Device for optimizing the speed control behavior of a subfractio

Details Device for optimizing the speed control behavior of a subfractio Device for optimizing the speed control behavior of a subfractio

1995-04-04

1997-05-20

Ip, Paul

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Field control, or field and armature control, by analog...

388811, 388901, 388903, H02P 500

Patent

active

056320000

ABSTRACT:
A device for the optimizing of the speed control of an electric subfractional horsepower motor for dental instruments is provided wherein it is possible to operate the motor in any desired speed range. The device contains a first module for regulating the speed by voltage measurement, a second module for regulating the speed by current-load compensation, and means for deciding which of the two modules and in what proportion they assume speed regulation of the motor.

REFERENCES:
patent: 3617844 (1971-11-01), Grygera
patent: 3688167 (1972-08-01), Ivey et al.
patent: 3716772 (1973-02-01), Larson
patent: 4152632 (1979-05-01), Peterson
patent: 4468603 (1984-08-01), Vander Meer et al.
patent: 4656403 (1987-04-01), Treffer
patent: 4866356 (1989-09-01), Altendorf
patent: 4891764 (1990-01-01), McIntosh
patent: 5350988 (1994-09-01), Le

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