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Systems and methods for battery charging and management

  • US 10,033,204 B2
  • Filed: 09/02/2015
  • Issued: 07/24/2018
  • Est. Priority Date: 09/03/2014
  • Status: Active Grant
First Claim
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1. A charging device for charging a mobile electronic device, the charging device comprising:

  • a supplemental battery;

    an input interface configured to receive electrical power from an external power source that is configured to output electrical power within a first voltage range;

    an output interface configured to output electrical power to the mobile electronic device that is configured to receive electrical power within the first voltage range;

    a controller;

    a charging electrical pathway from the input interface to the supplemental battery, wherein the controller is configured to direct electricity from the input interface, along the charging electrical pathway, to the supplemental battery to charge the supplemental battery;

    a discharge electrical pathway from the supplemental battery to the output interface, wherein the controller is configured to direct electricity from the supplemental battery, along the discharge electrical pathway, to the output interface to charge the mobile electronic device in a first charging mode;

    a bypass electrical pathway from the input interface to the output interface, wherein the controller is configured to direct electricity from the input interface, along the bypass electrical pathway, to the output interface to charge the mobile electronic device in a second charging mode;

    a first voltage modifier on the charging electrical pathway between the input interface and the supplemental battery, wherein the first voltage modifier is configured to reduce voltage that is supplied to the supplemental battery from the input interface; and

    a second voltage modifier on both the discharge electrical pathway and the bypass electrical pathway, wherein the second voltage modifier is configured to increase voltage supplied from the supplemental battery to the output interface along the discharge electrical pathway in the first charging mode, and to increase voltage supplied from the input interface to the output interface along the bypass electrical pathway in the second charging mode to at least compensate for a voltage drop caused by the charging device;

    wherein the controller is configured to activate one or more switches to selectively direct electricity along one or more of the charging electrical pathway, the discharge electrical pathway, and the bypass electrical pathway.

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