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How to Protect Loudspeakers from Over Current Surge

Last Updated on October 4, 2021 by Admin Leave a Comment

loudspeaker protection

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 […]

Filed Under: Protection Circuits

Simple Burglar Deterrent Circuit

Last Updated on November 17, 2024 by Admin Leave a Comment

burglar deterrent

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 […]

Filed Under: Protection Circuits, Security and Alarm Circuit

How to Protect Homes from Burglars during Vacations

Last Updated on March 30, 2020 by Admin Leave a Comment

burglar alarm

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 […]

Filed Under: Protection Circuits

Simple 220V Over and Under Voltage Protection Circuit

Last Updated on November 25, 2018 by Admin 8 Comments

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 […]

Filed Under: Protection Circuits

Types of Biometric Sensors and Its Working

Last Updated on November 2, 2018 by Admin Leave a Comment

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 […]

Filed Under: Protection Circuits, Sensors and Detectors

Darkness Safety Light Circuit for Bikers and Pedestrians

Last Updated on January 10, 2018 by Admin Leave a Comment

blinking

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 […]

Filed Under: Indicators, Protection Circuits

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