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Charging apparatus with dynamical charging power and method of operating the same

  • US 9,457,672 B2
  • Filed: 07/31/2014
  • Issued: 10/04/2016
  • Est. Priority Date: 01/21/2014
  • Status: Active Grant
First Claim
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1. A charging apparatus with dynamical charging power configured to charge an electric vehicle, the charging apparatus comprising:

  • a main power conversion unit configured to receive an AC power and convert the AC power into a main output power;

    a main switch unit connected to an output side of the main power conversion unit;

    an auxiliary power conversion unit configured to receive an auxiliary DC power and convert the auxiliary DC power into an auxiliary output power;

    an auxiliary switch unit connected between an input side of the auxiliary power conversion unit and the output side of the main power conversion unit; and

    a control unit configured to control maximum output power of the main output power to be an upper-limit output power value,whereinthe control unit is configured to dynamically control the auxiliary output power according to a power difference value between a charging power value and the upper-limit output power value when the charging power value of charging the electric vehicle is greater than the upper-limit output power value, andthe main output power is DC power and the auxiliary output power is DC power.

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