You need a transformer and a rectifier at the least, and possibly the most. Could you be more specific as to what you need it for, as it may make a difference to the actual circuit(s)?
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its to power a fridge in a car, currently it runs of a car battery between 11 - 14 volts and current is between 8 and 10 amps, my mum wants to be able to connect it to 240 volts when at home. I have found a couple of circuits that would do the job just looking to the more experienced to see if there are any better options out there.
Can you show us these circuits? I think all you really need is a big 12V transformer, rectifier or 4 diodes and maybe a big smoothing capacitor. Plus a suitable connector.
Heres a couple im considering as a starting point, whats your opinion?thankshttp://www.mitedu.freeserve.co.uk/Circuits/Power/1230psu.htmhttp://www.rason.org/Projects/powsupply/powsupply.htm