Hey All,

I'm trying to make a bi polar power supply but don't have a center tapped transformer. I do, however, have a dual secondary transformer. My question is, can I essentially tie the negative of the first secondary negative to the second secondary positive and make a makeshift center tap? Like this:

Here is the center tapped one, is it the same as this one:

with the dual secondaries? Is there something else I need to add? And would you throw up a resistor somewhere? The IC's are going to be voltage regulators.

Thanks a lot!!!!

Bzzzt

 

Presumably the two secondaries have the same voltage - then yes no problem.

 

Presumably the two secondaries have the same voltage - then yes no problem.

Yes, I concur, they are equivalent circuits...Full wave bridge all tha' way...

 

Yes, keep them in phase.