On 09/03/17 00:41, 99guspuppet wrote:
> The waveform of my UPS ( when running on battery ) is a two step rectangu=
lar wave.  It measures 120 VAC RMS.  Will a 120VAC to 5VDC power adapter wo=
rk if it is based on a class 2 transformer ?
>
> Gus in Denver

Chances are it will work but the high frequency components in the waveform =
will put extra stress on any EMI filter capacitors which may reduce the lif=
espan of the power supply. You may encounter increased "touch current" for =
the same reason.

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