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US Patent 9379667 Multiple power supply input parallel amplifier based envelope tracking

Patent 9379667 was granted and assigned to RF Micro Devices on June, 2016 by the United States Patent and Trademark Office.

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Is a

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Patent attributes

Patent Applicant

RF Micro Devices

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Current Assignee

RF Micro Devices

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Philippe Gorisse1

Michael R. Kay1

Nadim Khlat1

Date of Patent

June 28, 2016

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Patent Application Number

140722251

Date Filed

November 5, 2013

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Patent Citations Received

US Patent 12126305 Radio frequency (RF) equalizer in an envelope tracking (ET) circuit

2

US Patent 11764737 Envelope tracking circuit and related power amplifier apparatus

US Patent 11909385 Fast-switching power management circuit and related apparatus

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US Patent 11906992 Distributed power management circuit

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US Patent 12063018 Envelope tracking integrated circuit operable with multiple types of power amplifiers

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US Patent 12068720 Barely Doherty dual envelope tracking (BD2E) circuit

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US Patent 12081173 Complementary envelope detector

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US Patent 11716057 Envelope tracking circuitry

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Patent Primary Examiner

Patricia T Nguyen

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Patent abstract

A switch mode power supply converter and a parallel amplifier are disclosed. The switch mode power supply converter is coupled to a modulated power supply output and the parallel amplifier has a parallel amplifier output coupled to the modulated power supply output. Further, the parallel amplifier has a group of output stages, such that each output stage is directly coupled to the parallel amplifier output and each output stage receives a separate supply voltage.

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