Motor-reduction unit switched on an absolute position signal

Details Motor-reduction unit switched on an absolute position signal Motor-reduction unit switched on an absolute position signal

2007-12-04

2007-12-04

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

C318S132000, C318S434000, C318S254100, C318S700000

Reexamination Certificate

active

10381739

ABSTRACT:
An electric actuator including at least a first P-phase automatically-switched brushless synchronous motor, P being an integer ranging between 1 and 6, and N pairs of poles at the rotor, N being an integer not less than 1. The actuator also includes a position sensor outputting signal to control an electronic circuit controlling the motor. The rotor of the motor drives a gear ratio reducing mechanism. The position sensor is coupled to the reduction unit output shaft to measure the absolute angular position of the reduction unit output shaft. The electronic circuit includes a circuit sequentially controlling the current of each of the phases producing automatic switching of powering sequences of the phases on the basis of the absolute position of the reduction unit output shaft.

REFERENCES:
patent: 4692674 (1987-09-01), Packard et al.
patent: 5334898 (1994-08-01), Skybyk
patent: 5452697 (1995-09-01), Sasaki et al.
patent: 5686804 (1997-11-01), Siraky
patent: 5818178 (1998-10-01), Marumoto et al.
patent: 5828193 (1998-10-01), Furuta
patent: 5847530 (1998-12-01), Hill
patent: 5852996 (1998-12-01), Nakamura et al.
patent: 5992383 (1999-11-01), Scholten et al.
patent: 6194856 (2001-02-01), Kobayashi et al.
patent: 6198275 (2001-03-01), Wolf et al.
patent: 6398330 (2002-06-01), Chua et al.
patent: 6465974 (2002-10-01), Watanabe
patent: 6686713 (2004-02-01), Desbiolles et al.
patent: 6967453 (2005-11-01), Miettinen
patent: 2002/0100156 (2002-08-01), Speller et al.
patent: 0 414 941 (1991-03-01), None
patent: 0 856 939 (1998-08-01), None
patent: 1 028 239 (2000-08-01), None
patent: 01 248010 (1989-10-01), None
patent: 09 322584 (1997-12-01), None

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