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Battery charger and method of charging a battery

  • US 7,411,371 B2
  • Filed: 08/29/2005
  • Issued: 08/12/2008
  • Est. Priority Date: 02/28/2003
  • Status: Expired due to Fees
First Claim
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1. A battery charger comprising:

  • a direct current (DC) power supply;

    a variable alternating-current power supply configured to receive direct current from said DC power supply and output a first alternating current of a controllable power level superimposed upon at least one of a higher frequency switched frequency and a higher frequency carrier frequency; and

    a controller configured to control said variable alternating-current power supply, said controller including control of at least said power level of said first alternating current.

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