GB613952A - Improvements in or relating to amplitude-limiters for electrical oscillations - Google Patents
Improvements in or relating to amplitude-limiters for electrical oscillationsInfo
- Publication number
- GB613952A GB613952A GB10603/46A GB1060346A GB613952A GB 613952 A GB613952 A GB 613952A GB 10603/46 A GB10603/46 A GB 10603/46A GB 1060346 A GB1060346 A GB 1060346A GB 613952 A GB613952 A GB 613952A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- anode
- resistor
- voltage
- anode current
- 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
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
- H03G11/004—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general using discharge tubes
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
613,952. Valve circuits for radio reception. PHILIPS LAMPS, Ltd. April 5, 1946, No. 10603. Convention date, Nov. 6, 1941. [Class 40 (v)] In an amplitude limiter in which grid current flows in the control grid circuit, means are provided to maintain a constant mean anode current in order to compensate for the reduction in conduction angle with increased signal amplitude. The limiter shown in Fig. 2 has a large resistor in the cathode circuit so that changes in mean anode current are offset by changes in grid bias. An A.G.C. voltage is provided through resistor 6. The circuit of Fig. 3 uses a pentode valve operated in that part of the characteristic where the anode current varies with anode voltage. The values of the anode resistor 10 and the screen resistor 9 are such that a decrease in mean anode current is offset by a rise in anode and screen grid voltage. The value to which the output is limited may be adjusted by controlling the bias voltage on the suppressor grid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL613952X | 1941-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB613952A true GB613952A (en) | 1948-12-07 |
Family
ID=19788188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10603/46A Expired GB613952A (en) | 1941-11-06 | 1946-04-05 | Improvements in or relating to amplitude-limiters for electrical oscillations |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB613952A (en) |
-
1946
- 1946-04-05 GB GB10603/46A patent/GB613952A/en not_active Expired
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