GB532793A - Improvements in or relating to amplifiers with negative feedback - Google Patents
Improvements in or relating to amplifiers with negative feedbackInfo
- Publication number
- GB532793A GB532793A GB26271/39A GB2627139A GB532793A GB 532793 A GB532793 A GB 532793A GB 26271/39 A GB26271/39 A GB 26271/39A GB 2627139 A GB2627139 A GB 2627139A GB 532793 A GB532793 A GB 532793A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impedance
- amplifiers
- output
- sept
- negative 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
- H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
532,793. Valve amplifying circuits. SOC. INDUSTRIELLE DES PROCEDES LOTH. Sept. 20, 1939, Nos. 26271 and 26272. Convention dates, Sept. 23, 1938 and Oct. 21, 1938. [Class 40 (v)] In a multi-stage amplifier wherein at least two of the stages that are bridged by negative feedback circuit are coupled by means of a cathode impedance. The Figure shows a push-pull amplifier with the output stage fed from cathode resistances 6 and with feedback applied from the output to the input. The resistances 6 may be arranged in series with inductance so as to reduce the voltage drop while maintaining the impedance large compared with the valve output impedance. The intervalve couplings are preferably such as to ensure constant phase displacement for all working frequencies. The invention is particularly applicable to high power class-B amplifiers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL532793X | 1938-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB532793A true GB532793A (en) | 1941-01-30 |
Family
ID=19787158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26271/39A Expired GB532793A (en) | 1938-09-23 | 1939-09-20 | Improvements in or relating to amplifiers with negative feedback |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB532793A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588858A (en) * | 1981-08-19 | 1986-05-13 | Texas Instruments Incorporated | Differential amplifiers and method of differentially driving a two-wire line circuit |
-
1939
- 1939-09-20 GB GB26271/39A patent/GB532793A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4588858A (en) * | 1981-08-19 | 1986-05-13 | Texas Instruments Incorporated | Differential amplifiers and method of differentially driving a two-wire line circuit |
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