Potentiometer diagnosis
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United States of America Patent
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May 18, 2010
Grant Date -
Jun 29, 2006
app pub date -
Jan 12, 2006
filing date -
Jul 12, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A diagnostic circuit for a potentiometer that connects a load resistor (laboratory resistor) to the slider of the potentiometer to allow a constant comparison of the contact resistance to measured values in the loaded and/or unloaded state when the slider is being adjusted, or when it is being paused at a critical point. This is accomplished by connecting a pull-up resistor to an input of the microprocessor, to which a load resistor is connected, and which is electrically connected to the slider. The slider itself is connected to an additional input of the microprocessor.
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