High resolution position sensor circuit
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United States of America Patent
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-
Apr 30, 1991
Grant Date -
N/A
app pub date -
Aug 21, 1989
filing date -
Aug 21, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A resolution enhancement circuit comprises a voltage divider used to add multiples of two position representing quadrature signals into a plurality of adder output signals having zero crossings during the cycle of the quadrature signals, a digitizer creating a plurality digital signals based on the individual adder output signals and an output logic circuit combining the digital signals into a new pair of digital quadrature signals of increased resolution. The circuit provides information for more precise control of die casting machines and the like.
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