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Power source device

  • US 10,461,553 B2
  • Filed: 03/16/2015
  • Issued: 10/29/2019
  • Est. Priority Date: 04/23/2014
  • Status: Active Grant
First Claim
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1. A power source device, comprising:

  • an insulated AC-DC converter configured to receive an AC voltage and output a DC link voltage to a bidirectional DC-DC converter; and

    the bidirectional DC-DC converter, which is configured to;

    receive the link voltage from a first direction, and use the link voltage to charge a battery;

    receive power from the battery; and

    selectively output the link voltage in a second direction opposite to the first direction,wherein the bidirectional DC-DC converter is configured to output the link voltage having a constant first value when a voltage of the battery is at or below a threshold, and to output the link voltage having a second value higher than the first value when a voltage of the battery is above the threshold.

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