Method for the commutation of brushless direct current motor

Details Method for the commutation of brushless direct current motor Method for the commutation of brushless direct current motor

2006-04-18

2006-04-18

Ip, Paul (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S434000, C318S254100

Reexamination Certificate

active

07030583

ABSTRACT:
A method for the commutation of a brushless direct current motor having at least one motor winding in which the position of the rotor with respect to the stator is determined, a commutation signal is generated from the position, and the motor winding is energized by a preset commutation angle as a function of the commutation signal. Depending on the construction and energization of the motor, either (i) the polarity of the winding current is registered when a commutation signal appears and the commutation angle is changed as a function of the recorded polarity of the winding current in such a way that the winding current is essentially zero or has a zero point when a commutation signal appears, or (ii) the absolute value of the winding currents is measured and the commutation angle is changed as a function of the absolute value of the winding currents in such a way that the total excitation of the momentary phase calculated from the winding currents is essentially zero when a commutation signal appears.

REFERENCES:
patent: RE26622 (1969-07-01), Neumann et al.
patent: 4481440 (1984-11-01), Muller
patent: 4651241 (1987-03-01), von der Heide et al.
patent: 4769581 (1988-09-01), Rilly
patent: 5003455 (1991-03-01), Miller
patent: 6172498 (2001-01-01), Schmidt et al.
patent: 6441572 (2002-08-01), Batzel
patent: 6847186 (2005-01-01), Kerlin
patent: 2001/0030517 (2001-10-01), Batzel
patent: 2002/0014870 (2002-02-01), Krotsch et al.
patent: 2005/0135794 (2005-06-01), Vijayan et al.
patent: 2005/0141887 (2005-06-01), Lelkes
patent: 2005117895 (2005-04-01), None

Affiliated with

Also associated with

Rating

Method for the commutation of brushless direct current motor 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 for the commutation of brushless direct current motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the commutation of brushless direct current motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3544900