Commutation of sensorless direct-current motors

Details Commutation of sensorless direct-current motors Commutation of sensorless direct-current motors

2005-05-03

2005-05-03

Masih, Karen (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C388S809000, C318S636000

Reexamination Certificate

active

06888331

ABSTRACT:
The invention relates to a sensorless commutation of a direct-current motor. To allow an exact, easy to design, flexible, and highly integratable circuit arrangement for commuting motor devices, analogue phase detectors are replaced by digital devices, in particular Sigma-Delta-modulators, which oversample the induced voltages of coils of said motor.

REFERENCES:
patent: 5724037 (1998-03-01), Lee
patent: 5835043 (1998-11-01), Tsuchida et al.
patent: 5901176 (1999-05-01), Lewison
patent: 5974089 (1999-10-01), Tripathi et al.
patent: 20020084772 (2002-07-01), Ruha et al.
patent: 3710509 (1988-11-01), None
Patent Abstracts of Japan, Tawara Kazuo: “Driving Of Brushless DC Motor” Publication No. 09154294, Oct. 6, 1997, Application No. 07310288, Nov. 29, 1995.
Patent Abstracts of Japan, Ueda Kazuhiko: “Sensorless Drive Device And Method Of brushless DC Motor Using Digital Phase Synchronization Loop” Publication No. 2001061291, Jun. 3, 2001, Application No. 11235524, Aug. 23, 1999.

Affiliated with

Also associated with

Rating

Commutation of sensorless direct-current 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 Commutation of sensorless direct-current motors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Commutation of sensorless direct-current motors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3418978