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Combiner for power delivery over data communication cabling infrastructure

  • US 7,325,150 B2
  • Filed: 03/29/2005
  • Issued: 01/29/2008
  • Est. Priority Date: 01/12/1999
  • Status: Expired due to Fees
First Claim
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1. A power data combiner comprising:

  • a line interface circuitry configured to receive a plurality of data communications signals and an electrical power signal, said line interface circuitry further configured to output a plurality of combined power/data signals substantially without interfering with data communications; and

    a current limiting and sense circuitry connected to the line interface circuitry and configured to;

    limit one of current and power delivered by said line interface circuitry into each of said plurality of combined power/data signals to a maximum level; and

    provide a minimum current threshold reference level for each of said plurality of combined power/data signals.

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