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Sourcing power from a battery or AC-DC converter of a power storage adapter

  • US 10,381,844 B2
  • Filed: 06/23/2017
  • Issued: 08/13/2019
  • Est. Priority Date: 06/23/2017
  • Status: Active Grant
First Claim
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1. A power storage adapter (PSA), comprising:

  • a port for coupling the power storage adapter to a variable power bus;

    a battery;

    an AC-DC converter;

    power distribution circuitry to supply electrical power from the power storage adapter at a plurality of output voltage levels; and

    a PSA controller, wherein the PSA controller comprises circuitry to;

    when the AC-DC converter is coupled to AC line power and a power consuming device is coupled to the power storage adapter over the variable power bus through the port, and responsive to a request for the power storage adapter to supply electrical power to the power consuming device at a particular voltage;

    determine, based on an operating parameter of the power storage adapter, one of an output of the AC-DC converter or an output of the battery as a selected source for supplying electrical power to the power consuming device; and

    cause the power distribution circuitry to supply electrical power from the selected source to the power consuming device over the variable power bus at the particular voltage;

    wherein the particular voltage is one of the plurality of output voltage levels.

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