JP5119961B2 - 包絡線追跡電源回路及びそれを含む高周波増幅器 - Google Patents
包絡線追跡電源回路及びそれを含む高周波増幅器 Download PDFInfo
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- JP5119961B2 JP5119961B2 JP2008029333A JP2008029333A JP5119961B2 JP 5119961 B2 JP5119961 B2 JP 5119961B2 JP 2008029333 A JP2008029333 A JP 2008029333A JP 2008029333 A JP2008029333 A JP 2008029333A JP 5119961 B2 JP5119961 B2 JP 5119961B2
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- 239000004065 semiconductor Substances 0.000 description 21
- 238000010248 power generation Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 8
- 230000007423 decrease Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000010295 mobile communication Methods 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 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
- H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
- H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
-
- 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
- H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
- H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/189—High-frequency amplifiers, e.g. radio frequency 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
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- 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
- H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0045—Converters combining the concepts of switch-mode regulation and linear regulation, e.g. linear pre-regulator to switching converter, linear and switching converter in parallel, same converter or same transistor operating either in linear or switching mode
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/195—A hybrid coupler being used as power measuring circuit at the input of an amplifier circuit
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Dc-Dc Converters (AREA)
Description
D. F. Kimball, et al., "High-Efficiency Envelope-Tracking W-CDMABase-Station Amplifier Using GaN HFETs", IEEE Trans. on Microwave Theory andTechniques, vol.54, no.11, November 2006 F. Wang, "High Efficiency Linear Envelope Tracking and EnvelopeElimination and Restoration Power Amplifier for WLAN OFDM Applications", Ph.D.Dissertation, University of California, San Diego, 2006 P. Draxler, S. Lanfranco, et al., "High Efficiency Envelope TrackingLDMOS Power Amplifier for W-CDMA", IEEE MTT-S International MicrowaveSymposium, pp.1534-1537, June 2006 P. Asbeck, D. Kimball, et al., "Next Genaration High-Efficiency RFTransmitter Technology for Basestations", Extended Abstracts of 2007International Conference on Solid Sate Devices and Materials, pp. 146-147,Tsukuba, September 2007
図1は、本発明の好適な一実施形態にかかる高周波増幅器1の概略構成を示す回路図である。同図に示す高周波増幅器1は、移動通信用の無線基地局において無線信号を増幅するためのものであり、包絡線検出部3と包絡線追跡電源回路5とパワーアンプ4とによって構成されている。
により、インダクタンスLの最適値を決定する。式(1)において、Vs_dcは、包絡線信号SEの直流成分を示し、Dは、Vs_dc/Vddで計算される平均デューティ比を示し、分母は、包絡線信号SEの時間変化量を平均化したものを示している。また、このときのスイッチング周波数は、下記式(2);
により表される。式(2)において、Vs_rmsは、包絡線信号SEの2乗平均を示している。これにより、ヒステリシス幅h以外は既知であるので、スイッチング周波数を決めるとヒステリシス幅hの最適値を決定できる。
Claims (4)
- 高周波信号の包絡線に応じた出力電圧を生成する包絡線追跡電源回路であって、
前記包絡線に対応する包絡線信号が入力されて、該包絡線信号に応じた電圧を出力するボルテージフォロア回路部と、
前記ボルテージフォロア回路の出力と前記出力電圧の出力端子との間に並列に接続された第1及び第2の並列抵抗と、
前記第1及び第2の並列抵抗におけるそれぞれの電圧降下を検出して、該電圧降下に応じた電圧を生成する第1及び第2のヒステリシスコンパレータ部と、
前記第1及び第2のヒステリシスコンパレータ部のそれぞれが出力する電圧に応じてスイッチングして、前記出力端子に電圧を出力する第1及び第2のスイッチングコンバータ部と、
を備えることを特徴とする包絡線追跡電源回路。 - 前記第1及び第2のスイッチングコンバータ部は、それぞれ、前記第1及び第2のヒステリシスコンパレータ部の出力する電圧に応じてオン/オフする第1及び第2のスイッチと、前記第1及び第2のスイッチを流れる電流を受ける第1及び第2のインダクタとを有し、
前記第1のインダクタのインダクタンスは、前記第2のインダクタのインダクタンスよりも小さい、
ことを特徴とする請求項1記載の包絡線追跡電源回路。 - 前記第1のヒステリシスコンパレータ部のヒステリシス幅は、前記第2のヒステリシスコンパレータ部のヒステリシス幅よりも大きい、
ことを特徴とする請求項2記載の包絡線追跡電源回路。 - 請求項1〜3のいずれか1項に記載の包絡線追跡電源回路と、
前記包絡線追跡電源回路の前記出力端子からの出力電圧の供給を受けて、前記高周波信号を増幅する増幅器と、
を備えることを特徴とする高周波増幅器。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008029333A JP5119961B2 (ja) | 2008-02-08 | 2008-02-08 | 包絡線追跡電源回路及びそれを含む高周波増幅器 |
KR1020107015825A KR20100108561A (ko) | 2008-02-08 | 2009-02-03 | 포락선 추적 전원 회로 및 그것을 포함하는 고주파 증폭기 |
PCT/JP2009/051771 WO2009099056A1 (ja) | 2008-02-08 | 2009-02-03 | 包絡線追跡電源回路及びそれを含む高周波増幅器 |
US12/866,676 US8587271B2 (en) | 2008-02-08 | 2009-02-03 | Envelope tracking power supply circuit and high-frequency amplifier including envelope tracking power supply circuit |
EP09707832A EP2244366A1 (en) | 2008-02-08 | 2009-02-03 | Envelope tracking power supply circuit and high-frequency amplifier including envelope tracking power supply circuit |
CN2009801043868A CN101939900A (zh) | 2008-02-08 | 2009-02-03 | 包络线跟踪电源电路及包括该电路的高频放大器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008029333A JP5119961B2 (ja) | 2008-02-08 | 2008-02-08 | 包絡線追跡電源回路及びそれを含む高周波増幅器 |
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Publication Number | Publication Date |
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JP2009189215A JP2009189215A (ja) | 2009-08-20 |
JP2009189215A5 JP2009189215A5 (ja) | 2011-02-17 |
JP5119961B2 true JP5119961B2 (ja) | 2013-01-16 |
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JP2008029333A Expired - Fee Related JP5119961B2 (ja) | 2008-02-08 | 2008-02-08 | 包絡線追跡電源回路及びそれを含む高周波増幅器 |
Country Status (6)
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US (1) | US8587271B2 (ja) |
EP (1) | EP2244366A1 (ja) |
JP (1) | JP5119961B2 (ja) |
KR (1) | KR20100108561A (ja) |
CN (1) | CN101939900A (ja) |
WO (1) | WO2009099056A1 (ja) |
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-
2008
- 2008-02-08 JP JP2008029333A patent/JP5119961B2/ja not_active Expired - Fee Related
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2009
- 2009-02-03 EP EP09707832A patent/EP2244366A1/en not_active Withdrawn
- 2009-02-03 CN CN2009801043868A patent/CN101939900A/zh active Pending
- 2009-02-03 KR KR1020107015825A patent/KR20100108561A/ko not_active Application Discontinuation
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JP2009189215A (ja) | 2009-08-20 |
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EP2244366A1 (en) | 2010-10-27 |
US20110031953A1 (en) | 2011-02-10 |
US8587271B2 (en) | 2013-11-19 |
KR20100108561A (ko) | 2010-10-07 |
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