Mosquito Swatter or Mosquito Racket
Table of Contents:
It is an electronic device that produces high voltage around 300-400 volts in the nets. When the mosquito passes through the outer and inner nets of the swatter, its wings short out and sparks which will destroy it. The mosquito swatter circuit consists of three sections.
1. AC to DC converter
AC is directly step-down using the AC capacitor and rectified through full wave Diode Bridge. A low value smoothing capacitor is also present. This DC is used for charging the battery in rechargeable types. But in non rechargeable types, AC-DC conversion is not present.
A transistor based oscillator is present to generate pulses. The transistor switches on and off rapidly to create a rising and falling voltage for the transformer to step up.
3. A step-up transformer to generate high voltage AC by inverting the DC to AC.
4. Net or Grid – The high voltage low current pulses passes into the net. The grid set up has three nets. Two outer nets are negative and the middle one is positive.
Mosquito Swatter Structure
Inside the Mosquito Swatter
Mosquito Swatter Circuit
When the mosquito swatter is switched on, and gently swings, the electric field from the net attracts the mosquitoes and they try to move though the net which gives a fatal shock.