ES2115147T3 - Amplificador de potencia y transmisor de radio. - Google Patents

Amplificador de potencia y transmisor de radio.

Info

Publication number
ES2115147T3
ES2115147T3 ES94120389T ES94120389T ES2115147T3 ES 2115147 T3 ES2115147 T3 ES 2115147T3 ES 94120389 T ES94120389 T ES 94120389T ES 94120389 T ES94120389 T ES 94120389T ES 2115147 T3 ES2115147 T3 ES 2115147T3
Authority
ES
Spain
Prior art keywords
loop
amplifier
closing
radio transmitter
power amplifier
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.)
Expired - Lifetime
Application number
ES94120389T
Other languages
English (en)
Inventor
Anthony John Wray
Babak Bastani
Paul Howe Gailus
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ES2115147T3 publication Critical patent/ES2115147T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • 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

Landscapes

  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

SE DESCRIBE UN AMPLIFICADOR DE POTENCIA, TAL COMO UN AMPLIFICADOR QUE HACE USO DE UNA REALIMENTACION EN BUCLE CERRADO (EJ. REALIMENTACION CARTESIANA) ASI COMO UN RADIOTRANSMISOR QUE TIENE INCORPORADO TAL AMPLIFICADOR. EL CIRCUITO AMPLIFICADOR TIENE UN BUCLE DE CONTROL DEL AMPLIFICADOR Y UN ELEMENTO DE CIERRE DEL BUCLE (18, 107) PARA ABRIR Y CERRAR SELECTIVAMENTE EL BUCLE DE CONTROL EN RESPUESTA A UNA SEÑAL DE CIERRE DEL BUCLE (40). SE AJUSTAN UNO O MAS ELEMENTOS DE GANANCIA (30, 31, 32, 33, 101, 102, 110, 111) EXTERNOS AL BUCLE DE CONTROL PARA QUE RESPONDAN A LA SEÑAL DE CIERRE DEL BUCLE PARA MANTENER UNA GANANCIA APROXIMADAMENTE CONSTANTE ENTRE LA ENTRADA Y LA SALIDA DEL AMPLIFICADOR DURANTE LA ABERTURA Y CIERRE DEL BUCLE. PUESTO QUE EL AJUSTE DE LA GANANCIA SE LLEVA A CABO DESDE EL EXTERIOR DEL BUCLE, SE REDUCE O ELIMINA CUALQUIER IMPACTO NEGATIVO EN EL DESPLAZAMIENTO DE FASE O ESTABILIDAD DE FASE Y EL CIRCUITO SE PUEDE DISEÑA DE MODO QUE TENGA UN MARGEN DE FASE REDUCIDO Y UNA MAYOR SIMPLICIDAD.
ES94120389T 1994-01-29 1994-12-22 Amplificador de potencia y transmisor de radio. Expired - Lifetime ES2115147T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9401704A GB2286302B (en) 1994-01-29 1994-01-29 Power amplifier and radio transmitter

Publications (1)

Publication Number Publication Date
ES2115147T3 true ES2115147T3 (es) 1998-06-16

Family

ID=10749525

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94120389T Expired - Lifetime ES2115147T3 (es) 1994-01-29 1994-12-22 Amplificador de potencia y transmisor de radio.

Country Status (8)

Country Link
US (1) US5467055A (es)
EP (1) EP0665641B1 (es)
JP (1) JP3223744B2 (es)
CN (1) CN1077745C (es)
AT (1) ATE165696T1 (es)
DE (1) DE69409939T2 (es)
ES (1) ES2115147T3 (es)
GB (1) GB2286302B (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2287595B (en) * 1994-03-09 1997-03-05 Motorola Ltd Method for amplitude training in a linear power amplifier
US5758269A (en) * 1995-03-30 1998-05-26 Lucent Technologies Inc. High-efficient configurable power amplifier for use in a portable unit
US5689815A (en) * 1995-05-04 1997-11-18 Oki Telecom, Inc. Saturation prevention system for radio telephone with open and closed loop power control systems
JPH09270723A (ja) 1996-03-29 1997-10-14 Alps Electric Co Ltd 携帯電話機の受信回路用ｉｃ
US6230031B1 (en) 1997-03-31 2001-05-08 Oki Telecom, Inc. Power amplifying circuitry for wireless radio transceivers
US6236863B1 (en) 1997-03-31 2001-05-22 Oki Telecom, Inc. Comprehensive transmitter power control system for radio telephones
US5913154A (en) * 1997-04-18 1999-06-15 Ericsson, Inc. VSWR control technique for terminal products with linear modulation
US6049700A (en) * 1997-04-30 2000-04-11 Lucent Technologies Inc. Automatic volume adjustment in a wireless handset
US6185431B1 (en) 1997-06-18 2001-02-06 Oki Telecom, Inc. Mobile station closed loop output power stability system for weak signal conditions
GB9715278D0 (en) 1997-07-18 1997-09-24 Cambridge Consultants Signal processing system
US6141541A (en) * 1997-12-31 2000-10-31 Motorola, Inc. Method, device, phone and base station for providing envelope-following for variable envelope radio frequency signals
US6522194B1 (en) 2000-12-29 2003-02-18 Ericsson Inc. Envelope restoration scheme for linear high-efficiency power amplification
US6396341B1 (en) 2000-12-29 2002-05-28 Ericsson Inc. Class E Doherty amplifier topology for high efficiency signal transmitters
US6300830B1 (en) 2000-12-29 2001-10-09 Ericsson Inc Multiplexed input envelope restoration scheme for linear high-efficiency power amplification
US6472934B1 (en) 2000-12-29 2002-10-29 Ericsson Inc. Triple class E Doherty amplifier topology for high efficiency signal transmitters
KR100403814B1 (ko) * 2001-08-13 2003-10-30 삼성전자주식회사 멀티칩 모듈을 이용하여 디.씨 옵셋을 감소시킨 다이렉트컨버젼 수신기
US8107901B2 (en) * 2001-08-20 2012-01-31 Motorola Solutions, Inc. Feedback loop with adjustable bandwidth
GB0212740D0 (en) * 2002-05-31 2002-07-10 Hitachi Ltd Transmitter and wireless communication apparatus using the transmitter
US8461842B2 (en) 2003-07-18 2013-06-11 Mks Instruments, Inc. Methods and systems for stabilizing an amplifier
US7639015B2 (en) 2003-07-18 2009-12-29 Mks Instruments, Inc. Methods and systems for stabilizing an amplifier
KR101182905B1 (ko) * 2004-07-28 2012-09-13 엠케이에스 인스트루먼츠, 인코포레이티드 증폭기 안정화 방법 및 시스템
CN101136616B (zh) * 2006-08-30 2010-12-01 凌浩科技股份有限公司 西格玛-德尔塔型功率放大器及其调变方法
US7864882B2 (en) 2006-12-30 2011-01-04 Motorola Mobility, Inc. Method and apparatus for generating constant envelope modulation using a quadrature transmitter
US8422968B2 (en) * 2009-06-03 2013-04-16 Apple Inc. Wireless electronic device with open-loop and closed-loop output power control
US8670730B2 (en) * 2011-08-24 2014-03-11 Spectralux Corporation Power efficient radio frequency transmitter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238855A (en) * 1979-09-19 1980-12-09 Rca Corporation Parallel operation of multiple TV transmitters
JP2556888B2 (ja) * 1987-12-24 1996-11-27 日立金属株式会社 電気抵抗率バラツキの少ないセラミックス導電材料
JPH0466826U (es) * 1990-10-16 1992-06-12
US5066923A (en) * 1990-10-31 1991-11-19 Motorola, Inc. Linear transmitter training method and apparatus
US5134718A (en) * 1990-10-31 1992-07-28 Motorola, Inc. Fast phase shift adjusting method and device for linear transmitter
JP2826003B2 (ja) * 1991-11-29 1998-11-18 松下電器産業株式会社 送信出力制御回路
US5423082A (en) * 1993-06-24 1995-06-06 Motorola, Inc. Method for a transmitter to compensate for varying loading without an isolator

Also Published As

Publication number Publication date
GB2286302B (en) 1998-12-16
GB9401704D0 (en) 1994-03-23
US5467055A (en) 1995-11-14
GB2286302A (en) 1995-08-09
JP3223744B2 (ja) 2001-10-29
EP0665641A2 (en) 1995-08-02
DE69409939T2 (de) 1998-10-08
EP0665641A3 (en) 1996-02-14
CN1077745C (zh) 2002-01-09
CN1124423A (zh) 1996-06-12
DE69409939D1 (de) 1998-06-04
ATE165696T1 (de) 1998-05-15
EP0665641B1 (en) 1998-04-29
JPH07303016A (ja) 1995-11-14

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