Electric motor with oscillating rotary output and controlled amp

Details Electric motor with oscillating rotary output and controlled amp Electric motor with oscillating rotary output and controlled amp

1997-01-06

1998-05-19

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Oscillating

310 15, 310 36, 310 39, 310259, 310266, 310156, 318119, 318127, 318128, H02K 3500

Patent

active

057539855

ABSTRACT:
Disclosed is an AC electric motor with oscillating rotary output, a permanent magnet rotor having radially magnetized magnets, and feedback control of oscillation amplitude. Amplitude control is accomplished without a separate amplitude sensor by using an accurate model of the motor as a basis for calculation of amplitude from measurements of motor voltage and current. The motor has high efficiency, low inertia, and uses a relatively small volume of permanent magnet per unit power output.

REFERENCES:
patent: 2464320 (1949-03-01), Klinkhamer
patent: 3475629 (1969-10-01), Lagier
patent: 3900749 (1975-08-01), Carriker
patent: 4038588 (1977-07-01), Woolfson et al.
patent: 4433261 (1984-02-01), Nashiki et al.
patent: 4583027 (1986-04-01), Parker et al.
patent: 4811835 (1989-03-01), Bullivant et al.
patent: 5038064 (1991-08-01), Fiorenza
patent: 5496153 (1996-03-01), Redlich
patent: 5598070 (1997-01-01), Coleman

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