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Patent Searching and Data


Title:
PHASE DETECTOR
Document Type and Number:
Japanese Patent JP2018169327
Kind Code:
A
Abstract:
To provide a phase detector for detecting the phase of such a rotational body as a rotor of a motor, the phase detector allowing output of phase signals necessary to control the rotational body more precisely.SOLUTION: A phase detector 10 for detecting the phase of a rotational body 102 includes: a movable conductor 104 on the surface of the rotational body; a fixed conductor 106 separate from the surface of the rotational body by a predetermined distance, the fixed conductor 106 facing the movable conductor with a period according to the rate of rotation of the rotational body; and a signal output circuit 101 for outputting a signal based on the capacitance generated between the movable conductor and the fixed conductor.SELECTED DRAWING: Figure 2

Inventors:
HATTORI MAKOTO
Application Number:
JP2017067754A
Publication Date:
November 01, 2018
Filing Date:
March 30, 2017
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
G01D5/241; H02K29/06
Attorney, Agent or Firm:
特許業務法人クシブチ国際特許事務所