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Intelligent auxiliary power supply system with current and temperature monitoring capabilities

  • US 7,720,576 B2
  • Filed: 11/21/2007
  • Issued: 05/18/2010
  • Est. Priority Date: 11/21/2007
  • Status: Active Grant
First Claim
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1. An auxiliary power supply system comprising:

  • at least one external sensor;

    an uninterruptible power supply (UPS) apparatus comprising a switch coupled between a first and second power source, said switch connecting either of said first or second power source to at least one load;

    a controller coupled to said at least one external sensor, said switch, and said at least one load, said first and second power source coupled to said switch before said controller;

    wherein said switch includes at least one sensor to monitor a voltage level of both of said first and second power sources; and

    wherein said switch connects either of said first or second power sources to said at least one load in response to both a signal from said controller dependent on a condition of said at least one external sensor and said monitored voltage level.

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