Electricity: motive power systems – Positional servo systems – Pulse-width modulated power input to motor
Patent
1994-12-27
1996-09-03
Ip, Paul
Electricity: motive power systems
Positional servo systems
Pulse-width modulated power input to motor
318603, 318601, 318567, G05F 1247
Patent
active
055526896
ABSTRACT:
A servo motor includes a motor, a motor driver for driving the motor by outputting pulses to the motor, and a speed detector for calculating speed information. The servo motor further includes a comparator for comparing the speed information with command speed information and calculating deviation information therebetween, a memory for storing pulse correction information for modifying a duty factor of the pulses in accordance with a rotational state of the motor, and a pulse updater for reading the pulse correction information stored in the memory based on the deviation information, modifying the duty factor of the pulses, and outputting the duty factor modified pulses to the motor driver.
REFERENCES:
patent: 4194144 (1980-03-01), Reynolds
patent: 4227150 (1980-10-01), Widl
patent: 4297009 (1981-10-01), Mezrich et al.
patent: 4339700 (1982-07-01), Desbiens et al.
patent: 4354146 (1982-10-01), Tenmyo et al.
patent: 4398137 (1983-08-01), Janicki et al.
patent: 4415844 (1983-11-01), Mendenhall et al.
patent: 4485337 (1984-11-01), Sandusky
patent: 4575667 (1986-03-01), Kurakake
patent: 4638225 (1987-01-01), Morinaga et al.
patent: 4748555 (1988-05-01), Miyake et al.
patent: 4777418 (1988-10-01), Furue
patent: 4897778 (1990-01-01), Miyamoto et al.
Ip Paul
Laurel Bank Machines Co. Ltd.
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