Drive system for a motor

Details Drive system for a motor Drive system for a motor

1980-05-13

1981-12-22

Smith, Jr., David

Electricity: motive power systems

Synchronous motor systems

Brushless motor closed-loop control

318139, 318342, 318500, H02P 728

Patent

active

043073263

ABSTRACT:
Disclosed is a drive system for a motor, wherein a current proportional to a change of a load of a motor is sensed by a sensing resistor. A voltage produced across the sensing resistor controls an electronic switch in a manner that the output DC voltage of a DC - DC converter is used for a motor drive power source at a normal load and yet a DC power source with a higher voltage than the output DC voltage of the DC - DC converter is used therefor at an increased load.

REFERENCES:
patent: 3383578 (1968-05-01), Lewis
patent: 3641422 (1972-02-01), Farnsworth et al.
patent: 3662245 (1972-05-01), Newell
patent: 3753138 (1973-08-01), Svendsen
patent: 3757193 (1973-09-01), Inaba et al.
patent: 3873901 (1975-03-01), Berry et al.
patent: 4182979 (1980-01-01), Douglas et al.

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