Method for improved ESD performance within power over ethernet devices
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United States of America Patent
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Issued Date -
Sep 28, 2006
app pub date -
Oct 26, 2005
filing date -
Mar 28, 2005
priority date (Note) -
Abandoned
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Abstract
Embodiments of the present invention provide an improved ESD protection circuit within a power over Ethernet (PoE) network device operable to handle a network signal that may include both power and data. This PoE network device includes a network connector, an integrated circuit (IC) and an ESD protection circuit. The network connector physically couples the PoE network device to the network. The IC couples to the ESD protection circuit, wherein the IC further includes a power feed circuit. This power feed circuit is operable to handle network signals containing both data signals and power signals. The ESD protection circuits shunts ESD events to an ESD capacitance and then dissipates the ESD event through a discharge path in order to reduce the energy associated with the ESD event and dissipated within the IC.
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