power supply

Power Bank Mobile Phone Charger Circuit on PCB Power Bank Circuit on PCB

The features of the digital products are growing enormously which triggers the frequent usage of smart phones in several…

How to Make a Mini Tesla Coil 9v How to Make a Mini Tesla Coil with 9v Battery

Be it an ordinary high school project or a mind-blowing arcing project, a Tesla Coil is always fun to build and will definitely…

555 Timer PWM Generator Circuit Generate Pulse Width Modulation (PWM) Signal using 555 Timer IC

Pulse Width Modulation using 555 timer is an important feature of today’s microcontroller due to its requirement for…

Simple Smoke Detector Alarm Circuit Simple Smoke Detector Alarm Circuit

Smoke Detectors are very useful in detecting smoke or fire in buildings, and so are important safety parameters. In…

Transformerless Power Supply Transformerless Power Supply

Generating low-voltage DC from the 220V or 110V AC mains is very useful and necessary in the field of electronics. Low voltage…

PIR Sensor based Automatic Door Opener Project using PIR Sensor Automatic Door Opener using Arduino

You must have seen automatic door openers in shopping malls and other commercial buildings. They open the door when someone…