GB1148748A - Converter with a field effect element - Google Patents
Converter with a field effect elementInfo
- Publication number
- GB1148748A GB1148748A GB2657266A GB2657266A GB1148748A GB 1148748 A GB1148748 A GB 1148748A GB 2657266 A GB2657266 A GB 2657266A GB 2657266 A GB2657266 A GB 2657266A GB 1148748 A GB1148748 A GB 1148748A
- Authority
- GB
- United Kingdom
- Prior art keywords
- control signal
- field effect
- lead
- signal
- amplitude
- 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
- 230000005669 field effect Effects 0.000 title abstract 3
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/36—Amplitude modulation by means of semiconductor device having at least three electrodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
- H03F3/387—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only
- H03F3/393—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with semiconductor devices only with field-effect devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
- H03C2200/0037—Functional aspects of modulators
- H03C2200/0079—Measures to linearise modulation or reduce distortion of modulation characteristics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplitude Modulation (AREA)
Abstract
1,148,748. Amplitude modulation. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 14 June, 1966 [15 June, 1965], No. 26572/66. Heading H3R. A circuit for varying the amplitude of an A.C. signal in accordance with a control signal inchides at least one field effect transistor 17. The A.C. signal is applied between the source and drain electrodes via a transformer 9, a resistor 16 being included to introduce asymmetry into the circuit. With no control signal on lead 12, the resistor 26 and capacitors 24, 25 are adjusted to give no output on lead 27. Application of a control signal on lead 12 then produces an A.C. output having its amplitude dependent on that of the control signal. In a modification, Fig. 4 (not shown), two field effect transistors are used in push-pull.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR20793A FR1447325A (en) | 1965-06-15 | 1965-06-15 | Field Effect Element Converter Circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1148748A true GB1148748A (en) | 1969-04-16 |
Family
ID=8581991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2657266A Expired GB1148748A (en) | 1965-06-15 | 1966-06-14 | Converter with a field effect element |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1447325A (en) |
GB (1) | GB1148748A (en) |
-
1965
- 1965-06-15 FR FR20793A patent/FR1447325A/en not_active Expired
-
1966
- 1966-06-14 GB GB2657266A patent/GB1148748A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1447325A (en) | 1966-07-29 |
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