500W Inverter 12V DC to 220V AC

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This is inexpensive inverter circuit which able to convert 12V DC become 220V AC. IC CD4047 is use to generate the square wave of 50hz and amplify the current and then amplify the voltage by using the step transformer.

500W Inverter 12V to 220V circuit diagram

How to calculate transformer rating

The basic formula is P=VI and between input output of the transformer we have Power input = Power output

For example if we want a 220W output at 220V then we need 1A at the output. Then at the input we must have at least 18.3V at 12V because: 12V*18.3 = 220v*1

So you have to wind the step up transformer 12v to 220v but input winding must be capable to bear 20A.


4 comments

hi.. i just want to simulate ur circuit but i have some problem on the IC4047. which part in Pspice that i can found the IC that can be used for the simulation? thanks.

hi.. i just want to simulate ur circuit but i have some problem on the IC4047. which part in Pspice that i can found the IC that can be used for the simulation? thanks.

Hi, i just want to simulate ur circuit but i have some problem on the IC CD4047. which part in Pspice that i can found the IC that can be used for the simulation? thanks.