Monolithic supply-modulated RF power amplifier and DC-DC power converter IC

Embodiments of RF power amplifiers are disclosed that include switched-mode power amplifiers supplied by synchronous buck DC-DC converters. The switched-mode power amplifiers can be used to amplify a limited form of an RF input signal and the supply to the switched-mode power amplifier is varied in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Abedinpour, Siamak, Kiaei, Sayfe
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Embodiments of RF power amplifiers are disclosed that include switched-mode power amplifiers supplied by synchronous buck DC-DC converters. The switched-mode power amplifiers can be used to amplify a limited form of an RF input signal and the supply to the switched-mode power amplifier is varied in response to the envelope of the RF input signal. One embodiment includes a switched-mode power amplifier connected to a synchronous buck DC-DC converter.