Title:
駆動装置
Document Type and Number:
Japanese Patent JP5661340
Kind Code:
B2
Abstract:
A driving apparatus has a correction value output unit for outputting correction values DeltaTa and DeltaTb to correct differences between signals which are output from an A sensor a B sensor when an A-phase coil and a B-phase coil are not energized and signals which are output from the A sensor and the B sensor when the A-phase coil and the B-phase coil are energized. An energization direction of the A-phase coil is switched on the basis of a time A which is measured by a time measurement unit and the correction value DeltaTa which is output from the correction value output unit. An energization direction of the B-phase coil is switched on the basis of a time B which is measured by the time measurement unit and the correction value DeltaTb which is output from the correction value output unit.
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Inventors:
西谷 仁志
Application Number:
JP2010132888A
Publication Date:
January 28, 2015
Filing Date:
June 10, 2010
Export Citation:
Assignee:
キヤノン株式会社
International Classes:
H02P8/38
Attorney, Agent or Firm:
Okabe 讓
Shin-ichi Usui
Takao Ochi
Seiichiro Takahashi
Hiroshi Yoshizawa
Masami Saito
Katsuhiko Kimura
Takafumi Tanaka
Shin-ichi Usui
Takao Ochi
Seiichiro Takahashi
Hiroshi Yoshizawa
Masami Saito
Katsuhiko Kimura
Takafumi Tanaka