June 2014
Beginner to intermediate
208 pages
7h 14m
English
Content preview from Computer Interfacing
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Motor drives
then in order to rotate it through exactly 40 degrees
would involve nothing more than giving it four pulses.
No elaborate feedback arrangements are needed.
Naturally, there are some complications and practical
motors need a little more than a single pulsed input. But
stepper motor controllers and drivers are available in
IC form, requiring only a few external components. So
now for some basic principles.
Stepper motors
A stepper motor consists of a stator, rotor and windings.
It does not rotate when power is applied but moves
through a precise angle in response to a single pulse.
Therefore the total angular displacement is give ...
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