Method and apparatus for the improved control of motors and of motor-actuated work apparatus
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United States of America Patent
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-
Nov 11, 2003
Issued Date -
N/A
app pub date -
Jan 18, 2002
filing date -
Apr 14, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is control circuitry for providing controlling a motor responsive to feedback signals. The control circuit includes a velocity sensor for coupling with the motor for providing a velocity feedback signal responsive to the velocity of the motor, and circuitry for providing a feedback signal responsive to a voltage associated with the motor, such as the back emf of a coil associated with the motor. The control circuitry can be used enhance the Z-axis control of a tool of a work apparatus for performing work operations on a work material, such as a cutting apparatus for cutting a sheet of vinyl having a releasable backing for generating graphic products.
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