Magnetic absolute encoder and motor
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United States of America Patent
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Sep 30, 2014
Grant Date -
Sep 13, 2012
app pub date -
Nov 18, 2009
filing date -
Nov 18, 2009
priority date (Note) -
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Abstract
A magnetic absolute encoder includes: a board-holding assembly mounted to a motor case assembly side; and a flexible printed wiring board which is held, by the board-holding assembly, in the shape of a loop surrounding multipolar and bipolar ring magnets. On the flexible printed wiring board, multipolar-side hall elements and bipolar-side hall elements are mounted and a wiring pattern relating to the hall elements are printed. The assembling work and wiring work of the magnetic absolute encoder provided with a multipolar magnetic encoder and a bipolar magnetic encoder can be performed simply in a short time.
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