There are plenty of ways to protect loudspeakers against the switch-on ‘plop’. Many of such ways depends on a clamp circuit moving across the input of power amplifier, so that […]
Simple Burglar Deterrent Circuit
The basic principle applied to create burglar deterrent circuits the world over is to detect an unwarranted presence and ring an alarm or effect some kind of activity to alert […]
How to Protect Homes from Burglars during Vacations
In this post we discuss a circuit idea which will protect an empty house from potential burglars by switching the home lights ON OFF randomly, creating an effect that it […]
Simple 220V Over and Under Voltage Protection Circuit
This very simple two transistor circuit will ensure that your home electrical and appliances are never affected by abnormal voltage fluctuations. This circuit designed to cut off the 220V supply […]
Types of Biometric Sensors and Its Working
The phrase biometric comes from the Greek words bio and metric. Where bio signifies life and metric suggests measurement. Biometrics are accustomed to determine physical and mental qualities of a […]
Darkness Safety Light Circuit for Bikers and Pedestrians
In this article we study a neat little LED flasher circuit which could help the bikers and pedestrians, runners, to create a blinking safety light on their body outfit, such […]