Method for dynamic insertion loss control for 10/100/1000 MHz Ethernet signaling
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United States of America Patent
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Dec 23, 2008
Grant Date -
Oct 26, 2006
app pub date -
Aug 19, 2005
filing date -
Mar 28, 2005
priority date (Note) -
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Abstract
Dynamic insertion insertion loss for an ethernet power on differential cable pairs is shown in a power feed circuit that supplies power to a network attached device (PD). An insertion loss control circuit limits power loss in a coupled power feed circuit. determines an insertion loss limit, and senses an average power of the power signals to produce a common mode feedback signal to the power feed circuit.
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