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Re: Phase controller question.

Original poster: robert heidlebaugh <rheidlebaugh-at-desertgate-dot-com> 

Ed your first reaction is logical and would be exaxtly what you should
expect.  if filtered dc were applied. A diode supplies pulsating power and
not DC. The reactance of many AC motors will react as though AC was applied
when pulsating DC is applied. That is why AC appliences work with vibrator
and many older type transistor inverters are used. Certainly not all motors.
Some require only pure sign wave power, that is why they make ,expensive,
sign wave power inverters. You can only know if ,,.   if your motor will
work you try it. No rule applies. Some will NOT work.
    Robert    H

 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > Date: Sun, 27 Jun 2004 11:21:22 -0600
 > To: tesla-at-pupman-dot-com
 > Subject: Re: Phase controller question.
 > Resent-From: tesla-at-pupman-dot-com
 > Resent-Date: Sun, 27 Jun 2004 11:43:51 -0600
 > Original poster: Ed Phillips <evp-at-pacbell-dot-net>
 > "Original poster: robert heidlebaugh <rheidlebaugh-at-desertgate-dot-com>
 > This may ir may not work depending on the type of motor you are using. A
 > simple diode in series will provide an equivelant of 87 V if your motor
 > will
 > tollerate 1/2 wave power.
 > Robert   H"
 > I can't imagine any AC motor (brush type excluded, of course), at least
 > of appreciable power, that wouldn't saturate and smoke if fed with
 > half-wave rectified DC.
 > Ed