"Carl Ijames" wrote in message
news
I've heard of some electronic devices having problems running on the
output of a modified sine wave output inverter or small generator
that may not have the best sine wave shape. Would there be any
problem using a 1, 2, or 3 stage AC line filter to clean up the
output waveform of either, and would it do any good? They aren't
that expensive so adding one to a generator would seem to me to make
a lot of sense. What am I missing?

--
Regards,
Carl Ijames

AC line filters reduce higher harmonics but have little effect at the
fundamental frequency. The components simply aren't big enough to
store much energy and return it later.

Ferroresonant transformers are 60 Hz sine wave filters with voltage
regulation, but look at the weight:
http://www.hammondmfg.com/CVR.htm

http://www.lamarchemfg.com/productde...rter)/263.html

See pages 13 and 14:
http://www.etmsolar.com/INFO2011/pvc...ers%20work.pdf
"Unfortunately, inductance causes the transformer to have a relatively
low
efficiency (typically about 50%) and the waveform is very load
sensitive."

-jsw