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Self-contained automatic battery charging systems and methods

  • US 9,466,995 B2
  • Filed: 11/07/2014
  • Issued: 10/11/2016
  • Est. Priority Date: 11/07/2013
  • Status: Active Grant
First Claim
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1. A self-contained automatic battery charging system comprising:

  • a power printed circuit board (PCB) comprising;

    input connections to allow an alternating current (AC) power to flow into the self-contained automatic battery charging system;

    a first switchmode converter configured to convert the AC power into a direct current (DC) power and the first switchmode converter configured to provide active power factor correction so as to provide an improved power factor, the first switchmode converter comprising a high frequency isolation transformer to provide an electrical isolation between a primary circuitry and a secondary circuitry of the self-contained automatic battery charging system;

    a second switchmode converter connected to a DC output from the first switchmode converter and that is configured to regulate an output voltage and limit an output current of the self-contained automatic battery charging system; and

    output connections configured for wiring the DC output to an electrical load.

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