NETWORK DEVICES FOR SEPARATING POWER AND DATA SIGNALS
First Claim
1. A network device comprising:
- a transformer with a primary winding and a secondary winding, wherein the primary winding is coupled to receive input signals from a network connector and supply data signals to a physical layer (PHY) module; and
an inductance boost circuit coupled to the secondary winding and operable to increase the impedance of the primary winding.
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Accused Products
Abstract
Embodiments disclosed herein provide a network device comprises a transformer with a primary winding and a secondary winding. The primary winding is coupled to receive input signals from a network connector and supply data signals to a physical layer (PHY) module. An inductance boost circuit is coupled to the secondary winding and operable to increase the impedance of the primary winding. In other embodiments, a network device comprises an autotransformer coupled to receive input signals from a network connector and supply data signals to a physical layer (PHY) module. An electronic load coupled in parallel between the autotransformer and the PHY layer module.
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Citations
28 Claims
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1. A network device comprising:
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a transformer with a primary winding and a secondary winding, wherein the primary winding is coupled to receive input signals from a network connector and supply data signals to a physical layer (PHY) module; and
an inductance boost circuit coupled to the secondary winding and operable to increase the impedance of the primary winding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A network device comprising:
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an autotransformer coupled to receive input signals from a network connector and supply data signals to a physical layer (PHY) module; and
an electronic load coupled in parallel between the autotransformer and the PHY layer module. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A method comprising:
coupling an inductance boost circuit coupled to a secondary winding of a transformer, wherein a primary winding of the transformer is operable to receive input signals from a network connector and supply data signals to a physical layer (PHY) module, and the inductance boost circuit is configured to stop functioning during an over-voltage event due to high currents saturation of the transformer. - View Dependent Claims (24, 25, 26, 27, 28)
Specification