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Portable charger and method of operating the same

  • US 9,428,066 B2
  • Filed: 06/17/2013
  • Issued: 08/30/2016
  • Est. Priority Date: 06/28/2012
  • Status: Active Grant
First Claim
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1. A portable charger comprising:

  • a main body;

    a first connector connected to the main body and a commercial power source; and

    a second connector connected to the main body and an external apparatus,wherein the main body comprises;

    a power line formed between the first and second connectors to allow a commercial electric power to flow through the power line;

    a relay disposed on the power line to intermit the commercial electric power flowing through the power line;

    a data communication unit connected to the power line to perform data communication with the external apparatus connected to the second connector through the power line; and

    a switch disposed between the power line and the data communication unit to intermit the connection between the data communication unit and the power line,wherein the power line comprises;

    a first power line through which a positive first electric power flows; and

    a second power line through which a negative second electric power flows,the relay comprises;

    a first relay intermitting only the first electric power which flows through the first power line; and

    a second relay intermitting only the second electric power which flows through the second power line, andthe data communication unit comprises;

    a first data communication unit performing data communication through the first power line; and

    a second data communication unit performing data communication through the second power line,wherein the switch comprises;

    a first switch independently intermitting a connection between the first power line and the first data communication unit;

    a second switch independently intermitting a connection between the second power line and the second data communication unit; and

    a third switch intermitting a driving electric power supplied to the second data communication unit.

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