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Switching power supply

  • US 8,285,229 B2
  • Filed: 01/10/2012
  • Issued: 10/09/2012
  • Est. Priority Date: 11/09/2006
  • Status: Active Grant
First Claim
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1. A method comprising:

  • determining power efficiency characteristics of an amplifier for a selected modulation scheme to be employed in data transmission;

    controlling an output stage power supply of the amplifier to operate at a first voltage, wherein the amplifier provides a first output current with a first power efficiency higher than a predetermined value at the first voltage; and

    adjusting the output stage power supply of the amplifier to operate at a second voltage when the first power efficiency falls below the predetermined value, wherein the amplifier provides a second output current with a second power efficiency higher than the predetermined value at the second voltage.

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