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Dual-charger system

  • US RE45,208 E1
  • Filed: 02/14/2013
  • Issued: 10/28/2014
  • Est. Priority Date: 08/16/2010
  • Status: Active Grant
First Claim
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1. A dual-charger system for use in charging a battery within a vehicle using energy provided from an AC source outside of the vehicle, the system comprising:

  • a first charger being operably connected to the AC source, the first charger being operable to charge the battery with a first DC voltage and a first DC current; and

    a second charger being operably connected to the AC source and in parallel with the first charger, the second charger being operable to charge the battery with a second DC voltage and a second DC current;

    wherein the chargers are in a connection arrangement such that the chargers appear to a vehicle controller as being a single charger;

    wherein the first charger is further operable to vary the first DC voltage as a function of a difference between a net voltage set by a combination of the first and second DC voltages and a charging voltage desired for charging the battery.

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