Title:
METHOD FOR DRIVING LINEAR ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2012/099183
Kind Code:
A1
Abstract:
An amplitude control unit (40) detects the amplitude of a movable element (12) that reciprocates relative to a stator (11), detects fluctuations in a load over time according to detected fluctuations over time in the amplitude, and detects an abnormality on the basis of the detected fluctuations over time in the load. The amplitude control unit (40) outputs the detected amplitudes to a control output unit (50). The control output unit (50) controls a drive current (Id) for reciprocating the movable element (12) on the basis of the amplitude information supplied from the amplitude control unit (40).
Inventors:
IBUKI YASUO
OHBA TAKAFUMI
WATANABE KAZUNORI
OHBA TAKAFUMI
WATANABE KAZUNORI
Application Number:
PCT/JP2012/051020
Publication Date:
July 26, 2012
Filing Date:
January 19, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
IBUKI YASUO
OHBA TAKAFUMI
WATANABE KAZUNORI
IBUKI YASUO
OHBA TAKAFUMI
WATANABE KAZUNORI
International Classes:
H02K33/16; H02P25/06
Foreign References:
| JP2001016892A | 2001-01-19 | |||
| JPH07281729A | 1995-10-27 | |||
| JPS63239504A | 1988-10-05 | |||
| JP2001016892A | 2001-01-19 |
Other References:
See also references of EP 2667504A4
Attorney, Agent or Firm:
ONDA, Hironori et al. (JP)
Hironori Onda (JP)
Hironori Onda (JP)
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Claims: