Rotation control circuit for a hall motor

Details Rotation control circuit for a hall motor Rotation control circuit for a hall motor

H - Electricity

02

P

318/96, 352/32.3

H02P 6/00 (2006.01) G11B 19/247 (2006.01) H02P 6/06 (2006.01)

Patent

CA 1304777

PATENT ABSTRACT OF THE DISCLOSURE A rotation control circuit for a Hall motor of reduced-size and suppressed irregular rotation and having a controller that stores in a memory circuit data indicative of an irregular magnetization of a rotor magnet derived from a change of the magnetic field of the rotor magnet detected by a Hall element as an irregular rotation information signal, in which the irregular rotation information signal is input to a speed servo loop of the Hall motor, whereby the change of magnetic field of the rotor magnet is used as an FG signal to form a speed servo circuit.

612935

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