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Multilevel power amplifier architecture using multi-tap transformer

  • US 20060091958A1
  • Filed: 10/28/2004
  • Published: 05/04/2006
  • Est. Priority Date: 10/28/2004
  • Status: Active Grant
First Claim
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1. A power amplifier system, comprising:

  • a plurality of power amplifiers comprising a first power amplifier and a second power amplifier, where each power amplifier receives an input signal and generates an output signal;

    a multi-tap transformer comprising a secondary winding and a primary winding formed in an integrated circuit, where the primary winding is operably coupled to a shared load impedance, and where the secondary winding comprises a plurality of input taps, where each tap is operably coupled to receive an output signal from one of the plurality of power amplifiers.

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