On Fri, 27 Feb 2004 17:49:50 -0600, Eric Christensen wrote
on Re: [EE ] Stepper motor voltage question:

>After re-examining this I think the part I missed was the use of the word
>'inserting.'  If the resistors are inserted only at stopping points and removed
>when moving, that makes more sense.  Still seems awfully inefficient though.

No, the resistors are permanently inserted.

As for efficiency, I'll say that efficiently using a stepper
motor is an inefficient process; stepper motors have their
advantages e.g. in positioning applications, simplicity of
control, which implies they have their niche. But they need
a lot of power.

If what you need is either power or torque or precision or
acceleration AND power savings, then consider other
techniques such as servomotors (DC motor + tacho + encoder
or resolver).

* Xrobert.soubie@free.frX (veuillez supprimer les "X")
* http://www.astrosurf.com/soubie
* Au royaume des aveugles, les borgnes sont mal vus... - P.Dac

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