ES438393A1 - Amplifier arrangement linearised by automatic correction - Google Patents

Amplifier arrangement linearised by automatic correction

Info

Publication number
ES438393A1
ES438393A1 ES438393A ES438393A ES438393A1 ES 438393 A1 ES438393 A1 ES 438393A1 ES 438393 A ES438393 A ES 438393A ES 438393 A ES438393 A ES 438393A ES 438393 A1 ES438393 A1 ES 438393A1
Authority
ES
Spain
Prior art keywords
amplifier
output
input
coupled
linearised
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
ES438393A
Other languages
Spanish (es)
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.)
GEN TELECOMUNICATIONS L G T LA
LGT Laboratoire General des Telecommunications
Original Assignee
GEN TELECOMUNICATIONS L G T LA
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 GEN TELECOMUNICATIONS L G T LA, LGT Laboratoire General des Telecommunications filed Critical GEN TELECOMUNICATIONS L G T LA
Publication of ES438393A1 publication Critical patent/ES438393A1/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)

Abstract

Improved amplifier device, comprising an amplifier, characterized in that it includes an attenuator whose input is coupled to the output of said amplifier, a first and a second transmission path whose inputs are respectively coupled to the input of said amplifier and to the output of said attenuator, a comparator having two inputs coupled, respectively, to the outputs of said transmission paths and a correction circuit with a correction input coupled to the output of said comparator, a signal input constituting the input of said device and an output coupled to the input of said amplifier, and the output of said amplifier constituting the output of said device. (Machine-translation by Google Translate, not legally binding)
ES438393A 1974-06-11 1975-06-10 Amplifier arrangement linearised by automatic correction Expired ES438393A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7420157A FR2275065A1 (en) 1974-06-11 1974-06-11 LINEARIZED AMPLIFIER DEVICE BY AUTOMATIC CORRECTION

Publications (1)

Publication Number Publication Date
ES438393A1 true ES438393A1 (en) 1977-01-16

Family

ID=9139889

Family Applications (1)

Application Number Title Priority Date Filing Date
ES438393A Expired ES438393A1 (en) 1974-06-11 1975-06-10 Amplifier arrangement linearised by automatic correction

Country Status (6)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2448750A1 (en) * 1979-02-09 1980-09-05 Labo Electronique Physique ELECTRONIC DEVICE FOR COMPENSATION FOR LINEARITY DEFECTS
FR2541058B1 (en) * 1983-02-11 1986-01-24 Thomson Csf HIGH FREQUENCY AMPLIFIER LINEARIZATION DEVICE WITH COMPLEX NON-LINEARITY COEFFICIENTS
FR2553947B1 (en) * 1983-10-21 1985-12-13 Lgt Lab Gen Telecomm DEVICE FOR AUTOMATICALLY PRE-CORRECTING NON-LINEARITIES IN A POWER AMPLIFIER AND TELEVISION TRANSMITTER COMPRISING SUCH A DEVICE
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 (en) * 1971-08-14 1976-03-11 Rohde & Schwarz, 8000 München Compensating circuit to minimise distortion effects in HF signals - has signal transmitted through parallel circuits one with phase shift

Also Published As

Publication number Publication date
GB1491798A (en) 1977-11-16
CA1048114A (en) 1979-02-06
DE2526064C2 (en) 1984-04-12
FR2275065B1 (en) 1978-01-13
DE2526064A1 (en) 1976-01-02
AR204865A1 (en) 1976-03-05
FR2275065A1 (en) 1976-01-09

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