Re: High Voltage Input Inverters

[Jim Phillips <james-phillips@uiowa.edu>]

Lee Hart wrote:
> If it is a capacitor motor, you could use it as-is, but would gain some
> efficiency if the second winding was driven with a separate H-bridge
> with a 90 degree phase shift (a capacitor motor is really a 2-phase
> motor).

This is what I was wondering.  Typically, is the second
winding on a capacitor-run motor REALLY just an
identical second phase.  Is it the same as the first
winding (impedance, resistance, number of turns, etc)
only rotated 90 degrees magnetically, or they typically
change something, knowing that it will have a capacitor
in series with it?

thanks
jim phillips