Mini Inverter

Abstract

This project is developed for the users to construct a mini inverter which can be useful in the time of power failures. It consists of three modules. They are Battery, inverting section, Driver section and Step up section. The battery is a source of 12V DC. The inverting section consists of two ICs CD4047 and ULN2003. IC CD 4047 produces oscillated voltage. The frequency of oscillation is adjusted by a preset. IC ULN2003 is a negative driver IC. The output of the oscillator IC is given to the driver IC. It drives analogue negative voltage corresponding to the signal from the oscillator IC. This pulsated DC is given to the step up transformer. The step up transformer steps up 12 V pulsated DC to desired 230 V AC. This project is cost effective and portable. The user can take this even while traveling.

Existing System

Proposed System

Architecture

BLOCK DIAGRAM