CA1048114A - Amplifier arrangement linearised by automatic correction - Google Patents

Amplifier arrangement linearised by automatic correction

Info

Publication number
CA1048114A
CA1048114A CA228,923A CA228923A CA1048114A CA 1048114 A CA1048114 A CA 1048114A CA 228923 A CA228923 A CA 228923A CA 1048114 A CA1048114 A CA 1048114A
Authority
CA
Canada
Prior art keywords
input
amplifier
output
arrangement
signal
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
Application number
CA228,923A
Other languages
English (en)
French (fr)
Inventor
Claude Cluniat
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.)
LGT Laboratoire General des Telecommunications
Original Assignee
LGT Laboratoire General des Telecommunications
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 LGT Laboratoire General des Telecommunications filed Critical LGT Laboratoire General des Telecommunications
Application granted granted Critical
Publication of CA1048114A publication Critical patent/CA1048114A/en
Expired 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
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
CA228,923A 1974-06-11 1975-06-10 Amplifier arrangement linearised by automatic correction Expired CA1048114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7420157A FR2275065A1 (fr) 1974-06-11 1974-06-11 Dispositif amplificateur linearise par correction automatique

Publications (1)

Publication Number Publication Date
CA1048114A true CA1048114A (en) 1979-02-06

Family

ID=9139889

Family Applications (1)

Application Number Title Priority Date Filing Date
CA228,923A Expired CA1048114A (en) 1974-06-11 1975-06-10 Amplifier arrangement linearised by automatic correction

Country Status (6)

Country Link
AR (1) AR204865A1 (es)
CA (1) CA1048114A (es)
DE (1) DE2526064C2 (es)
ES (1) ES438393A1 (es)
FR (1) FR2275065A1 (es)
GB (1) GB1491798A (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448750A1 (fr) * 1979-02-09 1980-09-05 Labo Electronique Physique Dispositif electronique de compensation de defauts de linearite
FR2541058B1 (fr) * 1983-02-11 1986-01-24 Thomson Csf Dispositif de linearisation d'amplificateur haute frequence a coefficients de non-linearite complexes
FR2553947B1 (fr) * 1983-10-21 1985-12-13 Lgt Lab Gen Telecomm Dispositif de precorrection automatique des non-linearites dans une chaine d'amplification de puissance et emetteur de television comportant un tel dispositif
GB2164823A (en) * 1984-09-17 1986-03-26 Philips Electronic Associated Television transmitter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2140851B2 (de) * 1971-08-14 1976-03-11 Rohde & Schwarz, 8000 München Schaltung zum erzeugen einer vorbestimmten, zur kompensation der nichtlinearitaeten eines nachgeschalteten verstaerkers dienenden und hierzu komplementaeren vorverzerrung eines hochfrequenz-, insbesondere eines fernseh- signals

Also Published As

Publication number Publication date
FR2275065B1 (es) 1978-01-13
DE2526064C2 (de) 1984-04-12
ES438393A1 (es) 1977-01-16
AR204865A1 (es) 1976-03-05
DE2526064A1 (de) 1976-01-02
FR2275065A1 (fr) 1976-01-09
GB1491798A (en) 1977-11-16

Similar Documents

Publication Publication Date Title
US4392252A (en) Signal transmission system comprising a monolinearity product precorrection device
US4554514A (en) Predistortion circuit with feedback
US4670789A (en) Television transmitter
US5323119A (en) Amplifier having feed forward cancellation
US5155448A (en) Feed-forward amplifier having increased compression point
US5311143A (en) RF amplifier bias control method and apparatus
EP0411180B1 (en) Feed forward distortion correction circuit
EP0603867B1 (en) Distortion compensating circuit of high-frequency power amplifier
US6930549B2 (en) Variable gain amplifier for use in communications
US5963352A (en) Linearization enhanced operation of single-stage and dual-stage electro-optic modulators
CA2021622C (en) Predistortion equalizer with resistive combiners and dividers
US5576660A (en) Broadband predistortion linearizer with automatic temperature compensation for microwave amplifiers
AU761636B2 (en) Non-linear distortion generator
EP0860940A2 (en) Linearization of an amplifier employing modified feedforward correction
GB2239755A (en) Compensation for non-linear effects on phase and amplitude in amplifier
KR19980703797A (ko) 무선 주파수 시스템에서 에러 보정 증폭을 수행하기 위한 장치 및 방법
GB2238197A (en) Feed-forward amplifier with amplitude and phase pre-correction
US20050046477A1 (en) Power amplifier
US20020021173A1 (en) Non-linear distortion compensating apparatus
JP2834304B2 (ja) 線形電力増幅回路
CA1048114A (en) Amplifier arrangement linearised by automatic correction
US4772855A (en) Linearizer for microwave power amplifiers
US20040085127A1 (en) Power amplifying method, power amplifier, and communication apparatus
CA1235797A (en) Device for the automatic precorrection of non- linearities in a power amplification chain for a television transmitter
US4298841A (en) Signal envelope detecting system