Noise improved linear DC motor control systems and methods
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United States of America Patent
Stats
-
Sep 4, 2007
Grant Date -
Jun 23, 2005
app pub date -
May 7, 2004
filing date -
May 9, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A linear power controller and related circuitry may be implemented to provide linear control of a variable DC electric motor. The controller and motor are coupled to form a closed loop for controlling the speed of the motor and for adjusting or compensating for noise and other characteristics having a negative impact on performance. The circuitry is configured to have a crossover frequency that is below the motor noise frequency. The configuration of the crossover frequency may allow for the motor or the controller to be implemented without additional circuitry to filter or compensate for motor noise.
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