Re: [CAD_CAM_EDM_DRO] What is a 5 Phase stepper?

This is from "Jones on Stepper Motors" at http://www.cs.uiowa.edu/~jones/step/
It seems that they can have 5 leads or 10 leads. There is also info on variable reluctance (VR)
motors there. This is a great tutorial on steppers


To distinguish a 5-phase motor from other motors with 5 leads, note that, if the resistance between two consecutive terminals of
the 5-phase motor is R, the resistance between non-consecutive terminals will be 1.5R.

Note that some 5-phase motors have 5 separate motor windings, with a total of 10 leads. These can be connected in the star
configuration shown above, using 5 half-bridge driver circuits, or each winding can be driven by its own full-bridge. While the
theoretical component count of half-bridge drivers is lower, the availability of integrated full-bridge chips may make the latter
approach preferable.

Bill