Circuit design for rectifying and voltage doubling a 2-phase 240VAC supply to ±340V

I have been messing around with a circuit simulator trying to find out the best way to rectify a 2 phase supply (240vac) and double it (~ +340, -340) Any circuits or suggestions are appreciated, Thanks

Hello.
The design depends on the type of load you want to use.
If you use a Graetz bridge, and then you level the output with an electrolytic capacitor of 10000 microFarads and VL> 500 VL, you will get a voltage of about 325 Volts DC.
If you really want to double the voltage, you can use the classic doubler circuit, consisting of 2 polyester capacitors and 2 diodes. It is important to use components that support a high voltage,> 500V for capacitors and 1000V for diodes.
Cheers
Giovanni