3 Jun
2010
3 Jun
'10
6:30 p.m.
Since in this
case the first test is an easy one to do (namely measuring
the AC voltage from the transformer secondary winding), I wouldn't even
think of not doing it.
Yes Tony... I have done all of that. The secondary is dropping to nearly
6 VAC with only 5A load on the DC side of the bridge and 120VAC supplied to the primary. The ripple on the DC side is in
excess of 1V with that
same 5A load. I have swapped in alternative filter caps temporarily
and see little improvement. I checked the bridge for shorted diodes or
excessive loss and it looks OK.
I assume youy've also checked for open diodes in the bridge. If it was
running as a half-wave rectifier you might have problems.
-tony