With this 500 W cheap inverter inverter 12 V/220 VAC scheme, a constant voltage of 12 V can be converted to AC 220 V. 4047 chip produces a square wave generator of 50 Hz. square wave pulse will be amplified and then fed to the step-up transformer.
Inverter, is an electronic device or circuitry that changes direct current (DC) to alternating current (AC). The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source.
Calculate the parameters of the transformer
The base ratio for the transformer Pin = Pout, where
Pin = Vin × Iin – power of the primary winding,
Pout = Iout × VOUT – power of the secondary winding.
For example, if we want to connect to the inverter load 220 W at a voltage of 220 V, secondary current must be 220/220 = 1 A. In this case, the primary winding must be designed, at least at current 3.18 A, as 12 × 18.3 = 220 Tues
Thus, you need to winding the transformer, increasing 12 to 220, with the primary winding must be rated for currents up to 20A
Attention: This 500 W cheap inverter inverter 12 V/220 VAC Circuit is using high voltage that is lethal. Please take appropriate precautions