Motor control device for controlling motor speed depending on im

Details Motor control device for controlling motor speed depending on im Motor control device for controlling motor speed depending on im

1992-06-08

1994-05-31

Shoop, Jr., William M.

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

388815, 388902, 388904, 3889075, 4001442, H02P 517

Patent

active

053176685

ABSTRACT:
For operating a plurality of mechanisms with a single motor, a motor control device is provided which is capable of stably operating one of the mechanisms while reducing influence of load imparted on the motor and attributed by an operation of remaining one of the mechanisms. A CPU suitably controls or selects electrical current level provisionally ranked and stored in a ROM to a printing motor which drives a print hammer for obtaining predetermined velocity of the hammer. If the print hammer reaches its decelerating position, the CPU determines offset electrical current level and current applying period to be applied to the printing motor on a basis of the rank of the electrical current at that phase.

REFERENCES:
patent: 4270868 (1981-06-01), Morgan et al.
patent: 4486693 (1984-12-01), Hamati et al.
patent: 4523137 (1985-06-01), Wong
patent: 4689528 (1987-07-01), Watanabe
patent: 4802777 (1989-02-01), Yamada
patent: 5089761 (1992-02-01), Nakazawa
patent: 5220266 (1993-06-01), Kobayashi

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