Circuit diagram of 12V to 220V inverter based on CD4047

Industrial Router Crystal 3.2*2.5mm 3225 26M (26.000MHZ) 12PF 10PPM 20PPM 30PPM

RF cable can be customized for other specifications

Photocoupler

Using this inverter circuit, 12V DC can be converted to 220V, 500W AC. In this circuit CD4047 is used to generate a 50Hz square wave and amplified current, and then drive the transformer output AC voltage through power triode amplification.

12V to 220V inverter circuit diagram

How to calculate the rated value of the transformer: The basic formula is: power P = voltage V × current I
For example, if we want to output a 220V voltage of 220W, then we need 1A of output current. Then at the input, a voltage of 12V requires at least 18.3A because: 12V * 18.3A ≈ 220W. Transformer efficiency losses are not considered here.