Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Running-speed control
Patent
1990-02-20
1991-01-08
Shoop, Jr., William M.
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Running-speed control
318696, 328811, 328814, H02F 768
Patent
active
049838911
ABSTRACT:
A motor driving apparatus for driving a motor with a constant voltage by a driving pulse having a predetermined pulse width when the motor is rotated at a high speed, and for chop-driving the motor by using a chopping clock when the motor is rotated at a low speed.
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patent: 4661757 (1987-04-01), Hokari et al.
patent: 4879498 (1989-11-01), Shinohara et al.
patent: 4904909 (1990-02-01), Zeeland et al.
Konica Corporation
Shoop Jr. William M.
Wysocki A. Jonathan
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