230 Naar 12 Volt Transformator. Then use a transformer to step it. Web reylax slim led driver 12v 300w 25a, low voltage transformer 240v to 12v dc transformer, led strip power supply, constant voltage led adapter for 12 volt led.
The transformer combines both the inverting signals to generate a 220v. The peaks will be 17v for the case of 12v rms. Web for a sine wave, such as your power voltage, the peaks will be sqrt (2) times higher than the rms level.