ACTUATOR WITH ZERO POINT INITIALIZATION
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United States of America Patent
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N/A
Issued Date -
Oct 22, 2009
app pub date -
Apr 16, 2008
filing date -
Apr 16, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The actuator has a shaft having a starting point resistance feature, and a low resistance portion. The actuator has a motor configured to rotate the shaft, the motor outputting a current feedback signal to indicate current exiting the motor. The actuator has a interference portion in proximity to the shaft, the interference portion configured to facilitate a resistance to shaft rotation when the shaft rotates, the resistance to shaft rotation causing a magnitude of the current signal to be greater when the starting point resistance feature passes in front of the interference portion than when the low resistance portion passes in front of the interference portion.
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