Re: Typical bandwidth of 60hz wallwart transformers



In article <462b72df$0$27027$4c368faf@xxxxxxxxxxxxxx>,
Jim Flanagan <jflan@xxxxxxxxxxxxxxx> wrote:
Hi -
I am going to be designing a 400hz 3ph test generator
(about 1W max) and want to use some 60Hz transformers
to use in a DC-AC inverter (linear). Would these
show a significant rolloff at 400Hz or is the bandwidth
OK for this application?

Avoid lamination transformers because they can
have a poor output impedance due to their higher
leakage inductance.

Toroidal mains transformers will work ok.

The flux density will be about 1/7th of what it
was designed for, so you can run what was a 115V
primary as a 160V secondary with no trouble.

--
Tony Williams.
.


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