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Dual input AC and DC power supply having a programmable DC output utilizing a secondary buck converter

DC
  • US 6,700,808 B2
  • Filed: 02/08/2002
  • Issued: 03/02/2004
  • Est. Priority Date: 02/08/2002
  • Status: Expired due to Fees
First Claim
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1. A power converter, comprising:

  • a first circuit converting an AC input voltage to a first predetermined DC output voltage;

    a second circuit converting a DC input voltage to a second predetermined DC output voltage;

    a third circuit receiving said first and second predetermined DC voltages and, in response thereto, providing a selectable DC output voltage at a first output, wherein said selectable DC output voltage is established as a function a removable program module; and

    a fourth circuit coupled to said first output and providing a second DC output voltage at a second output, whereby said second DC voltage output is independent of, and substantially lower than said selectable DC output voltage.

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