Electronic mosquito repeller circuit diagram


Posted on Feb 5, 2014

The circuit is based on the theory that insects like mosquito can be repelled by using sound frequencies in the ultrasonic (above 20KHz) range. The circuit is nothing but a PLL IC CMOS 4047 wired as an oscillator working at 22KHz. A complementary symmetry amplifier consisting of four transistor is used to amplify the sound. The piezo buzzer converts


Electronic mosquito repeller circuit diagram
Click here to download the full size of the above Circuit.

the output of amplifier to ultrasonic sound that can be heard by the insects.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Variable power supply
    FM transmitter with two 2N3904
    Tremolo
    DC motor 12V speed controller circuit with explanation
    Inverter 12V DC to 240V DC circuit diagram
    12v automotive electrical voltage
    burglar alarm using ic timer 555556
    waterpump safety guard for fish
    6V6 6J5 Class A Vacuum Tube (Valve) Amplifier Circuit
    IR remote control computer interfacing



    Top