Clap Operated Fan Speed Control

Posted on October 11, 2016October 14, 2019 by SUMIT BHUT

This Project of control fans is used to control not only switching properties but also control speed of fan. The main advantage of Clap Operated Fan Speed Control is, it can control up to ten-step speeds of fan. Sound-operated trigger pulse : The MIC is used to change voice signal into its corresponding electrical signal….. Clock pulse Read more about Clap Operated Fan Speed Control[…]

Mains Supply Failure Backup Light

Posted on September 21, 2016October 14, 2019 by SUMIT BHUT

Mains Supply Failure Backup Light In the event of a sudden blackout at night, this circuit switches on automatically to provide sufficient light for around 30 seconds (extendible), which is enough to switch on an emergency lamp or light up candle. The circuit is simple, low-cost and maintenance-free as it uses no battery, bulky transformer Read more about Mains Supply Failure Backup Light[…]