Electronic Mosquito Repellent Circuit

Electronic Mosquito Repellent Circuit

Author Name : G. Shalini, R. Nisha, C. Anjalai

ABSTRACT Control of mosquitoes is something of utmost importance in the present day with rising number of mosquito borne illness. Products like mosquito repellant used to combat mosquitoes are required. This project proposal presents the design and testing of an electronic mosquito repellant. The project is aimed at developing a device that is capable of emitting ultrasonic energy is varied frequencies. These frequencies do affect the auditory senses of pests such as mosquitoes, rodents, avian and nocturnal insects by making them uncomfortable in their abode. However, these frequencies do not affect the hearing ability of humans. The mosquito repellant circuit generates an ultrasonic sound with a high output frequency that allows spreading mosquitoes within a wide radius. The circuit is quite simple and requires few external components. The oscillation frequency is given by the value of the resistors and capacitor components. The actual oscillation frequency of this electronic mosquitoes repellent is above 20 KHz so what is needed is a good high frequency speaker, example being a piezo speaker. The electronic mosquito repellent circuit can be supplied from a 1.5VDC power supply.