Mobile Detector

Working Principle

In this circuit main components are IC LM386 and Diodes. we have used two diodes of IN34 series, these two diodes are connected alternate to each other so that they act as a schottky diode. When the frequencies between kilo Hz or Mega Hz comes in range of these didoes the LED will glow. The main function of diodes is to convert frequencies into voltage form so that LED will glow. In short here Diodes acts as a Transducer.

To simulate the circuit and to get output i used function generator and connect across diodes which produces frequencies and diodes detect these frequencies and LED will glow.

For simulation watch video given below so your concept will clear.