Electricity: motive power systems – Synchronous motor systems – Armature winding circuits
Reexamination Certificate
2005-02-04
2008-10-28
Masih, Karen (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Armature winding circuits
C318S716000, C318S727000, C318S801000
Reexamination Certificate
active
07443128
ABSTRACT:
An electronic device is provided for controlling a motor having three phases driven by a motor driver. In one implementation, the electronic device includes a detection means and a control circuit. The detection means includes three high-gain differential amplifiers and three A/D converters. The detection means detects back EMF voltages induced by the rotation of the motor and applies corresponding signals to the control circuit. The control circuit computes and filters the position and/or the speed of the motor and then delivers the filtered values of the computed rotor position and/or speed to control the motor driver. The motor may thus be controlled even at near-zero rotational speed.
REFERENCES:
patent: 6005364 (1999-12-01), Acarnley
patent: 6326760 (2001-12-01), Cardoletti et al.
patent: 6653829 (2003-11-01), Henry et al.
patent: 2006/0125439 (2006-06-01), Ajima et al.
International Preliminary Report on Patentability with Amended Claims, dated Dec. 30, 2005 (9 pages).
International Search Report, mailed Jun. 6, 2005 (2 pages).
Silverio Bolognani et al., “Sensorless Full-Digital PMSM Drive With EKF Estimation of Speed and Rotor Position,” IEEE Transactions on Industrial Electronics, vol. 46, No. 1, Feb. 1999, pp. 184-191.
Bieler Thierry
Cardoletti Laurent
Fleury Christian
Koechli Christian
Finnegan Henderson Farabow Garrett & Dunner LLP
Masih Karen
Micro-Beam S.A.
LandOfFree
Method and device for controlling motors does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for controlling motors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for controlling motors will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4019391