Simple and minimally invasive methods and systems for sensing and computing load impedance
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United States of America Patent
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Nov 3, 2015
Grant Date -
Nov 22, 2012
app pub date -
Mar 21, 2012
filing date -
Mar 21, 2011
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Abstract
Systems and methods for direct load impedance computation for a two-port network are disclosed. For a two-port network connected between a first port and a second port, a method can include defining an equivalent PI network including a first equivalent network element in communication with the first port, a second equivalent network element in communication with the second port, and a third equivalent network element connected between the first port and the second port. A linear passive load can be connected to the second port of the two-port network, currents through the linear passive load, the second equivalent network element, and the third equivalent network element can be measured, and a load impedance of the linear passive load can be determined based on predetermined values of a voltage at the first port and a voltage at the second port.
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