Drive circuit for brushless DC motors

Details Drive circuit for brushless DC motors Drive circuit for brushless DC motors

2006-06-27

2006-06-27

Duda, Rina (Department: 2837)

Electricity: motive power systems

Switched reluctance motor commutation control

C318S132000, C318S434000, C388S800000

Reexamination Certificate

active

07067998

ABSTRACT:
A drive circuit for brushless DC motors including a rotor and a stator with at least one stator coil includes a commutation device which supplies commutation pulses of drive current to the stator coil(s). The commutation device senses the rotor position and calculates current rotor speed therefrom. The rotor speed is then used to shift the commutation circuits according to predetermined functions. The shifting of commutation currents is occasioned by shifting either or both of the ignition part of a commutation pulse and the extinction part of such pulse.

REFERENCES:
patent: 4119895 (1978-10-01), Muller
patent: 4276504 (1981-06-01), Nagase et al.
patent: 4376262 (1983-03-01), Okuda et al.
patent: 4426585 (1984-01-01), Bigalke
patent: 4507590 (1985-03-01), Miyazaki
patent: 4651068 (1987-03-01), Meshkat-Razavi
patent: 4712050 (1987-12-01), Nagasawa et al.
patent: 4803408 (1989-02-01), Uhde et al.
patent: 4804892 (1989-02-01), Muller
patent: 4808902 (1989-02-01), Miyazaki et al.
patent: 5038090 (1991-08-01), Kawabata et al.
patent: 5043643 (1991-08-01), Hedlund et al.
patent: 5138244 (1992-08-01), Bahn
patent: 5227704 (1993-07-01), Erdman
patent: 5569900 (1996-10-01), Blohbaum
patent: 5583404 (1996-12-01), Karwath et al.
patent: 5640073 (1997-06-01), Ikeda et al.
patent: 5717297 (1998-02-01), Karwath et al.
patent: 6384554 (2002-05-01), Karwath et al.
patent: 1301240 (1992-05-01), None
patent: 28 56 538 (1979-08-01), None
patent: 31 07 641 (1982-01-01), None
patent: 31 13 092 (1982-10-01), None
patent: 31 51 254 (1983-07-01), None
patent: 31 51 257 (1983-07-01), None
patent: 32 09 391 (1983-09-01), None
patent: 32 09 394 (1983-09-01), None
patent: 33 25 610 (1984-01-01), None
patent: 35 37 403 (1987-04-01), None
patent: 38 17 916 (1988-12-01), None
patent: 38 19 062 (1989-12-01), None
patent: 3819 064 (1989-12-01), None
patent: 40 21 098 (1991-01-01), None
patent: 40 09 184 (1991-09-01), None
patent: 0 397 143 (1990-05-01), None
patent: 0 505 159 (1992-09-01), None
Steltzer, J., “Mit Stammbaum,” ElectronikPraxis, Nr. 19-3, Oct. 1991, pp. 56-58, 60-61.
Draeger, Jurgen et al. Forschungsberichte, No. 2754, 1978, pp. 60-61.
Schaltverhalten der Elektronischen Steuerung, NaiS/SDS, ASF Lüfter, Nov. 13, 1991.

Affiliated with

Also associated with

Rating

Drive circuit for brushless DC 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 Drive circuit for brushless DC motors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drive circuit for brushless DC motors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3655830