Unless I misunderstand you, you should not expect to be able to measure a DC voltage on the output windings of a transformer, only AC voltage. To convert AC to DC voltage the winding must wire to a rectifier and filter capacitor and possibly a voltage regulator circuit or device. Not sure what you mean by output node? So what are you working with, a wall mounted power module? If so are you sure it's a DC module and not a AC module?Hello all,
I have a 120Vac to 28Vdc transformer but i'm not getting a DC reading at the output node but instead if i switch my voltmeter to AC mode... i get a reading (30Vac).
is my transformer still functional? do i need to put a real load at the output?
hi,ah then my guess was right lol... that is my mistake. i somehow assumed that the transformer by itself will give the dc voltage oops...
yeah i have a voltage regulator that will be connected to this so that with a 7812 (im feeding half of the 28v therefore 14v to it)
so after the 7812 i should be able to get a DC voltage then... coolio