Servomotor controller

Details Servomotor controller Servomotor controller

1984-12-14

1986-07-08

Shoop, Jr., William M.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318326, 318327, 318341, 318599, 318329, G05B 500

Patent

active

045995451

ABSTRACT:
A servomotor controller of a Phase Locked Loop type, in which a phase control circuit and speed control circuit are composed of digital circuits, makes it possible to set a speed of the servomotor and to change the speed with ease and accuracy. The controller also makes it possible to reduce the assembling time with smaller number of parts and high reliability is obtained when the controller is used in various apparatus since the controller can be composed of a one chip integrated circuit. One can choose freely either quick start mode, which makes the speed increase quickly up to the set speed, or soft start mode, which makes the speed increase slowly.

REFERENCES:
patent: 3215918 (1965-11-01), Lichowsky
patent: 3621353 (1971-11-01), Matley
patent: 4023085 (1977-05-01), Bishop et al.
patent: 4061950 (1977-12-01), Kayanuma
patent: 4072884 (1978-02-01), Treadwell
patent: 4086521 (1978-04-01), Buhler et al.
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patent: 4243921 (1981-01-01), Tamura et al.
patent: 4271382 (1981-06-01), Maeda et al.
patent: 4354146 (1982-10-01), Tenmyo et al.
patent: 4441061 (1984-04-01), Yoshida et al.
patent: 4500822 (1985-02-01), Tajima et al.
patent: 4506202 (1985-03-01), Tajima et al.

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