FI971515A0 - AM-FM lähettimen BC-luokan tehonvahvistin - Google Patents

AM-FM lähettimen BC-luokan tehonvahvistin

Info

Publication number
FI971515A0
FI971515A0 FI971515A FI971515A FI971515A0 FI 971515 A0 FI971515 A0 FI 971515A0 FI 971515 A FI971515 A FI 971515A FI 971515 A FI971515 A FI 971515A FI 971515 A0 FI971515 A0 FI 971515A0
Authority
FI
Finland
Prior art keywords
transmitters
class
power amplifier
amplifier
power
Prior art date
Application number
FI971515A
Other languages
English (en)
Swedish (sv)
Other versions
FI971515A (fi
Inventor
Paul W Dent
Original Assignee
Ericsson Ge Mobile Inc
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 Ericsson Ge Mobile Inc filed Critical Ericsson Ge Mobile Inc
Publication of FI971515A0 publication Critical patent/FI971515A0/fi
Publication of FI971515A publication Critical patent/FI971515A/fi

Links

Classifications

    • 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
    • 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
    • H03F1/0244—Stepped control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/516—Some amplifier stages of an amplifier use supply voltages of different value
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/541—Transformer coupled at the output of an 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
    • H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
    • H03F2203/30048—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor the SEPP amplifier has multiple SEPP outputs from paralleled output stages coupled in one or more outputs

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
FI971515A 1994-10-12 1997-04-11 AM-FM lähettimen BC-luokan tehonvahvistin FI971515A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/321,446 US5570062A (en) 1994-10-12 1994-10-12 AM-FM transmitter power amplifier using class-BC
PCT/US1995/012485 WO1996012342A1 (en) 1994-10-12 1995-10-10 Am-fm transmitter power amplifier using class-bc

Publications (2)

Publication Number Publication Date
FI971515A0 true FI971515A0 (fi) 1997-04-11
FI971515A FI971515A (fi) 1997-06-09

Family

ID=23250646

Family Applications (1)

Application Number Title Priority Date Filing Date
FI971515A FI971515A (fi) 1994-10-12 1997-04-11 AM-FM lähettimen BC-luokan tehonvahvistin

Country Status (11)

Country Link
US (2) US5570062A (fi)
EP (1) EP0787381B1 (fi)
KR (1) KR100376081B1 (fi)
CN (1) CN1063892C (fi)
AU (1) AU691363B2 (fi)
BR (1) BR9509325A (fi)
CA (1) CA2202464C (fi)
DE (1) DE69522335T2 (fi)
FI (1) FI971515A (fi)
MX (1) MX9702579A (fi)
WO (1) WO1996012342A1 (fi)

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JPH10116732A (ja) * 1996-10-09 1998-05-06 Nec Corp 伝送線路トランス及びこれを使用した増幅ユニット
FI107658B (fi) * 1997-06-02 2001-09-14 Nokia Mobile Phones Ltd Biasjänniteohjattuja rinnakkaisia aktiivikomponentteja
DE19846069A1 (de) * 1998-10-06 2000-04-13 Siemens Ag Sendeendstufe für ein Mobiltelefon
DE69833635T2 (de) 1998-12-14 2007-01-18 Alcatel Verstärkungsanordnung mit Spannungsverstärkung und reduziertem Leistungsverbrauch
US6864668B1 (en) 1999-02-09 2005-03-08 Tropian, Inc. High-efficiency amplifier output level and burst control
US6377784B2 (en) 1999-02-09 2002-04-23 Tropian, Inc. High-efficiency modulation RF amplifier
US6366177B1 (en) 2000-02-02 2002-04-02 Tropian Inc. High-efficiency power modulators
US6294955B1 (en) * 2000-04-07 2001-09-25 Harris Corporation Apparatus and method for use in disconnecting and/or replacing one of a plurality of power amplifiers in a transmitter while the transmitter is operating
WO2002095914A2 (en) * 2001-02-06 2002-11-28 Harman International Industries, Inc. Half-bridge gate driver circuit
US6472936B1 (en) * 2001-05-14 2002-10-29 National Semiconductor Corporation Low-noise gain switching circuit using tapped inductor
US6665525B2 (en) 2001-05-29 2003-12-16 Ericsson Inc. High-level modulation method and apparatus
US6545541B2 (en) 2001-05-29 2003-04-08 Ericsson Inc. Power amplifier embedded cell bias detection, methods of detecting bias in power amplifiers and systems utilizing embedded cell bias detection
US20040100376A1 (en) * 2002-11-26 2004-05-27 Kimberly-Clark Worldwide, Inc. Healthcare monitoring system
US7889787B2 (en) * 2003-08-04 2011-02-15 Supertex, Inc. Ultrasound transmit beamformer integrated circuit and method
US7129784B2 (en) * 2004-10-28 2006-10-31 Broadcom Corporation Multilevel power amplifier architecture using multi-tap transformer
KR101126411B1 (ko) 2004-12-31 2012-03-28 삼성전자주식회사 효율을 증대시키고 작은 사이즈로 온-칩으로 집적화된ｃｍｏｓ 전력 증폭기
US7764210B2 (en) * 2006-12-20 2010-07-27 Texas Instruments Incorporated System and method for converting an input signal
US7728661B2 (en) * 2008-05-05 2010-06-01 Javelin Semiconductor, Inc. Controlling power with an output network
US7768350B2 (en) * 2008-12-30 2010-08-03 Javelin Semiconductor, Inc. Output gain stage for a power amplifier
EP2226932B1 (en) 2009-03-02 2013-10-16 Alcatel Lucent Method for amplifying a signal by a power amplifier, power amplifier system, device, computer program product, and digital storage medium thereof
TWI458174B (zh) * 2009-05-19 2014-10-21 Marvell World Trade Ltd 結合信號功率之電路及方法
US8786381B2 (en) 2010-06-28 2014-07-22 Avago Technologies General Ip (Singapore) Pte. Ltd. Transformer structures for a power amplifier (PA)
JP5989578B2 (ja) * 2013-03-14 2016-09-07 株式会社東芝 高周波広帯域増幅回路
JP5727561B2 (ja) * 2013-08-29 2015-06-03 住友電気工業株式会社 変圧装置
JP5695782B1 (ja) * 2013-09-12 2015-04-08 住友電気工業株式会社 変圧装置
JP6297963B2 (ja) 2014-11-05 2018-03-20 住友電気工業株式会社 変圧装置
JP6359950B2 (ja) 2014-11-05 2018-07-18 住友電気工業株式会社 変圧装置
CN104851425B (zh) * 2015-05-30 2018-11-30 宁波摩米创新工场电子科技有限公司 一种基于对称式三极管放大电路的高清语音识别系统

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US3579136A (en) * 1965-12-13 1971-05-18 George A Machamer Multi-stage power amplifier in which each stage conducts for only a predetermined portion of the input
US3577092A (en) * 1968-07-09 1971-05-04 Collins Radio Co Signal path series step-biased multidevice high-efficiency amplifier
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US5239275A (en) * 1989-08-04 1993-08-24 Motorola, Inc. Amplitude modulator circuit having multiple power supplies
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Also Published As

Publication number Publication date
DE69522335T2 (de) 2002-05-08
FI971515A (fi) 1997-06-09
US5570062A (en) 1996-10-29
BR9509325A (pt) 1997-10-14
EP0787381A1 (en) 1997-08-06
WO1996012342A1 (en) 1996-04-25
AU3945395A (en) 1996-05-06
MX9702579A (es) 1997-07-31
US5652546A (en) 1997-07-29
CA2202464A1 (en) 1996-04-25
AU691363B2 (en) 1998-05-14
EP0787381B1 (en) 2001-08-22
CN1168749A (zh) 1997-12-24
DE69522335D1 (de) 2001-09-27
CN1063892C (zh) 2001-03-28
CA2202464C (en) 2005-06-28
KR100376081B1 (ko) 2003-06-11

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