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What is Mains Failure Alarm and Fuse Detector about?

This document describes the design of an automatic mains failure alarm and fuse detector circuit. It contains an introduction, design principle, circuit description, and conclusion. The circuit uses an optocoupler to detect the presence or absence of mains power. When power is lost, a monostable multivibrator triggers an alarm and lights an indicator LED. The circuit can distinguish between a mains failure and a blown fuse using separate detection circuits. It is designed to operate from a backup power supp

Author

AJAY VISHNU M S

Language

EN