System for powering and controlling a device associated with...

Details System for powering and controlling a device associated with... System for powering and controlling a device associated with...

2005-02-08

2005-02-08

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Method of operation

C415S118000, C318S811000

Reexamination Certificate

active

06851929

ABSTRACT:
A system for providing power and communication signals to a device associated with a rotating component on an aircraft includes a communication strategy that allows power and command signals to be propagated along the same conductors. A stationary controller provides power and command signals to a controller that is supported for rotation with the rotating device. Only two slip rings are required to communicate power and command signals between the stationary and rotating controllers. Synchronous modulation preferably is used for sending the command signals to avoid interference from noise inherent in slip ring electrical couplings. A multi-zone propeller deicing heater is one example device that is controllable using the inventive approach.

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patent: 6054947 (2000-04-01), Kosowsky
patent: 6094989 (2000-08-01), Twerdochlib
patent: 6145787 (2000-11-01), Rolls
patent: 6340847 (2002-01-01), Kawabata et al.

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