| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure allowing to reduce a space for arranging a pair of sensors opposed to the detected surface of an encoder 4. SOLUTION: A hall IC 10a is used as the pair of sensors. This hall IC 10a includes an IC body 11a and a plurality of lead terminals 12, 12. The IC body 11a is the one which is made into an IC by combining a pair of hall elements 13, 13 respectively corresponding to detection parts of the pairs of sensors, and a signal processing part for processing voltage signals of both hall elements 13, 13. Moreover, the hall IC 10a has a circuit configuration that mutually inverts the polarities of the phases of both voltage signals processed by the signal processing part which respectively correspond to output signals of the pair of sensors. The above problem is solved by adopting such a structure. COPYRIGHT: (C)2009,JPO&INPIT
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