GB1271509A - Improvements in or relating to amplifier arrangements - Google Patents
Improvements in or relating to amplifier arrangementsInfo
- Publication number
- GB1271509A GB1271509A GB3726768A GB3726768A GB1271509A GB 1271509 A GB1271509 A GB 1271509A GB 3726768 A GB3726768 A GB 3726768A GB 3726768 A GB3726768 A GB 3726768A GB 1271509 A GB1271509 A GB 1271509A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amplifier
- relating
- impedance
- amplifier arrangements
- feedback
- 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
Classifications
-
- 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
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
-
- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/347—Negative-feedback-circuit arrangements with or without positive feedback using transformers
-
- 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
- H03F1/56—Modifications of input or output impedances, not otherwise provided for
- H03F1/565—Modifications of input or output impedances, not otherwise provided for using inductive elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
1,271,509. Amplifiers. PLESSEY CO. Ltd. 4 Aug., 1969 [5 Aug., 1968], No. 37267/68. Heading H3W. In a feedback amplifier the effective impedance presented by the feedback impedance R 2 to the output of the amplifier A is reduced by means of an impedance transforming networkas comprising an autotransformer T interposed between the output of the amplifier and the feedback impedance.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3726768A GB1271509A (en) | 1968-08-05 | 1968-08-05 | Improvements in or relating to amplifier arrangements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3726768A GB1271509A (en) | 1968-08-05 | 1968-08-05 | Improvements in or relating to amplifier arrangements |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1271509A true GB1271509A (en) | 1972-04-19 |
Family
ID=10395075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3726768A Expired GB1271509A (en) | 1968-08-05 | 1968-08-05 | Improvements in or relating to amplifier arrangements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1271509A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2466746A1 (en) * | 2010-12-16 | 2012-06-20 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Low noise amplifier |
-
1968
- 1968-08-05 GB GB3726768A patent/GB1271509A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2466746A1 (en) * | 2010-12-16 | 2012-06-20 | TELEFONAKTIEBOLAGET LM ERICSSON (publ) | Low noise amplifier |
WO2012080126A1 (en) * | 2010-12-16 | 2012-06-21 | Telefonaktiebolaget L M Ericsson (Publ) | Low noise amplifier |
US8965322B2 (en) | 2010-12-16 | 2015-02-24 | Telefonaktiebolaget L M Ericsson (Publ) | Low noise amplifier |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1008936A (en) | Amplifier with input and output impedance match | |
GB1434971A (en) | Gain control circuit | |
GB1204617A (en) | Circuit providing a floating output | |
GB1266710A (en) | ||
GB1513828A (en) | Variable gain amplifiers | |
AU4430372A (en) | Improvements in or relating to high frequency amplifier arrangements | |
GB1271509A (en) | Improvements in or relating to amplifier arrangements | |
ES382017A1 (en) | Difference amplifier | |
GB988369A (en) | Improvements in or relating to power amplifiers | |
FR2109514A6 (en) | ||
CA941916A (en) | Variable gain amplifier | |
GB1198100A (en) | Signal Amplifying Arrangement | |
GB1157152A (en) | Low Noise Parametric System | |
GB1234791A (en) | Improvements in apparatus for distance measurement or control | |
GB1227105A (en) | ||
JPS5210051A (en) | Feed forward amplifier | |
GB1329384A (en) | Colour grading of products | |
JPS5210050A (en) | Linear amplifier | |
JPS51140461A (en) | Linear output amplifier with no distortion at low level of signal | |
GB1273988A (en) | Improvements in and relating to electric measuring apparatus | |
GB1266223A (en) | ||
GB771945A (en) | Improvements in or relating to transistor amplifiers | |
CA632285A (en) | Linear low-input r.f. impedance amplifier | |
GB1156728A (en) | Improvements in or relating to Tone Control Circuit Arrangements. | |
JPS51150256A (en) | Push-pull amplifier |