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Power supply

  • US 7,262,581 B2
  • Filed: 05/07/2002
  • Issued: 08/28/2007
  • Est. Priority Date: 05/05/2001
  • Status: Expired due to Fees
First Claim
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1. A rechargeable power supply comprising:

  • at least one rechargeable cell connectable to a power source having a power rail;

    voltage protection means connected across the at least one rechargeable cell in a reverse biased direction, the voltage protection means allowing leakage current to flow through the voltage protection means in a reverse direction; and

    voltage dependent disconnecting means operable to disconnect said voltage protection means from said at least one rechargeable cell when voltage on the power rail is switched off to reduce discharge of said at least one rechargeable cell by the leakage current through said voltage protection means.

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