Apparatus and methods for envelope tracking

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United States of America Patent

PATENT NO 8718188
SERIAL NO

13452620

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Abstract

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Apparatus and methods for envelope tracking are disclosed. In one embodiment, a power amplifier system including a power amplifier and an envelope tracker is provided. The power amplifier is configured to amplify a radio frequency (RF) signal, and the envelope tracker is configured to control a supply voltage of the power amplifier using an envelope of the RF signal. The envelope tracker includes a buck converter for generating a buck voltage from a battery voltage and a digital-to-analog conversion (DAC) module for adjusting the buck voltage based on the envelope of the RF signal to generate the supply voltage for the power amplifier.

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Patent Owner(s)

  • SKYWORKS SOLUTIONS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Balteanu, Florinel G Ottawa, CA 120 3799
Khesbak, Sabah Irvine, US 59 2363
Ripley, David Steven Marion, US 119 2650
Thompson, Robert John Cedar Rapids, US 17 805
Tkachenko, Yevgeniy A Belmont, US 28 877

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