EP 1535387 A2 20050601 - SINGLE-PHASE ELECTROACTIVE MOTOR
Title (en)
SINGLE-PHASE ELECTROACTIVE MOTOR
Title (de)
MONOPHASIGER ELEKTROAKTIVER MOTOR
Title (fr)
MOTEUR ELECTROACTIF MONOPHASE
Publication
Application
Priority
- FR 0302556 W 20030821
- FR 0210755 A 20020830
Abstract (en)
[origin: WO2004021555A2] The invention relates to a rotary piezoelectric motor (1) in which a geometrical asymmetry can be introduced, e.g. in the counter-masses (11, 14) or in the stator fixing means (10), in order to produce a phase shift previously obtained using a phase quadrature power supply. A simplified single-phase power supply (40) can be used with one such motor. The inventive motors offer advantages in terms of cost and reliability, particularly for motors that require only a single direction of rotation. Said motors are particularly suitable for small motors such as those used for clock and watch making, microsurgery or microelectronics.
IPC 1-7
IPC 8 full level
H02N 2/00 (2006.01); H02N 2/10 (2006.01); H02N 2/12 (2006.01); H10N 30/20 (2023.01); H10N 30/80 (2023.01)
CPC (source: EP US)
H02N 2/0015 (2013.01 - EP US); H02N 2/106 (2013.01 - EP US); H02N 2/145 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2844114 A1 20040305; FR 2844114 B1 20051028; AU 2003274269 A1 20040319; AU 2003274269 A8 20040319; CA 2497177 A1 20040311; EP 1535387 A2 20050601; JP 2005537771 A 20051208; US 2005269903 A1 20051208; WO 2004021555 A2 20040311; WO 2004021555 A3 20040729
DOCDB simple family (application)
FR 0210755 A 20020830; AU 2003274269 A 20030821; CA 2497177 A 20030821; EP 03758255 A 20030821; FR 0302556 W 20030821; JP 2004532221 A 20030821; US 52576005 A 20050719