I need to build a powersupply, 240 volts AC with an output of 12 volts dc and 8.5 amps anyone know any good circuits?


lemonie8 years ago
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)? L
elstev0 (author)  lemonie8 years ago
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.
lemonie elstev08 years ago
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. L
elstev0 (author)  lemonie8 years ago
Heres a couple im considering as a starting point, whats your opinion?
thanks

http://www.mitedu.freeserve.co.uk/Circuits/Power/1230psu.htm
http://www.rason.org/Projects/powsupply/powsupply.htm