Electricity: motive power systems – Reciprocating or oscillating motor – Energizing winding circuit control
Patent
1979-12-21
1981-06-23
Truhe, J. V.
Electricity: motive power systems
Reciprocating or oscillating motor
Energizing winding circuit control
318254, 318439, 310 49R, H02P 602
Patent
active
042753392
ABSTRACT:
A brushless D. C. motor is disclosed having two bifilar winding wire pairs with each bifilar pair forming alternate windings. Each winding is switched by a transistor which has a back poled diode connected in parallel therewith. The control circuit sequences energization of single windings with each winding energized being in a different bifilar pair than the next preceding energized winding whereby when a transistor is switched off the other winding of the bifilar pair and the associated back poled diode protect the transistor and provide an energy conserving/heat eliminating path for the induced current. Each winding is further formed of a pair of subwindings having an angle of separation therebetween approximately half the angular separation between adjacent windings.
REFERENCES:
patent: 3428837 (1969-02-01), Morreale et al.
patent: 3482156 (1969-12-01), Porath
patent: 3621312 (1971-11-01), Palmero
patent: 3663877 (1972-05-01), Clark
patent: 4029977 (1977-06-01), Chai et al.
patent: 4125792 (1978-11-01), Schmider
patent: 4127801 (1978-11-01), Leenhouts
Byte, vol. 4, No. 2, Feb. 1979, p. 105.
Burke Michael J.
Collins David W.
International Business Machines - Corporation
Lahtinen Robert W.
Redman John W.
Truhe J. V.
LandOfFree
Bifilar brushless DC 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 Bifilar brushless DC motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bifilar brushless DC motor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2210317