Electromagnetic motor

Details Electromagnetic motor Electromagnetic motor

H - Electricity

02

K

H02K 1/27 (2006.01) H02K 21/24 (2006.01) H02K 29/10 (2006.01) H02K 29/14 (2006.01)

Patent

CA 2080162

ABSTRACT OF THE DISCLOSURE An electromagnetic motor includes a rotor having a plurality of magnets mounted along a perimeter of the rotor. Preferably, adjacent magnets have opposite poles facing outward. One or more electromagnets are disposed adjacent to the perimeter or the rotor so that as the rotor rotates, the magnets mounted on the rotor are carried near the poles of the electromagnets. current is supplied to the electromagnets by a drive circuit in a predetermined phase relationship with the rotation of the rotor such that, for substantially all angular positions of the rotor, magnetic attraction and repulsion between the poles of the electromagnets and the magnets mounted on the rotor urge the rotor to rotate in a desired direction. Reflective material is mounted on the rotor in predetermined angular positions. The drive circuit includes a photosensitive device which produces a signal whose value varies according to whether the device 1 receiving light reflected from the reflective material. The signal is amplified to produce drive current for the electromagnets.

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