CA2273151A1 - Efficient parallel-stage power amplifier - Google Patents

Efficient parallel-stage power amplifier Download PDF

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Publication number
CA2273151A1
CA2273151A1 CA002273151A CA2273151A CA2273151A1 CA 2273151 A1 CA2273151 A1 CA 2273151A1 CA 002273151 A CA002273151 A CA 002273151A CA 2273151 A CA2273151 A CA 2273151A CA 2273151 A1 CA2273151 A1 CA 2273151A1
Authority
CA
Canada
Prior art keywords
amplifier
power amplifier
amplified signal
stage power
efficient parallel
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002273151A
Other languages
French (fr)
Other versions
CA2273151C (en
Inventor
John F. Sevic
Richard J. Camarillo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Incorporated
John F. Sevic
Richard J. Camarillo
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 Qualcomm Incorporated, John F. Sevic, Richard J. Camarillo filed Critical Qualcomm Incorporated
Publication of CA2273151A1 publication Critical patent/CA2273151A1/en
Application granted granted Critical
Publication of CA2273151C publication Critical patent/CA2273151C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
    • 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
    • H03F1/0277—Selecting one or more amplifiers from a plurality of amplifiers
    • 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
    • H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
    • H03F3/602—Combinations of several amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0483—Transmitters with multiple parallel paths
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/294—Indexing scheme relating to amplifiers the amplifier being a low noise amplifier [LNA]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7236—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by putting into parallel or not, by choosing between amplifiers by (a ) switch(es)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers

Abstract

An amplifier circuit (40) for providing an amplified signal in response to an input signal. The amplifier circuit (40) includes an input network (44) for applying the input signal to a selected at least one of a plurality of amplifier stages. An output network (48) is provided for coupling the amplified signal from the selected at least one amplifier stage.
The appropriate amplifier stage is selected by a control circuit (56) in response to a desired power value of the amplified signal. By selectively activating only the amplifier stages) that is/are necessary to provide the desired level of output power, increased DC efficiency can be accomplished in applications that require an amplifier which operates linearly over a wide dynamic range.
CA002273151A 1996-12-09 1997-12-05 Efficient parallel-stage power amplifier Expired - Lifetime CA2273151C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/767,124 1996-12-09
US08/767,124 US5872481A (en) 1995-12-27 1996-12-09 Efficient parallel-stage power amplifier
PCT/US1997/022113 WO1998026503A1 (en) 1996-12-09 1997-12-05 Efficient parallel-stage power amplifier

Publications (2)

Publication Number Publication Date
CA2273151A1 true CA2273151A1 (en) 1998-06-18
CA2273151C CA2273151C (en) 2005-07-05

Family

ID=25078550

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002273151A Expired - Lifetime CA2273151C (en) 1996-12-09 1997-12-05 Efficient parallel-stage power amplifier

Country Status (12)

Country Link
US (1) US5872481A (en)
EP (1) EP0941575B1 (en)
JP (1) JP4024867B2 (en)
KR (1) KR100560335B1 (en)
CN (1) CN1148870C (en)
AU (1) AU724403B2 (en)
BR (1) BR9713881B1 (en)
CA (1) CA2273151C (en)
DE (1) DE69727962T2 (en)
HK (1) HK1022794A1 (en)
IL (1) IL130120A (en)
WO (1) WO1998026503A1 (en)

Families Citing this family (189)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US6208846B1 (en) * 1997-01-13 2001-03-27 Lucent Technologies, Inc. Method and apparatus for enhancing transmitter circuit efficiency of mobile radio units by selectable switching of power amplifier
JP3171141B2 (en) * 1997-06-06 2001-05-28 日本電気株式会社 Mobile communication transmitter and control method thereof
JP3094955B2 (en) * 1997-06-23 2000-10-03 日本電気株式会社 Transmission amplifier control circuit
DE69819677T2 (en) * 1998-02-19 2004-09-30 Stmicroelectronics S.R.L., Agrate Brianza Connect a capacitance to a mutually exclusively selected integrated amplifier from a large number of integrated amplifiers
GB9805148D0 (en) * 1998-03-11 1998-05-06 Philips Electronics Nv Radio receiver
US6060949A (en) * 1998-09-22 2000-05-09 Qualcomm Incorporated High efficiency switched gain power amplifier
US6625430B2 (en) * 1998-12-15 2003-09-23 Ericsson Inc. Method and apparatus for attaining higher amplifier efficiencies at lower power levels
US6066983A (en) * 1998-12-21 2000-05-23 At&T Corp PCS multi-carrier linear power amplifier
US6615028B1 (en) * 1998-12-29 2003-09-02 Skyworks Solutions, Inc. System and method for selecting amplifiers in a communications device
US6594303B1 (en) * 1999-01-11 2003-07-15 Qualcomm Incorporated Coherent demodulator for use in the presence of phase discontinuities
JP2000286652A (en) * 1999-03-31 2000-10-13 Harada Ind Co Ltd Controller
US6118343A (en) * 1999-05-10 2000-09-12 Tyco Electronics Logistics Ag Power Amplifier incorporating single drain switch and single negative voltage generator
US6763470B1 (en) * 1999-05-19 2004-07-13 Globespanvirata, Inc. System and method for dynamically amplifying a delayed analog signal based on amplitude information obtained from its digital representation
US6799020B1 (en) * 1999-07-20 2004-09-28 Qualcomm Incorporated Parallel amplifier architecture using digital phase control techniques
WO2001011768A1 (en) * 1999-08-10 2001-02-15 Siemens Aktiengesellschaft Method and device for operating a radio frequency power amplifier
US6518856B1 (en) * 1999-10-13 2003-02-11 Signal Technology Corporation RF power divider/combiner circuit
JP2001203540A (en) 2000-01-19 2001-07-27 Hitachi Ltd High frequency power amplifier
US6300828B1 (en) 2000-01-20 2001-10-09 Next Level Communications Switchless high efficiency amplifier
WO2001056171A2 (en) * 2000-01-25 2001-08-02 Paradigm Wireless Communications, Llc Switch assembly with a multi-pole switch for combining amplified rf signals to a single rf signal
GB2359206B (en) * 2000-02-08 2004-06-23 Wireless Systems Int Ltd Amplifier arrangement
AU2001233317A1 (en) 2000-02-22 2001-09-03 Trilithic, Inc. One-by-n switch matrix
US6522197B2 (en) 2000-04-21 2003-02-18 Paradigm Wireless Systems, Inc. Method and apparatus for optimum biasing of cascaded MOSFET radio-frequency devices
US6288608B1 (en) 2000-04-28 2001-09-11 International Business Machines Corporation Radio frequency power amplifier for a battery powered handset unit of a wireless communications system
US6825719B1 (en) * 2000-05-26 2004-11-30 Intel Corporation RF power amplifier and methods for improving the efficiency thereof
US6639463B1 (en) * 2000-08-24 2003-10-28 Lucent Technologies Inc. Adaptive power amplifier system and method
US6590448B1 (en) 2000-09-01 2003-07-08 Texas Instruments Incorporated Operational amplifier topology and method
US6856199B2 (en) * 2000-10-10 2005-02-15 California Institute Of Technology Reconfigurable distributed active transformers
EP1327301B1 (en) * 2000-10-10 2007-12-19 Nxp B.V. Amplification circuit with improved linearity
US6816012B2 (en) 2000-10-10 2004-11-09 California Institute Of Technology Distributed circular geometry power amplifier architecture
US6587511B2 (en) * 2001-01-26 2003-07-01 Intel Corporation Radio frequency transmitter and methods thereof
US6692700B2 (en) * 2001-02-14 2004-02-17 Handylab, Inc. Heat-reduction methods and systems related to microfluidic devices
KR100396521B1 (en) * 2001-02-28 2003-09-03 삼성전자주식회사 Apparatus of transmitter in mobile communication system
US6744312B2 (en) * 2001-03-06 2004-06-01 Andrew Corporation Adaptive power amplifier system
US7339997B2 (en) * 2001-03-09 2008-03-04 Agere Systems Inc. Line driver and method of operating the same
US6782244B2 (en) 2001-03-16 2004-08-24 Rf Micro Devices, Inc. Segmented power amplifier and method of control
US6785521B2 (en) 2001-03-21 2004-08-31 Ericsson Inc. System and method for current-mode amplitude modulation
US6738432B2 (en) * 2001-03-21 2004-05-18 Ericsson Inc. System and method for RF signal amplification
US6639465B2 (en) 2001-03-27 2003-10-28 Skyworks Solutions, Inc. Dynamic bias for a power amplifier
US7323140B2 (en) * 2001-03-28 2008-01-29 Handylab, Inc. Moving microdroplets in a microfluidic device
US7829025B2 (en) * 2001-03-28 2010-11-09 Venture Lending & Leasing Iv, Inc. Systems and methods for thermal actuation of microfluidic devices
US6701138B2 (en) * 2001-06-11 2004-03-02 Rf Micro Devices, Inc. Power amplifier control
US6680652B2 (en) 2001-08-06 2004-01-20 Rf Micro Devices, Inc. Load switching for transmissions with different peak-to-average power ratios
JP3965284B2 (en) * 2001-09-11 2007-08-29 株式会社ルネサステクノロジ High frequency amplifier and transmitter / receiver
DE10163466A1 (en) * 2001-12-21 2003-07-10 Infineon Technologies Ag Transmission arrangement for continuous data transmission
US20030123566A1 (en) * 2001-12-27 2003-07-03 Jaime Hasson Transmitter having a sigma-delta modulator with a non-uniform polar quantizer and methods thereof
US20030125065A1 (en) * 2001-12-27 2003-07-03 Ilan Barak Method and apparatus for generating an output signal
US6791407B2 (en) * 2002-01-15 2004-09-14 Mia-Com Eurotec B.V. Switchable power amplifier
US6724252B2 (en) 2002-02-21 2004-04-20 Rf Micro Devices, Inc. Switched gain amplifier circuit
TWI326967B (en) * 2002-03-11 2010-07-01 California Inst Of Techn Differential amplifier
EP1345321A1 (en) * 2002-03-13 2003-09-17 Lucent Technologies Inc. A circuit comprising amplifiers connected in parallel, and a method of reducing the difference in amplitude between output signals from amplifiers thereof
JP4686487B2 (en) * 2002-05-31 2011-05-25 株式会社東芝 Amplifier including variable inductor and wireless terminal equipped with the amplifier
US7039377B2 (en) * 2002-06-14 2006-05-02 Skyworks Solutions, Inc. Switchable gain amplifier
US7254449B2 (en) * 2002-07-31 2007-08-07 Advanced Bionics Corp Systems and methods for providing power to one or more implantable devices
US6701134B1 (en) 2002-11-05 2004-03-02 Rf Micro Devices, Inc. Increased dynamic range for power amplifiers used with polar modulation
US20040224649A1 (en) * 2003-02-05 2004-11-11 Khosro Shamsaifar Electronically tunable power amplifier tuner
US7444124B1 (en) 2003-05-14 2008-10-28 Marvell International Ltd. Adjustable segmented power amplifier
US7336753B2 (en) * 2003-06-26 2008-02-26 Marvell International Ltd. Transmitter
US7031678B2 (en) * 2003-07-15 2006-04-18 Qualcomm Inc. Wireless speech and data transmission
US7731906B2 (en) 2003-07-31 2010-06-08 Handylab, Inc. Processing particle-containing samples
DE60304092T2 (en) * 2003-10-04 2006-09-28 Lucent Technologies Network Systems Gmbh Base station for a radio telecommunication system
US7912145B2 (en) * 2003-12-15 2011-03-22 Marvell World Trade Ltd. Filter for a modulator and methods thereof
US7356315B2 (en) * 2003-12-17 2008-04-08 Intel Corporation Outphasing modulators and methods of outphasing modulation
US7177370B2 (en) * 2003-12-17 2007-02-13 Triquint Semiconductor, Inc. Method and architecture for dual-mode linear and saturated power amplifier operation
GB2412515B (en) 2004-03-13 2007-08-08 Filtronic Plc A doherty amplifier
AU2005241080B2 (en) * 2004-05-03 2011-08-11 Handylab, Inc. Processing polynucleotide-containing samples
US6975172B2 (en) * 2004-05-03 2005-12-13 Peavey Electronics Corporation Smart voltage rail reduction audio amplifier
US8852862B2 (en) * 2004-05-03 2014-10-07 Handylab, Inc. Method for processing polynucleotide-containing samples
US7081794B2 (en) * 2004-06-04 2006-07-25 Andrew Corporation Paralleling digital-input amplifiers
US7248109B2 (en) * 2004-07-08 2007-07-24 Pelikan Technologies, Inc. Method and apparatus for an improved power amplifier
US7109791B1 (en) 2004-07-09 2006-09-19 Rf Micro Devices, Inc. Tailored collector voltage to minimize variation in AM to PM distortion in a power amplifier
US20060030275A1 (en) * 2004-08-05 2006-02-09 U.S. Monolithics, L.L.C. High power parallel block-up converter
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) * 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
KR100656333B1 (en) * 2005-04-27 2006-12-13 한국과학기술원 Power amplifier with automatically switching facility
US7230481B2 (en) * 2005-05-05 2007-06-12 Texas Instruments Incorporated System and method for reducing audible artifacts in an audio system
US7336127B2 (en) * 2005-06-10 2008-02-26 Rf Micro Devices, Inc. Doherty amplifier configuration for a collector controlled power amplifier
WO2007044917A2 (en) * 2005-10-11 2007-04-19 Handylab, Inc. Polynucleotide sample preparation device
KR100821197B1 (en) * 2005-10-17 2008-04-11 한국전자통신연구원 High efficient mixed mode power amplifier
US7330071B1 (en) 2005-10-19 2008-02-12 Rf Micro Devices, Inc. High efficiency radio frequency power amplifier having an extended dynamic range
US8334722B2 (en) 2007-06-28 2012-12-18 Parkervision, Inc. Systems and methods of RF power transmission, modulation and amplification
US7911272B2 (en) * 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
DE102005058039B4 (en) * 2005-12-05 2007-08-16 Siemens Ag Circuit arrangement and method for amplification of an electrical input signal
DE102006008725B4 (en) * 2006-02-24 2007-11-15 Siemens Ag Multi-channel amplifier with reduced total power output and circuit arrangement with such a multi-channel amplifier
US8920343B2 (en) 2006-03-23 2014-12-30 Michael Edward Sabatino Apparatus for acquiring and processing of physiological auditory signals
US8088616B2 (en) 2006-03-24 2012-01-03 Handylab, Inc. Heater unit for microfluidic diagnostic system
US7998708B2 (en) * 2006-03-24 2011-08-16 Handylab, Inc. Microfluidic system for amplifying and detecting polynucleotides in parallel
US8883490B2 (en) * 2006-03-24 2014-11-11 Handylab, Inc. Fluorescence detector for microfluidic diagnostic system
EP2005580B1 (en) * 2006-04-10 2010-07-07 Telefonaktiebolaget LM Ericsson (PUBL) A method for compensating signal distortions in composite amplifiers
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US7937106B2 (en) * 2006-04-24 2011-05-03 ParkerVision, Inc, Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same
CN100492921C (en) * 2006-05-30 2009-05-27 华为技术有限公司 Receiver and method for receiving radio signal
KR100780219B1 (en) * 2006-06-05 2007-11-27 삼성전기주식회사 Broadcast receiver having enlarged dynamic range
US8315336B2 (en) * 2007-05-18 2012-11-20 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including a switching stage embodiment
WO2008061165A2 (en) * 2006-11-14 2008-05-22 Handylab, Inc. Microfluidic cartridge and method of making same
US7620129B2 (en) * 2007-01-16 2009-11-17 Parkervision, Inc. RF power transmission, modulation, and amplification, including embodiments for generating vector modulation control signals
WO2008156800A1 (en) 2007-06-19 2008-12-24 Parkervision, Inc. Combiner-less multiple input single output (miso) amplification with blended control
US7710197B2 (en) * 2007-07-11 2010-05-04 Axiom Microdevices, Inc. Low offset envelope detector and method of use
US7649411B2 (en) * 2007-07-11 2010-01-19 Axiom Microdevices, Inc. Segmented power amplifier
US8182763B2 (en) * 2007-07-13 2012-05-22 Handylab, Inc. Rack for sample tubes and reagent holders
WO2009012185A1 (en) * 2007-07-13 2009-01-22 Handylab, Inc. Polynucleotide capture materials, and methods of using same
US8133671B2 (en) * 2007-07-13 2012-03-13 Handylab, Inc. Integrated apparatus for performing nucleic acid extraction and diagnostic testing on multiple biological samples
US8105783B2 (en) * 2007-07-13 2012-01-31 Handylab, Inc. Microfluidic cartridge
US20090136385A1 (en) * 2007-07-13 2009-05-28 Handylab, Inc. Reagent Tube
US9186677B2 (en) * 2007-07-13 2015-11-17 Handylab, Inc. Integrated apparatus for performing nucleic acid extraction and diagnostic testing on multiple biological samples
KR100880448B1 (en) * 2007-08-10 2009-01-29 한국전자통신연구원 Low power consumptive mixed mode power amplifier
FI20075586A0 (en) * 2007-08-24 2007-08-24 Nokia Corp Structure of a radio transmitter signal amplifier
US8547368B2 (en) * 2007-12-28 2013-10-01 Sharp Kabushiki Kaisha Display driving circuit having a memory circuit, display device, and display driving method
WO2009084270A1 (en) * 2007-12-28 2009-07-09 Sharp Kabushiki Kaisha Auxiliary capacity wiring driving circuit and display device
BRPI0820225A2 (en) * 2007-12-28 2015-06-16 Sharp Kk Semiconductor Device and Monitor Device
WO2009084269A1 (en) * 2007-12-28 2009-07-09 Sharp Kabushiki Kaisha Semiconductor device and display device
US7560983B1 (en) 2008-02-02 2009-07-14 Zerog Wireless, Inc. Multiple-path power amplifier
US7656227B1 (en) * 2008-02-26 2010-02-02 Pmc-Sierra, Inc. Techniques to control amplifier gain over process, voltage, and/or temperature (PVT) variations
US8787850B2 (en) * 2008-03-31 2014-07-22 Avago Technologies General Ip (Singapore) Pte. Ltd. Compensating for non-linear capacitance effects in a power amplifier
US8344808B2 (en) 2008-03-31 2013-01-01 Javelin Semiconductor, Inc. Non-linear capacitance compensation
US7872528B2 (en) * 2008-04-10 2011-01-18 Javelin Semiconductor, Inc. Providing pre-distortion to an input signal
US7728661B2 (en) * 2008-05-05 2010-06-01 Javelin Semiconductor, Inc. Controlling power with an output network
US8160520B2 (en) * 2008-05-09 2012-04-17 Javelin Semiconductor, Inc. Supply control for multiple power modes of a power amplifier
WO2009145887A1 (en) * 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
US20100009351A1 (en) * 2008-07-11 2010-01-14 Handylab, Inc. Polynucleotide Capture Materials, and Method of Using Same
US8854019B1 (en) 2008-09-25 2014-10-07 Rf Micro Devices, Inc. Hybrid DC/DC power converter with charge-pump and buck converter
US7952433B2 (en) * 2008-11-25 2011-05-31 Samsung Electro-Mechanics Company Power amplifiers with discrete power control
US7768350B2 (en) * 2008-12-30 2010-08-03 Javelin Semiconductor, Inc. Output gain stage for a power amplifier
US8373507B2 (en) * 2008-12-31 2013-02-12 Nxp B.V. Power amplifier protection
US9166471B1 (en) 2009-03-13 2015-10-20 Rf Micro Devices, Inc. 3D frequency dithering for DC-to-DC converters used in multi-mode cellular transmitters
US8315576B2 (en) 2009-05-05 2012-11-20 Rf Micro Devices, Inc. Capacitive compensation of cascaded directional couplers
US8536950B2 (en) * 2009-08-03 2013-09-17 Qualcomm Incorporated Multi-stage impedance matching
US8102205B2 (en) 2009-08-04 2012-01-24 Qualcomm, Incorporated Amplifier module with multiple operating modes
US8116700B2 (en) * 2009-11-16 2012-02-14 Javelin Semiconductor, Inc. Reducing common mode effects in an output stage
CN102142814B (en) * 2010-02-01 2014-11-26 富士通株式会社 Power amplifier related device, power amplifier predistortion system and modeling method
US8548398B2 (en) 2010-02-01 2013-10-01 Rf Micro Devices, Inc. Envelope power supply calibration of a multi-mode radio frequency power amplifier
US8538355B2 (en) 2010-04-19 2013-09-17 Rf Micro Devices, Inc. Quadrature power amplifier architecture
US8811920B2 (en) 2010-04-20 2014-08-19 Rf Micro Devices, Inc. DC-DC converter semiconductor die structure
US8565694B2 (en) 2010-04-20 2013-10-22 Rf Micro Devices, Inc. Split current current digital-to-analog converter (IDAC) for dynamic device switching (DDS) of an RF PA stage
US8913971B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Selecting PA bias levels of RF PA circuitry during a multislot burst
US9030256B2 (en) 2010-04-20 2015-05-12 Rf Micro Devices, Inc. Overlay class F choke
US9362825B2 (en) 2010-04-20 2016-06-07 Rf Micro Devices, Inc. Look-up table based configuration of a DC-DC converter
US9048787B2 (en) 2010-04-20 2015-06-02 Rf Micro Devices, Inc. Combined RF detector and RF attenuator with concurrent outputs
US8913967B2 (en) 2010-04-20 2014-12-16 Rf Micro Devices, Inc. Feedback based buck timing of a direct current (DC)-DC converter
US9214865B2 (en) 2010-04-20 2015-12-15 Rf Micro Devices, Inc. Voltage compatible charge pump buck and buck power supplies
US8542061B2 (en) 2010-04-20 2013-09-24 Rf Micro Devices, Inc. Charge pump based power amplifier envelope power supply and bias power supply
US8983407B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Selectable PA bias temperature compensation circuitry
US8942650B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. RF PA linearity requirements based converter operating mode selection
US9077405B2 (en) 2010-04-20 2015-07-07 Rf Micro Devices, Inc. High efficiency path based power amplifier circuitry
US9577590B2 (en) 2010-04-20 2017-02-21 Qorvo Us, Inc. Dual inductive element charge pump buck and buck power supplies
US9214900B2 (en) 2010-04-20 2015-12-15 Rf Micro Devices, Inc. Interference reduction between RF communications bands
US8712349B2 (en) 2010-04-20 2014-04-29 Rf Micro Devices, Inc. Selecting a converter operating mode of a PA envelope power supply
US9008597B2 (en) 2010-04-20 2015-04-14 Rf Micro Devices, Inc. Direct current (DC)-DC converter having a multi-stage output filter
US8515361B2 (en) 2010-04-20 2013-08-20 Rf Micro Devices, Inc. Frequency correction of a programmable frequency oscillator by propagation delay compensation
US8942651B2 (en) 2010-04-20 2015-01-27 Rf Micro Devices, Inc. Cascaded converged power amplifier
US8559898B2 (en) 2010-04-20 2013-10-15 Rf Micro Devices, Inc. Embedded RF PA temperature compensating bias transistor
US8983410B2 (en) 2010-04-20 2015-03-17 Rf Micro Devices, Inc. Configurable 2-wire/3-wire serial communications interface
US8958763B2 (en) 2010-04-20 2015-02-17 Rf Micro Devices, Inc. PA bias power supply undershoot compensation
US8831544B2 (en) 2010-04-20 2014-09-09 Rf Micro Devices, Inc. Dynamic device switching (DDS) of an in-phase RF PA stage and a quadrature-phase RF PA stage
US9184701B2 (en) 2010-04-20 2015-11-10 Rf Micro Devices, Inc. Snubber for a direct current (DC)-DC converter
US8699973B2 (en) 2010-04-20 2014-04-15 Rf Micro Devices, Inc. PA bias power supply efficiency optimization
US9900204B2 (en) 2010-04-20 2018-02-20 Qorvo Us, Inc. Multiple functional equivalence digital communications interface
US8571492B2 (en) 2010-04-20 2013-10-29 Rf Micro Devices, Inc. DC-DC converter current sensing
US8842399B2 (en) 2010-04-20 2014-09-23 Rf Micro Devices, Inc. ESD protection of an RF PA semiconductor die using a PA controller semiconductor die
US8706063B2 (en) 2010-04-20 2014-04-22 Rf Micro Devices, Inc. PA envelope power supply undershoot compensation
US8947157B2 (en) 2010-04-20 2015-02-03 Rf Micro Devices, Inc. Voltage multiplier charge pump buck
US8892063B2 (en) 2010-04-20 2014-11-18 Rf Micro Devices, Inc. Linear mode and non-linear mode quadrature PA circuitry
US8811921B2 (en) 2010-04-20 2014-08-19 Rf Micro Devices, Inc. Independent PA biasing of a driver stage and a final stage
US9553550B2 (en) 2010-04-20 2017-01-24 Qorvo Us, Inc. Multiband RF switch ground isolation
US8731498B2 (en) 2010-04-20 2014-05-20 Rf Micro Devices, Inc. Temperature correcting an envelope power supply signal for RF PA circuitry
US8989685B2 (en) 2010-04-20 2015-03-24 Rf Micro Devices, Inc. Look-up table based configuration of multi-mode multi-band radio frequency power amplifier circuitry
US8786381B2 (en) 2010-06-28 2014-07-22 Avago Technologies General Ip (Singapore) Pte. Ltd. Transformer structures for a power amplifier (PA)
WO2012088300A2 (en) * 2010-12-22 2012-06-28 Skyworks Solutions, Inc. Power amplifier control circuit
DE102011006872A1 (en) * 2011-04-06 2012-10-11 Siemens Aktiengesellschaft Transmission device for controlling a high-frequency antenna of a magnetic resonance device, power amplifier unit and method for generating an amplitude-modulated target signal
WO2012139126A1 (en) 2011-04-08 2012-10-11 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
WO2012167111A2 (en) 2011-06-02 2012-12-06 Parkervision, Inc. Antenna control
US9203657B2 (en) * 2011-09-27 2015-12-01 Skyworks Solutions, Inc. Apparatus and methods for fixed DC bias to improve linearity in signal processing circuits
US9065505B2 (en) 2012-01-31 2015-06-23 Rf Micro Devices, Inc. Optimal switching frequency for envelope tracking power supply
US9065386B2 (en) 2012-02-29 2015-06-23 Avago Technologies General Ip (Singapore) Pte. Ltd. Low voltage operation for a power amplifier
US9252492B2 (en) 2012-08-29 2016-02-02 Intel Deutschland Gmbh Antenna tuning via multi-feed transceiver architecture
KR20160058855A (en) 2013-09-17 2016-05-25 파커비전, 인크. Method, apparatus and system for rendering an information bearing function of time
US10522124B2 (en) * 2013-10-30 2019-12-31 Harman Becker Automotive Systems Gmbh Infotainment system
US9998114B2 (en) * 2013-10-31 2018-06-12 Honeywell International Inc. Matrix ferrite driver circuit
KR101793604B1 (en) * 2013-12-24 2017-11-03 지멘스 엘엘씨 Arrangement and method for rf high power generation
JP2015154353A (en) * 2014-02-17 2015-08-24 三菱電機株式会社 High frequency power amplifier and method of manufacturing the same
US9595921B2 (en) * 2014-06-30 2017-03-14 Skyworks Solutions, Inc. Power amplifier having a common input and a plurality of outputs
US9871511B2 (en) 2014-07-01 2018-01-16 Honeywell International Inc. Protection switching for matrix of ferrite modules with redundant control
US9473081B2 (en) 2014-10-20 2016-10-18 Qualcomm Incorporated Circuits and methods for reducing supply sensitivity in a power amplifier
CN105939150A (en) * 2016-04-16 2016-09-14 合肥博雷电气有限公司 Linear microwave power amplifier
CN105939149A (en) * 2016-04-16 2016-09-14 合肥博雷电气有限公司 Tunable microwave power amplifier device
CN106341090B (en) * 2016-07-26 2019-05-17 苏州能讯高能半导体有限公司 A kind of power amplification circuit
US10555269B2 (en) 2017-11-24 2020-02-04 Mediatek Inc. Amplifier circuit having controllable output stage
US11678925B2 (en) 2018-09-07 2023-06-20 Cilag Gmbh International Method for controlling an energy module output
US11950860B2 (en) 2021-03-30 2024-04-09 Cilag Gmbh International User interface mitigation techniques for modular energy systems

Family Cites Families (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3325738A (en) * 1964-02-17 1967-06-13 Avco Corp Signal to noise ratio controlled squelch circuit
US3469195A (en) * 1965-11-29 1969-09-23 Rca Corp Detector and agc circuit stabilization responsive to power supply changes
US3514710A (en) * 1968-11-04 1970-05-26 Avco Corp Signal amplifier with direct current energy supply and dynamic range controlled in accordance with composite input signal level
US3665507A (en) * 1971-01-04 1972-05-23 Gen Electric Signal processor for reception of amplitude or frequency modulated signals
JPS5549450B2 (en) * 1973-01-12 1980-12-12
US4263560A (en) * 1974-06-06 1981-04-21 The United States Of America As Represented By The Secretary Of The Navy Log-exponential AGC circuit
GB1546672A (en) * 1975-07-03 1979-05-31 Sony Corp Signal compression and expansion circuits
US4041396A (en) * 1975-12-22 1977-08-09 Motorola, Inc. Environmentally sensitive transmit power maximizing circuitry and method
DE2803204C2 (en) * 1978-01-25 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Amplifiers for electrical signals
US4158180A (en) * 1978-04-13 1979-06-12 General Electric Company Temperature control circuit
US4207538A (en) * 1978-08-29 1980-06-10 Rca Corporation Temperature compensation circuit
US4320350A (en) * 1979-11-29 1982-03-16 Rockwell International Corporation Sliding power supply for RF power amplifier
US4380711A (en) * 1980-12-15 1983-04-19 Rockwell International Corporation Linearization circuit
FR2512292B1 (en) * 1981-08-25 1986-11-21 Lmt Radio Professionelle MICROWAVE AMPLIFIER WITH FIELD EFFECT TRANSISTORS, PARTICULARLY FOR DOPPLER RADAR
US4426625A (en) * 1981-08-27 1984-01-17 Rca Corporation Circuit for linearly gain controlling a differential amplifier
US4439744A (en) * 1981-12-24 1984-03-27 Rca Corporation Variable power amplifier
DE3204217A1 (en) * 1982-02-08 1983-08-18 Philips Patentverwaltung Gmbh, 2000 Hamburg CIRCUIT FOR THE ELECTRONIC AMPLIFIER POSITION
GB2117583B (en) * 1982-03-31 1986-01-29 Ferranti Plc Gain control circuit
US4447783A (en) * 1982-05-19 1984-05-08 The Perkin-Elmer Corp. Programmable RF power regulator (stabilizer)
US4560949A (en) * 1982-09-27 1985-12-24 Rockwell International Corporation High speed AGC circuit
JPS5981113U (en) * 1982-11-25 1984-06-01 日本電気株式会社 Output power control circuit
JPH0744417B2 (en) * 1982-11-27 1995-05-15 株式会社東芝 Noise cancellation circuit
US4495648A (en) * 1982-12-27 1985-01-22 At&T Bell Laboratories Transmitter power control circuit
US4523155A (en) * 1983-05-04 1985-06-11 Motorola, Inc. Temperature compensated automatic output control circuitry for RF signal power amplifiers with wide dynamic range
NL8400495A (en) * 1984-02-16 1985-09-16 Philips Nv AMPLIFY CONTROLLED AMPLIFIER DEVICE.
US4593409A (en) * 1984-04-04 1986-06-03 Motorola, Inc. Transceiver protection arrangement
JPS60223231A (en) * 1984-04-19 1985-11-07 Nec Corp Radio communication equipment
US4613990A (en) * 1984-06-25 1986-09-23 At&T Bell Laboratories Radiotelephone transmission power control
US4592252A (en) * 1984-07-23 1986-06-03 Cdp, Ltd. Rolling cutters for drill bits, and processes to produce same
JPS61210728A (en) * 1985-03-14 1986-09-18 Alps Electric Co Ltd Output power control device for transmitter
US4602218A (en) * 1985-04-30 1986-07-22 Motorola, Inc. Automatic output control circuitry for RF power amplifiers with wide dynamic range
JPS62199133A (en) * 1986-02-27 1987-09-02 Nec Corp Automobile telephone connection system
US4740964A (en) * 1986-06-20 1988-04-26 Rockwell International Corporation Alarm indications signal detection apparatus
US4901307A (en) * 1986-10-17 1990-02-13 Qualcomm, Inc. Spread spectrum multiple access communication system using satellite or terrestrial repeaters
JPS63226124A (en) * 1986-10-29 1988-09-20 Oki Electric Ind Co Ltd Level control circuit for radio equipment
FR2606953A1 (en) * 1986-11-18 1988-05-20 Radiotechnique Compelec VARIABLE GAIN AMPLIFICATION CIRCUIT AND ITS APPLICATION TO AN AUTOMATIC GAIN CONTROL DEVICE
US4727337A (en) * 1987-04-24 1988-02-23 Motorola, Inc. Protection circuit for RF power amplifiers
US4816772A (en) * 1988-03-09 1989-03-28 Rockwell International Corporation Wide range linear automatic gain control amplifier
US4901032A (en) * 1988-12-01 1990-02-13 General Electric Company Digitally controlled variable power amplifier
JP2609310B2 (en) * 1988-12-22 1997-05-14 株式会社日立製作所 Transmission circuit
US4893093A (en) * 1989-02-02 1990-01-09 United Technologies Incorporated Switched power splitter
FI81931C (en) * 1989-05-12 1990-12-10 Nokia Mobira Oy Method of generating low power levels in the transmitter of a radiotelephone
CA2017904C (en) * 1989-05-31 1993-11-16 Shinichi Miyazaki High frequency amplifier circuit capable of optimizing a total power consumption
DE69024182T2 (en) * 1989-06-30 1996-10-31 Nippon Telegraph & Telephone LINEAR TRANSMITTER
JP2986832B2 (en) * 1990-03-13 1999-12-06 三菱電機株式会社 Variable gain amplifier
JPH0454006A (en) * 1990-06-22 1992-02-21 Fujitsu Ltd Amplifier
US5099204A (en) * 1990-10-15 1992-03-24 Qualcomm Incorporated Linear gain control amplifier
US5107225A (en) * 1990-11-30 1992-04-21 Qualcomm Incorporated High dynamic range closed loop automatic gain control circuit
US5132634A (en) * 1991-03-25 1992-07-21 Motorola, Inc. Amplifier circuit with envelope smoothing
US5136300A (en) * 1991-06-13 1992-08-04 Westinghouse Electric Corp. Modular solid state radar transmitter
US5175871A (en) * 1991-08-08 1992-12-29 Ericsson/Ge Mobile Communication Holding Inc. Power amplifier for a cellular telephone
US5192919A (en) * 1991-10-03 1993-03-09 Motorola, Inc. Transmitter having a temperature adjusted power amplifier
IT1251931B (en) * 1991-10-16 1995-05-27 Fiar Spa CONTROL DEVICE PARTICULARLY FOR SATELLITE AMPLIFIERS AND SIMILAR.
CA2108461C (en) * 1992-03-13 1999-09-07 Dale G. Schwent Power amplifier combining network
JPH08501425A (en) * 1992-09-15 1996-02-13 アナロジック コーポレーション High power solid state RF amplifier
US5302914A (en) * 1992-10-20 1994-04-12 At&T Bell Laboratories Method and apparatus for reducing the peak-to-average power in multi-carrier RF communication systems
US5339046A (en) * 1993-06-03 1994-08-16 Alps Electric Co., Ltd. Temperature compensated variable gain amplifier
JP3444653B2 (en) * 1994-06-09 2003-09-08 三菱電機株式会社 Power amplifier
US5541554A (en) * 1995-03-06 1996-07-30 Motorola, Inc. Multi-mode power amplifier
US5608353A (en) * 1995-03-29 1997-03-04 Rf Micro Devices, Inc. HBT power amplifier
US5568086A (en) * 1995-05-25 1996-10-22 Motorola, Inc. Linear power amplifier for high efficiency multi-carrier performance

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KR20000069382A (en) 2000-11-25
BR9713881A (en) 2000-02-29
CN1269066A (en) 2000-10-04
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KR100560335B1 (en) 2006-03-14
CA2273151C (en) 2005-07-05
JP4024867B2 (en) 2007-12-19
WO1998026503A1 (en) 1998-06-18
IL130120A0 (en) 2000-06-01
BR9713881B1 (en) 2009-08-11
EP0941575A1 (en) 1999-09-15
IL130120A (en) 2003-05-29
HK1022794A1 (en) 2000-08-18
AU5515298A (en) 1998-07-03
DE69727962D1 (en) 2004-04-08
AU724403B2 (en) 2000-09-21
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CN1148870C (en) 2004-05-05
US5872481A (en) 1999-02-16

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