Re: Sync Motor Wanted

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>

Hi,

I have replaced all my non-salient pole motors with ground rotor salient 
ones.  I guess I just could not stand having to worry with it.  But I 
wonder if a John Freau controller would work?

I should also note that those non-salient motors do not like to run big 
rotors, they overheat and loose sync.  Probably 6 inch max with low 
windage.  The big poly one I gave to KEN did that.  But it worked fine for 
short runs.

Cheers,

         Terry

At 09:26 AM 4/17/2004, you wrote:
>Flipping the motor switch on or off a few times before a series of runs
>takes only about 10 seconds.  I usually do this with my 60Hz syncrhonized
>strobe light as well to make sure its in the right position.  Its no big
>deal and you only have to do it once as you can let the motor run between
>power-ups
>on your coil (i.e. demonstrations) etc...
>
>Dan
>
>
> > But do you really want to be always flipping on and off if they don't sync
> > correctly?  Is there a way to make a hysteresis motor sycn at 90 degrees
> > every time?
> >
> > Regards - Jim Mitchell