Thanks for first replies.
I don´t know if I can explain exactly what I´m trying to do... After all living in south Brazil, English is not my natural language.
Sceadwian: Yes I´m a ham
. I don´t really need 60A, I need 45A but until I now in this hobby a good amount of extra feeding power can solve a lot of problems (ripple, overheating...).
Well...
Doing this project using a typical linear approach we have:
A) A transformer from 220V AC to something like 25V/60A AC.
B) A rectifier to convert AC to DC.
C) Two huge filtering capacitors 2 x 60.000 uF.
D) A regulation stage using common ICs like LM78XX driving lots of power transistors.
What I´m asking is... Using all the same for A, B and C, there some advantage changing only part D to a switched regulation (13.8V) approach?
Can this give me a better regulation? Maybe less waste in heating energy. Maybe less power transistors are needed... I don´t know
If yes, I ´m thinking to use the circuit in page 27 **broken link removed** and change only the power driver transistors and the 140uH inductor.
Thanks all.