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Smart junction box for a photovoltaic system

  • US 9,105,765 B2
  • Filed: 12/12/2013
  • Issued: 08/11/2015
  • Est. Priority Date: 12/18/2012
  • Status: Active Grant
First Claim
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1. An apparatus for a smart junction box comprising:

  • a first set of switches connected across input terminals adapted for connection to output terminals of a plurality of photovoltatic (PV) modules;

    a plurality of diodes connected across input terminals of each respective switch in the first set of switches;

    at least one reverse current detection device on at least one output terminal of the smart junction box;

    a second set of switches to selectively disconnect and short circuit output terminals of the smart junction box when a reverse current is detected, and wherein at least one switch of the second set of switches is located across the output terminals; and

    a controller controlling the first and second set of switches.

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