Phase reference generator with driving point voltage estimator
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United States of America Patent
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N/A
Issued Date -
Apr 19, 2007
app pub date -
Sep 8, 2006
filing date -
Oct 17, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A phase reference generator for use in a resistance weld control. The phase reference generator including a digital signal processor having a digital volt-time area generator to generate a volt-time area of an observed voltage; a digital current-time area and current-difference-time area generator to generate a current-time area of an observed current and a current-difference-time area of the observed current; a line impedance estimator; and, a driving point voltage area estimator configured to receive values from the digital volt-time area generator, the digital current-time area generator and current-difference-time area generator, and the line impedance estimator and generate estimates of the driving point voltage.
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