Here is a simple circuit called mosquito repeller in the series of easy electronic project. The circuit of mosquito repeller uses few passive components.
Circuit Description and Working Principle of Mosquito Repeller:
The circuit of mosquito repeller is so simple that any-one can understand. The input of 220 volt AC from mains is directly given to the circuit; two resistors are connected in parallel as current divider circuit. Neon lamp is used as indicator to check whether the circuit works properly or not. An aluminum plate is connected to the resistor R1 which is heated as resistor heats up. A mosquito repeller mat is kept on aluminum plate.
PARTS LIST OF MOSQUITO REPELLER CIRCUIT
R1 = 100KΩ
R2 = 8.2 KΩ/7W