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AssigneeKorea Electronics Technology Institute
InventorsJun Hyuk CHOI, Joon Sung PARK, Jin Hong KIM, Byong Jo HYON, Yong Su NOH, Dong Myoung JOO
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This application relates to an absolute position detection device and detection method of a rotating body. In one aspect, the device includes first row magnets coupled to a rotating body to rotate together and having n pole pairs, and second row magnets coupled to the rotating body to rotate together and having (n+1) pole pairs. The device also includes a first Hall sensor installed adjacent to the first row magnets and configured to detect a change in magnetism according to rotation of the first row magnets. The device further includes a second Hall sensor installed adjacent to the second row magnets and configured to detect a change in magnetism according to rotation of the second row magnets. The device further includes a controller configured to measure an absolute position of the rotating body using signals output from the first and second Hall sensors.
An absolute position detection device of a rotating body, the absolute position detection device comprising
An absolute position detection method of a rotating body using first row magnets and second row magnets coupled to a rotating body and rotating, the absolute position detection method comprising:
An absolute position detection method of a rotating body using first row magnets, second row magnets, and third row magnets coupled to a rotating body and rotating, the absolute position detection method comprising
Dependencies are inferred from the claim text.