System and method to detect power distribution fault conditions and distribute power to a network attached power device
First Claim
1. Power feed circuitry of a power source equipment (PSE) network device operable to detect fault conditions within power and data distribution lines coupled to the power feed circuitry, comprising:
- network interface circuitry communicatively coupled to the network to exchange both data and power signals;
power interface circuitry communicatively coupled to;
at least one isolated power supply in order to draw power; and
the network interface circuitry in order to supply a network power signal to an attached network device;
a fault detection module coupled to the power interface circuitry and network interface circuitry, wherein the fault detection module is operable to sense a fault condition associated with the power interface circuitry, network interface circuitry, and associated distribution lines.
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Accused Products
Abstract
Power feed circuitry within a power over Ethernet (PoE) device detects fault conditions within power and data distribution lines coupled to the power feed circuitry. This circuitry includes network interface circuitry coupled to the network in order to exchange both data and power signals. The power interface circuitry also communicatively couples to at least one isolated power supply in order to draw power. The power may then be distributed via the attached network interface circuitry. A fault detection module couples to the power interface circuitry and the network interface circuitry. This fault detection module senses fault conditions associated with the power interface circuitry, network interface circuitry, and associated distribution lines in order to better draw and distribute power signals using the power feed circuitry.
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Citations
31 Claims
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1. Power feed circuitry of a power source equipment (PSE) network device operable to detect fault conditions within power and data distribution lines coupled to the power feed circuitry, comprising:
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network interface circuitry communicatively coupled to the network to exchange both data and power signals;
power interface circuitry communicatively coupled to;
at least one isolated power supply in order to draw power; and
the network interface circuitry in order to supply a network power signal to an attached network device;
a fault detection module coupled to the power interface circuitry and network interface circuitry, wherein the fault detection module is operable to sense a fault condition associated with the power interface circuitry, network interface circuitry, and associated distribution lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method to supply power from a power source equipment (PSE) network device with an Ethernet power signal fed through an Ethernet network connection, comprising:
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physically coupling the PSE network device to at least one isolated power supply, wherein an integrated circuit (IC) within the PSE network device draws a first plurality of power signals from the at least one isolated power supply;
sensing a current associated with each power signal of the first plurality of power signals;
detecting a fault condition based on the sensed current;
drawing each power signal of the first plurality of power signals based on the sensed fault condition;
physically coupling the PSE network device to an Ethernet network;
combining with the IC, an Ethernet data signal and an Ethernet power signal to produce an Ethernet signal; and
exchanging the Ethernet signal with at least one Ethernet network power device (PD) physically coupled to the Ethernet network within the PSE network device. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A power source equipment (PSE) network device operable to distribute both an Ethernet power signal and an Ethernet data signal through a coupled Ethernet network, comprising:
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an Ethernet network connector operable to physically couple the PSE network device to the Ethernet network;
a PSE controller; and
an Ethernet physical layer (PHY) module operable to interface the PSE network device to a multiport switch; and
an integrated circuit (IC) coupled to the Ethernet network connector that further comprises power feed circuitry, wherein the power feed circuitry comprises;
power interface circuitry communicatively coupled to;
at least one isolated power supply in order to draw power; and
network interface circuitry in order to supply a Ethernet power signal to the Ethernet network connector;
a fault detection module coupled to the power interface circuitry and network interface circuitry, wherein the fault detection module is operable to;
sense a fault condition associated with the power interface circuitry, network interface circuitry, and associated distribution lines;
balance power signals based on the sensed fault condition. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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Specification