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Electrical circuit for isolated voltage conversion

  • US 10,263,526 B2
  • Filed: 08/02/2017
  • Issued: 04/16/2019
  • Est. Priority Date: 08/02/2016
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a boost circuit configured to;

    receive a direct current (DC) signal at a first DC voltage; and

    generate an intermediate alternating current (AC) signal at a first AC voltage based on the DC signal at the first DC voltage;

    a capacitive circuit electrically coupled to the boost circuit and configured to;

    receive the intermediate AC signal at the first AC voltage; and

    generate an isolated AC signal at the first AC voltage based on the intermediate AC signal at the first AC voltage;

    a converter circuit electrically coupled to the capacitive circuit and configured to;

    receive the isolated AC signal at the first AC voltage;

    generate a first isolated DC signal at a second DC voltage based on the isolated AC signal at the first AC voltage; and

    generate a second isolated DC signal at a third DC voltage based on the first isolated DC signal at the second DC voltage, wherein the third DC voltage is less than the second DC voltage; and

    a current determination/regulator circuit electrically coupled to the converter circuit and configured to;

    receive the second isolated DC signal at the third DC voltage;

    generate an isolated power DC signal at a fourth DC voltage based on the second isolated DC signal;

    determine a current of the isolated power DC signal; and

    generate an isolated control signal based on the determined current of the isolated power DC signal, wherein the boost circuit is further configured to adjust the intermediate AC signal based on the isolated control signal.

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