Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Running-speed control
Patent
1989-02-03
1991-12-31
Shoop, Jr., William M.
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Running-speed control
318 67, 388815, 606 1, H02P 550
Patent
active
050775065
ABSTRACT:
An apparatus for controlling the speed of a plurality of DC motors, comprises a device for supplying voltage to one of the plurality of DC motors, first selector for selecting one of the DC motors to be connected to the device for supplying voltage, second selector for selecting a desired speed for the selected DC motor, a device for producing a feedback signal representative of an electrical current drawn by the selected DC motor and a controller for: (i) producing a reference voltage in response to the first and second selectors (ii) producing a load voltage in response to the feedback signal and (iii) outputting a control signal which is the sum of the reference voltage and the load voltage to the device for supplying voltage so that the selected DC motor is operated at the desired speed.
REFERENCES:
patent: 4055786 (1977-10-01), DiMarzio
patent: 4388582 (1983-06-01), Saar et al.
patent: 4634942 (1987-01-01), Naroto
patent: 4641069 (1987-02-01), Fujioka
patent: 4644232 (1987-02-01), Nojiri et al.
patent: 4689541 (1987-08-01), Jones et al.
patent: 4705038 (1987-11-01), Sjostrom et al.
patent: 4827195 (1989-05-01), Newell et al.
Dyonics, Inc.
Martin David
Shoop Jr. William M.
LandOfFree
Microprocessor controlled arthroscopic surgical system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Microprocessor controlled arthroscopic surgical system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microprocessor controlled arthroscopic surgical system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1512620