Re: Typical bandwidth of 60hz wallwart transformers

Jim Flanagan 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? What about using some small
audio transformers? I need the output to be around 160 Vrms
and am not sure if a miniature audio transformer has sufficient
dielectric properties to handle this. Obviously, I am trying
to do this on the 'cheap'. Any suggestions?

thanks for any input
Jim
WB5KYE

Small 60 Hz transformers work pretty well to at least a kilohertz, at no more power than their original rating.
.

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