Motor drive apparatus
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United States of America Patent
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-
Feb 21, 2017
Grant Date -
Feb 11, 2016
app pub date -
Oct 22, 2015
filing date -
Apr 26, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A motor drive apparatus that controls a current flowing through a coil of a motor, including a comparing section that compares the current flowing through the coil to a control current input thereto; an operation selecting section that selects an operational state according to a comparison result of the comparing section; a driving section that receives a designation signal designating a current mode and a stop mode, drives the coil in the operational state selected by the operation selecting section when the designation signal designating the conductive mode is received, and drives the coil in the braking state when the designation signal designating the stop mode is received; and a setting section that controls a start of the designation signal designating the stop mode or a start of a period during which the control current is zero.
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