100w inverter using scooter battery

100w inverter using scooter battery

Introduction

Inverter is a small circuit which will convert the direct current (DC) to alternating current (AC). The power of a battery is converted in to’ main voltages’ or AC power. This power can be used for electronic appliances like television, mobile phones, computer etc. the main function of the inverter is to convert DC to AC and step-up transformer is used to create main voltages from resulting AC. In this project we can use scooter battery to build this inverter. This inverter works in small scale application and it can light up 10w LED bulb for 10hrs

Circuit diagram(100w Inverter Using Scooter Battery)

100w inverter using scooter battery

Components required
• Battery – 12V, 7Ah
• IC – CD4047 – 1 nos
• MOSFET – IRF540 – 2 nos
• Resistor – 330 ohm – 1nos
• Resistor – 1k ohm – 2 nos
• Resistor – 220 ohm – 2 nos
• Resistor – 390k ohm – 1 nos
• Diode – 1N4007 – 1 nos
• Switch – 1 nos
• Capacitor – 2200uF/25V – 1 nos
• Capacitor – 0.01uF – 1nos
• Capacitor – 0.1uF – 1 nos
• Transformer – 12-0-12/230V,150VA – 1 nos

How the circuit works

CD 4047 is a low power CMOS astable/monostable multivibrator IC. Here it is wired as an astable multivibrator producing two pulse trains of 0.01s which are 180 degrees out of phase at the pins 10 and 11 of the IC. Pin 10 is connected to the gate of Q1 and pin 11 is connected to the gate of Q2. Resistors R3 and R4 prevents the loading of the IC by the respective MOSFETs. When pin 10 is high Q1 conducts and current flows through the upper half of the transformer primary which accounts for the positive half of the output AC voltage. When pin 11 is high Q2 conducts and current flows through the lower half of the transformer primary in opposite direction and it accounts for the negative half of the output AC voltage