Wireless AC Power Detector

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Wireless AC Power Detector

We all know that electric shock can cause serious injury or even death. In order to avoid injury, prior to starting work on an electrical box such as an AC mains switch-board or a power supply, for example, you must first verify there is no AC voltage.

Problem is that how you can be sure that there’s no voltage remaining?

Here is a solution that helps you test cable without requiring any physical touch with cable . This circuit is called Wireless AC Power Detector . This circuit detects AC signal frequencies and gives a beep indication if AC signals are flowing through cable.

How this circuit works ?

We all know that according to law of electromagnetic theory, A magnetic field is produced around a current carrying conductor and if current through the conductor is alternating current (AC), the magnetic field produced varies periodically. A Wireless AC Power Detector detects the changing magnetic field around AC energized objects. 


Parts Required :

IC Decade counter 4017 x 1

16 Pin IC Base x 1

BC 547 Transistor x 1

1K Resistor x 1

470E Resistor x 1

Red LED x 1

Buzzer x 1

Multi Purpose PCB x 1

Battery Cap X 1


Block diagram


Circuit Diagram:


Working :


Project snapshot :


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