Three-speed dual-winding direct current permanent magnet motor m

Details Three-speed dual-winding direct current permanent magnet motor m Three-speed dual-winding direct current permanent magnet motor m

1996-11-13

1999-07-20

Martin, David

Electricity: motive power systems

Armature circuit control

Plural, diverse or diversely controlled, armature or primary...

318495, 318498, 388838, H02P 132

Patent

active

059259990

ABSTRACT:
A direct current motor having a primary armature winding, a secondary armature winding and a switching circuit adapted to selectively energize the primary winding and the secondary winding to achieve three-speed motor operation is disclosed. The system is adapted to achieve a high speed of the motor by energizing only the primary winding, a medium speed of the motor by energizing only the secondary winding, and a low speed of the motor by energizing both the primary winding and the secondary winding. The system also includes a voltage source providing a direct current level voltage with respect to an electric ground and a switching circuit adapted to operate the motor. The switching circuit is coupled to the voltage supply for energizing the primary winding only to achieve a high speed, energizing only the secondary winding to achieve a medium speed, and energizing both the primary winding and the secondary winding in series with each other to achieve a low speed. A method of operating the motor also disclosed.

REFERENCES:
patent: 2916685 (1959-12-01), Genuit
patent: 3063002 (1962-11-01), Phelon
patent: 3596161 (1971-07-01), Swanke et al.
patent: 3633057 (1972-01-01), Smith et al.
patent: 3668491 (1972-06-01), Kelley et al.
patent: 3678357 (1972-07-01), Swanke et al.
patent: 3721875 (1973-03-01), Feldner et al.
patent: 3737750 (1973-06-01), Kearns
patent: 3943421 (1976-03-01), Shibata et al.
patent: 4019106 (1977-04-01), Doren
patent: 4041360 (1977-08-01), Morris
patent: 4066937 (1978-01-01), Pfarrer et al.
patent: 4322665 (1982-03-01), Landgraf
patent: 4454460 (1984-06-01), Tahara et al.
patent: 4456751 (1984-06-01), Messelt et al.
patent: 4710661 (1987-12-01), Gjota
patent: 4755702 (1988-07-01), Iijima et al.
patent: 4890049 (1989-12-01), Auinger
patent: 4910790 (1990-03-01), Kershaw
patent: 4947072 (1990-08-01), Watkins et al.
patent: 4948998 (1990-08-01), Fink et al.
patent: 5023532 (1991-06-01), Gakenholz
patent: 5063319 (1991-11-01), Mason et al.
patent: 5336956 (1994-08-01), Haner
patent: 5424599 (1995-06-01), Stroud
patent: 5455885 (1995-10-01), Cameron
patent: 5521471 (1996-05-01), Yang
Patent Abstracts of Japan (JP 63 023587) vol. 012, No. 232 (E-628) Jan. 1988 Japan.
Patent Abstracts of Japan (JP 60 241760) vol. 010, No. 104 (E-397) Nov. 1985 Japan.

Affiliated with

Also associated with

Rating

Three-speed dual-winding direct current permanent magnet motor m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Three-speed dual-winding direct current permanent magnet motor m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-speed dual-winding direct current permanent magnet motor m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1324606