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echo: electronics
to: JASEN BETTS
from: WAYNE CHIRNSIDE
date: 2003-07-31 09:50:00
subject: Re: power supply

-=> JASEN BETTS wrote to BEN RITCHEY <=-

 JB> Hi BEN.

 JB> 25-Jul-03 06:30:50, BEN RITCHEY wrote to ROY J. TELLASON

 BR> I wonder if that's the same technology as A/C motors that use
 BR> capacitors and how one would calculate the uF value?

 JB> AFAIK motors with capacitors are split-phase induction motors ...
 JB> dunno of the cap is doing phase conversion or power factor correction
 JB> or both.

I _think_ they use it on a starter winding as without it
they won't start or won't know which direction to turn.
The cap introduces phase shift in a _start_ winding kicking
the motor off and running then as charged sort of just
leaves the picture.
I _think_ that's how they work anyway.
 
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