Hi
Very "off the wall" question directed to our gifted electricals and electronics welders...
About 240V to 110V tranformers used with professional power tools here in the UK - needed by law on building sites - which are heavy - my
3kVA one (?) weighs 19.5kg (43lb). These are "centred-tapped" (to Earth potential) - so see 55V between Earth and either "hot" wire.Any "bright sparks" like Iggy - would it be possible to make a much lighter transformer using inverter technology?
Perhaps chop up the incoming 50Hz AC without rectification at thousands of Hz, put that through a much smaller and lighter transformer then rectify the output to an unsmoothed DC to run power tools?
As all wall sockets rated at 13A with 240V, power available = 240 * 13 = 3120VA - which would be a good capacity for this device.
???
Richard Smith