CURRENT SENSING ON A MOSFET

  • US 20120007613A1
  • Filed: 09/21/2011
  • Published: 01/12/2012
  • Est. Priority Date: 12/05/2007
  • Status: Active Grant
First Claim
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1. A device comprising:

  • a switch;

    wherein a voltage is applied across said switch;

    a current sensing circuit connected to one terminal of said switch;

    wherein said current sensing circuit which receives power independently of said voltage;

    wherein said power shares the other terminal of said switch with said current sensing circuit;

    wherein said switch is adapted for opening and closing so that when said switch is closed, said current sensing circuit is configured to sense current through said switch and when said switch is open, voltage of said switch is blocked from said current sensing circuit.

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