Power over Ethernet electrostatic discharge protection circuit
First Claim
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1. A Power over Ethernet (PoE) electrostatic discharge (ESD) protection circuit, comprising:
- a first diode having an anode configured to be coupled to a positive power port of a Power over Ethernet (PoE) power supply and a cathode coupled to an ESD protection port;
a second diode having an anode coupled to ground and a cathode configured to be coupled to said positive power port; and
a third diode having an anode configured to be coupled to a negative power port of the Power over Ethernet (PoE) power supply and a cathode coupled to said ESD protection port, wherein said ESD protection port is configured to connect to an ESD discharge path, and wherein the negative power port is associated with the positive power port of the Power over Ethernet (PoE) power supply.
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Abstract
A Power over Ethernet electrostatic discharge protection circuit has a first diode with an anode coupled to a positive power port and a cathode coupled to an ESD protection port. A second diode has an anode coupled to ground and a cathode coupled to the positive power port. A third diode has an anode coupled to a negative power port and a cathode coupled to the ESD protection port.
37 Citations
12 Claims
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1. A Power over Ethernet (PoE) electrostatic discharge (ESD) protection circuit, comprising:
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a first diode having an anode configured to be coupled to a positive power port of a Power over Ethernet (PoE) power supply and a cathode coupled to an ESD protection port; a second diode having an anode coupled to ground and a cathode configured to be coupled to said positive power port; and a third diode having an anode configured to be coupled to a negative power port of the Power over Ethernet (PoE) power supply and a cathode coupled to said ESD protection port, wherein said ESD protection port is configured to connect to an ESD discharge path, and wherein the negative power port is associated with the positive power port of the Power over Ethernet (PoE) power supply. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification