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Apparatus for charging batteries of devices at a selected DC voltage

  • US 9,356,454 B2
  • Filed: 03/17/2014
  • Issued: 05/31/2016
  • Est. Priority Date: 03/17/2014
  • Status: Active Grant
First Claim
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1. A portable battery charger for a selectable charge receiving device comprising:

  • a housing having a first plug adapted to be inserted into a DC receptacle;

    a second plug adapted to be inserted into an AC receptacle; and

    at least one multiple voltage receptacle provided on the housing for charging the selectable charge receiving device and adapted to provide a default level of voltage and a predetermined level of voltage that is greater than the default level of voltage;

    wherein the housing encloses;

    a control circuit that communicates with the selectable charge receiving device that is adapted to be charged at a predetermined level of voltage that the device may be charged at and that provides a charging level signal;

    a voltage switching circuit that receives the charging level signal; and

    a variable output converter circuit controlled by the voltage switching circuit that is configured to provide a DC charging voltage to the selectable charge receiving device.

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