Thane Heins Perepiteia.

[EMdevices]

aether22,Ã, Ã,  see this link:Ã, Ã,  http://www.allaboutcircuits.com/vol_2/chpt_13/12.htmlÃ,  Ã, Ã,  I had a class in electric machines years ago and I remember having the same objections at the time, but it works.Ã,  They use them in drills because of the higher torque for the volume, higher speeds etc...Ã, 

EM

P.S.Ã, Ã,  Oh I see what you are saying.Ã,  Yes,Ã,  certain DC motors, that use magnets etc, will not run, they will just vibrate, don't try this at homeÃ, Ã,  LOLÃ,  :)Ã,  Ã,  Ã,  I guess what I had in mind is properly called "AC Commutated Motors" or "Universal Motor" that can run on either DC or AC, where running them on DC is slightly better then AC.  Good point.

[EMdevices]

speaking of motors,   is there a configuration that can generate a synchronous AC induction motor?   The emphisis is on Induction.   I want no slipage at all and no brushes.   But when the power is off no magnetism should exist in the rotor(you can use magnets of course but none of that).  In other words, somehow induce current in the rotor with transformer action, then use that current to energize the rotor and create torque with no brushes involved whatsoever, simular in performace to a DC motor or one of these Universal motors. 

EM

[aether22]

speaking of motors,   is there a configuration that can generate a synchronous AC induction motor?   The emphisis is on Induction.   I want no slipage at all and no brushes.   But when the power is off no magnetism should exist in the rotor(you can use magnets of course but none of that).  In other words, somehow induce current in the rotor with transformer action, then use that current to energize the rotor and create torque with no brushes involved whatsoever, simular in performace to a DC motor or one of these Universal motors. 

EM

You must have some slip I think but increasing the strength of the stator field (odd name for a rotating field huh?) will reduce the slip.

Synchronous motors are pretty much sychronous though
They use a magnetic core so speed difference is not required.

Ok, I do see what you are saying though, you could have a design which uses a pulsing to induce a current and if angled correctly it would rotate but the speed of the resulting rotation would be far below line freq.

[Heinstein]

If you run a DC motor on AC it viabrates rather than turning.

Can I do this at home?

Yes but make sure the bedroom door is locked!

Thane

[aether22]

If you run a DC motor on AC it vibrates rather than turning.

Can I do this at home?

Yes but make sure the bedroom door is locked!

Thane

I've got the same question actually.

Can I do it at home? Not without your specs
No, patience isn't my strong suit.

Oh, and unlike JustMe I'm gonna video it and put it on youtube