Transformer Parallel and Series

schmitt trigger

Joined Jul 12, 2010
I have done it in the past, to obtain an oddball secondary voltage.
Not an elegant solution.
But current rating of the combo will be only the ratings of the lowest rated transformer.

Of course, proper winding phasing must be observed.


Joined Mar 14, 2008
Secondaries in series is okay, but connecting them in parallel is problematic, due to slight differences in output voltage, even for identical model transformers, which can generate circulating currents in the windings.