Stepping motor servo driving method and driving mechanism
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United States of America Patent
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Sep 22, 2009
Grant Date -
May 25, 2006
app pub date -
Nov 10, 2005
filing date -
Nov 19, 2004
priority date (Note) -
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Abstract
A servo driving method of the present invention to drive a stepping motor driven by a predetermined driving pulse, by a servo control method, is comprising a setting step of setting a driving mode of the stepping motor switchable at least between a first driving mode, in which the stepping motor is driven with a relatively large current, and a second driving mode, in which the stepping motor is driven with a relatively small current, and a switching step of switching the driving mode between the first driving mode and the second driving mode when a predetermined mode switching information is given. Thereby, it becomes possible to reduce the power consumption by supplying power efficiently to the stepping motor.
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