Re: [CAD_CAM_EDM_DRO] Stepper Motor Power supply Sizing.

On Thu, 29 May 2003 15:51:59 +1000, you wrote:

>Hi,
>
>I have been looking at Marriss's White paper on Power Supply's where it
>states that the current requirements for a stepper motor is 2/3 of the
>motors rated current in Parallel and 1/3 when in series.

My understanding is that the requirements are not based strictly on
the ohms of the motor winding, but on the amount of power that the
motor can dissipate at any one time. Generally, steppers are not
rated for both windings on at the same time with full current.

Harvey

>
>So, If I have a 4ohm, 4A/phase 8 wire stepper and I wire it in parallel, is
>the current requirements for the motor 4*2/3 = 2.66A or is it 2*2.66 =
>5.333A as the motor has 2 phases.
>
>Thanks,
>
>
>Peter Homann
>mailto:Peter.Homann@...
>Adacel Technologies Limited,
>250 Bay St, BRIGHTON, 3186, AUSTRALIA
>http://www.adacel.com <http://www.adacel.com>
>Telephone +61 (3) 8530 7777, Facsimile +61 (3) 9596 2960
>Mobile 0421-601 665
>
>