ES438393A1 - Amplifier arrangement linearised by automatic correction - Google Patents
Amplifier arrangement linearised by automatic correctionInfo
- 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
Links
- 230000005540 biological transmission Effects 0.000 abstract 2
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)
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)
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)
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 |
-
1974
- 1974-06-11 FR FR7420157A patent/FR2275065A1/en active Granted
-
1975
- 1975-01-01 AR AR25915375A patent/AR204865A1/en active
- 1975-06-10 GB GB2490775A patent/GB1491798A/en not_active Expired
- 1975-06-10 ES ES438393A patent/ES438393A1/en not_active Expired
- 1975-06-10 CA CA228,923A patent/CA1048114A/en not_active Expired
- 1975-06-11 DE DE19752526064 patent/DE2526064C2/en not_active Expired
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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