Construction and Charactarization of a Designed 500 VA Transistor Controlled Inverter

Abstract

This work entails design and analysis of a 500VA transistor controlled inverter suitable for the Nigerian society Powered by a 12V DC battery, it is a supplementary means of generating AC in case of electric power failure to equipment. The 12V DC from battery source is fact into an astable multivibrator IC (4047) to change the DC source to AC of low voltage This is then passed to the transistor controlled drivers and switches, and finally stepped up a step-up transformer to 240V, 50Hz which is the standard line voltage and frequency in Nigeria . The 12V DC battery is an external power source, which is charged by a charging circuit incorporated into the design of the system unit. The overall system design is therefore a compact assembly that can take the place of electric generators currently in vogue in most households by providing an environmentally friendly back-up power to commensurate for frequent power outages Key words: Inverter transistor standard line voltage and frequency.