A.C. motor control

Electricity: motive power systems – Positional servo systems – Frequency- or phase-modulated systems

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Details

318603, G05B 102

Patent

active

052724255

ABSTRACT:
A low cost control system for precise positioning employs an a.c. motor and a variable frequency power source for the motor. When the desired position is approached, the frequency of the source is decreased to a low constant value, and the motor is stopped in timed relation to the leading edge of a feedback signal from a position responsive feedback sensor.

REFERENCES:
patent: 3562619 (1967-12-01), Hyoguchi
patent: 3854353 (1974-12-01), Cutler
patent: 3906324 (1975-09-01), Smith
patent: 4060753 (1977-11-01), Okuyama et al.
patent: 4099109 (1978-07-01), Abbondanti
patent: 4206485 (1980-06-01), Sakamoto
patent: 4357569 (1982-11-01), Iwakano et al.
patent: 4358722 (1982-11-01), Iwakano et al.
patent: 4547692 (1985-10-01), Spaulding
patent: 4710865 (1987-12-01), Higomura
patent: 4741210 (1988-05-01), Maus
patent: 4816728 (1989-03-01), Kurakake
patent: 4891568 (1990-01-01), Shibata et al.
patent: 4894594 (1990-01-01), Kawamura et al.
patent: 4897583 (1990-01-01), Rees
patent: 5013989 (1991-05-01), Kurakake et al.
patent: 5053688 (1991-10-01), Rees

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