GB926081A - Improvements and simplification in linear power amplifier operation - Google Patents
Improvements and simplification in linear power amplifier operationInfo
- Publication number
- GB926081A GB926081A GB3936161A GB3936161A GB926081A GB 926081 A GB926081 A GB 926081A GB 3936161 A GB3936161 A GB 3936161A GB 3936161 A GB3936161 A GB 3936161A GB 926081 A GB926081 A GB 926081A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rectifying
- screen
- voltage
- supply
- power amplifier
- 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
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/02—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with tubes only
-
- 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
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
926,081. Valve supply circuits. G. R. B. THORNLEY. Dec. 19, 1961 [Nov. 3, 1961], No. 39361/61. Class 40 (6). In a linear power amplifier using a pentode or tetrode having grid bias of constant or zero value, the sole screen supply is obtained by rectification of the input or output signals. As shown in Fig. 3, the audio input signal is rectified by a thermionic or semi-conductor diode R to provide a screen voltage, the value of which is dependent on the level of input signals. Fig. 5 shows a radio frequency power amplifier in which the screen supply is derived by rectifying, at R, the output. A low-pass filter is provided to isolate harmonics introduced by rectification. Fig. 2 (not shown) relates to a circuit similar to that shown in Fig. 5, but wherein the screen supply is derived by rectifying the input signal. Fig. 4 (not shown) relates to a push-pull audio-amplifier in which the screen voltage is obtained by rectifying the voltage across an auxiliary winding on the output transformer. A constant value of grid bias may be obtained by rectifying the heater supply voltage. Specification 742,684 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3936161A GB926081A (en) | 1961-11-03 | 1961-11-03 | Improvements and simplification in linear power amplifier operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3936161A GB926081A (en) | 1961-11-03 | 1961-11-03 | Improvements and simplification in linear power amplifier operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB926081A true GB926081A (en) | 1963-05-15 |
Family
ID=10409139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3936161A Expired GB926081A (en) | 1961-11-03 | 1961-11-03 | Improvements and simplification in linear power amplifier operation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB926081A (en) |
-
1961
- 1961-11-03 GB GB3936161A patent/GB926081A/en not_active Expired
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