Adjustable brush ac/dc servo motor

Details Adjustable brush ac/dc servo motor Adjustable brush ac/dc servo motor

1990-10-19

1992-11-03

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310220, H02K 1310, H02K 2318

Patent

active

051608685

ABSTRACT:
An adjustable-brush motor incorporates an integral stepping motor or servo to electromechanically adjust the commutating angle of the primary brushes by input of an electrical signal, and to maintain a predetermined commutating angle in the absence of an electrical signal. The adjustment is in accordance with load changes to reduce sparking, to upgrade the electromechanical conversion efficiency of the motor, and to reverse the direction of rotation.

REFERENCES:
patent: 2414523 (1947-01-01), Harding et al.
patent: 4308400 (1981-12-01), Moody
patent: 4959578 (1990-09-01), Varga

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