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Variable DC link converter and transformer for wide output voltage range applications

  • US 10,454,381 B2
  • Filed: 09/01/2017
  • Issued: 10/22/2019
  • Est. Priority Date: 09/15/2016
  • Status: Active Grant
First Claim
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1. A power converter, comprising:

  • a first converter stage configured to convert power from a power source to power at an intermediate link voltage;

    a second converter stage configured to convert the power at the intermediate link voltage to power for charging a battery; and

    a control system comprising;

    an intermediate link voltage regulation control loop configured, in a first mode of operation, to regulate the intermediate link voltage through the first converter stage based on a voltage of the battery; and

    a ripple regulation control loop configured to sense a charging current for the battery and regulate a gain of the second converter stage based on the charging current to reduce ripple in the charging current.

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