost Converter using 555 Timer IC

In this project we build a boost converter circuit using a 555 timer IC. Boost converter is a non-isolated type of switch mode...

A Simple 555 Timer based Buck Regulator for LED Dimmers and DC Motor Speed Control

In this article, we will make a buck converter using 555 timer IC and a IRFZ44N N channel MOSFET and use it as LED dimmer...

Building a Wailing Siren Circuit using a 555 Timer IC

If you are an electronics hobbyist then you must have heard about the 555 timer IC and its 3 popular circuits viz. astable...

Build a 555 Timer IC based Simple Push-on Push-off Circuit

If you are a hobbyist or have keen interest in electronics circuits, you must be familiar with 555 timer IC and its three...

Automatic Light Fence Circuit with Alarm

Light fence circuit is used to detect the presence of any human or object in a particular area. The detecting range of Light...

Capacitor ESR Meter using Oscilloscope

Capacitors seem all fine till you get to the point where a power supply fails or refuses to perform optimally. And if the...

8051 Microcontroller based Frequency Counter

Frequency is defined as number of cycles per second. It can also be defined as reciprocal of total time ‘T’.  In this project...

Thyristor Switching using Snubber Circuit

Snubbers are the energy absorbing circuits used to smooth the voltage spikes caused due to the circuit’s inductance. Sometimes...

Frequency Divider Circuit using 555 Timer and CD4017

Frequency Dividers are the circuits which divide the input frequency by n (any integer number), means if we provide some signal...

Magnetic Door Alarm Circuit using Hall Sensor

Door alarm is a very common and useful device for security purpose. They are used to detect whether the Door is open or closed...