WO2008117399A1 - Amplifier circuit - Google Patents

Amplifier circuit Download PDF

Info

Publication number
WO2008117399A1
WO2008117399A1 PCT/JP2007/056248 JP2007056248W WO2008117399A1 WO 2008117399 A1 WO2008117399 A1 WO 2008117399A1 JP 2007056248 W JP2007056248 W JP 2007056248W WO 2008117399 A1 WO2008117399 A1 WO 2008117399A1
Authority
WO
WIPO (PCT)
Prior art keywords
power control
transmission power
amplifiers
operate
caused
Prior art date
Application number
PCT/JP2007/056248
Other languages
French (fr)
Japanese (ja)
Inventor
Takashi Izumi
Takashi Enoki
Original Assignee
Panasonic Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Corporation filed Critical Panasonic Corporation
Priority to PCT/JP2007/056248 priority Critical patent/WO2008117399A1/en
Publication of WO2008117399A1 publication Critical patent/WO2008117399A1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

An amplifier circuit wherein the memory amount required for holding correction values used in distortion compensation is relatively small and a transmission power control having a wide dynamic range can be performed with high efficiency of power. In this amplifier circuit (100), when a transmission power control value is equal to or greater than a predetermined threshold value, amplifiers (107a,107b) are caused to operate in a saturation range, and the phase difference between two constant envelope signals (S1,S2) or the power supply voltages of the amplifiers (107a,107b) are controlled, thereby performing a transmission power control, while activating a distortion compensating function. When the transmission power control value is less than the threshold value, the amplifiers (107a,107b) are caused to operate in an unsaturation range, and the gains of variable gain parts (106a,106b) are controlled, thereby performing a transmission power control, while halting the distortion compensating function. Therefore, the amplifiers (107a,107b) can be caused to operate with a high efficiency, and a transmission power control having a wide dynamic range can be performed as well as the memory amount required for holding the correction values used in the distortion compensation can be reduced.
PCT/JP2007/056248 2007-03-26 2007-03-26 Amplifier circuit WO2008117399A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056248 WO2008117399A1 (en) 2007-03-26 2007-03-26 Amplifier circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/056248 WO2008117399A1 (en) 2007-03-26 2007-03-26 Amplifier circuit

Publications (1)

Publication Number Publication Date
WO2008117399A1 true WO2008117399A1 (en) 2008-10-02

Family

ID=39788142

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/056248 WO2008117399A1 (en) 2007-03-26 2007-03-26 Amplifier circuit

Country Status (1)

Country Link
WO (1) WO2008117399A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010053134A1 (en) * 2008-11-05 2010-05-14 京セラ株式会社 Adder, and power combiner, quadrature modulator, quadrature demodulator, power amplifier, transmitter and wireless communicator using same
JP2012531095A (en) * 2009-06-18 2012-12-06 アルカテル−ルーセント High efficiency transmitter for wireless communication
JP2015533065A (en) * 2012-10-30 2015-11-16 イーティーエー デバイシズ， インコーポレイテッド Transmitter architecture and related methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003298361A (en) * 2002-03-29 2003-10-17 Shimada Phys & Chem Ind Co Ltd Power amplification method and power amplifier
JP2006314087A (en) * 2005-04-08 2006-11-16 Matsushita Electric Ind Co Ltd Amplifier circuit and radio equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003298361A (en) * 2002-03-29 2003-10-17 Shimada Phys & Chem Ind Co Ltd Power amplification method and power amplifier
JP2006314087A (en) * 2005-04-08 2006-11-16 Matsushita Electric Ind Co Ltd Amplifier circuit and radio equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010053134A1 (en) * 2008-11-05 2010-05-14 京セラ株式会社 Adder, and power combiner, quadrature modulator, quadrature demodulator, power amplifier, transmitter and wireless communicator using same
US8396435B2 (en) 2008-11-05 2013-03-12 Kyocera Corporation Adder, and power combiner, quadrature modulator, quadrature demodulator, power amplifier, transmitter and wireless communicator using same
JP2012531095A (en) * 2009-06-18 2012-12-06 アルカテル−ルーセント High efficiency transmitter for wireless communication
JP2015533065A (en) * 2012-10-30 2015-11-16 イーティーエー デバイシズ， インコーポレイテッド Transmitter architecture and related methods

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