i was resently given a big 2200VA UPS. ended up was like 10+ yrs old and conroler board was fried. got a pair of tronsformers from it thatst weigh about 20 lbs the i am reversing them so that instead of lov voltage to 120 i want 120 to 12. the low voltage side has 2 10AWG wires. i conected to a bridge rectifier and filter cap for DC, i'm considering seting up in paralell for more A, but like the 2nd on a seprate switch. is there anything to be woried about just letting the other one sit with no primary power to it, other than a bit extra heat, and the 120V outputput that it would make. also what do you think i can get out of just 1 transformer in terms of A?
also seen some bench supplys with sires/ paralel selection switches, may consider doing that, but don't know how they do that. tryed to figure out for anothe project and couldn't fiugre out.
also seen some bench supplys with sires/ paralel selection switches, may consider doing that, but don't know how they do that. tryed to figure out for anothe project and couldn't fiugre out.