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Electric Motors and Drives
book

Electric Motors and Drives

by Austin Hughes
October 2013
Beginner to intermediate content levelBeginner to intermediate
316 pages
13h 14m
English
Newnes
Content preview from Electric Motors and Drives
246 Electric Motors and Drives
Half stepping
We have already seen how to step the motor in 30° incre-
ments by energizing the phases one at a time in the sequence
ABC A etc. Although this '1-phase-on' mode is the simplest
and most widely used, there are two other modes which are
also frequently used. These are referred to as the '2-phase-
on' mode and the 'half-stepping' mode. The 2-phase-on can
provide greater holding torque and a much better damped
single-step response than the
1-phase-on
mode; and the half
stepping mode permits the effective step angle to be halved -
thereby doubling the resolution - and produces a smoother
shaft rotation. ...
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Publisher Resources

ISBN: 9781483105277