SU1133667A1 - Automatic frequency control circuit - Google Patents
Automatic frequency control circuit Download PDFInfo
- Publication number
- SU1133667A1 SU1133667A1 SU833561431A SU3561431A SU1133667A1 SU 1133667 A1 SU1133667 A1 SU 1133667A1 SU 833561431 A SU833561431 A SU 833561431A SU 3561431 A SU3561431 A SU 3561431A SU 1133667 A1 SU1133667 A1 SU 1133667A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- input
- series
- output
- phase detector
- automatic frequency
- Prior art date
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- Superheterodyne Receivers (AREA)
Abstract
УСТРОЙСТВО АВТОМАТИЧЕСКОЙ ПОДСТРОЙКИ ЧАСТОТЫ, содержащее соединенные последовательно входной смеситель , усилитель промежуточной частоты , видеодетектор, амплитудный селектор, фазовый детектор, а также соединенные последовательно фильтр нижних частот и гетеродин, выход которого подключен к другому входу входного смесител , о т л и ч а ющ е е с тем, что, с целью повышени точности, между выходом усилител промежуточной частоты и другим входом фазового детектора включены последовательно соединенные формирователь импульсов и делитель частоты, а выход фазового детектора соединен с входом фильтра нижних частот. i ь СЛ СAUTOMATIC FREQUENCY DEVICE, containing an input mixer connected in series, an intermediate frequency amplifier, a video detector, an amplitude selector, a phase detector, as well as a low-pass filter connected in series and a local oscillator output of which is connected to another input of the input mixer This is because, in order to increase accuracy, between the output of the intermediate frequency amplifier and the other input of the phase detector are connected in series the pulse generator and the spruce frequency, and the output of the phase detector is coupled to an input of a lowpass filter. i СЛ С
Description
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU833561431A SU1133667A1 (en) | 1983-03-22 | 1983-03-22 | Automatic frequency control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU833561431A SU1133667A1 (en) | 1983-03-22 | 1983-03-22 | Automatic frequency control circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1133667A1 true SU1133667A1 (en) | 1985-01-07 |
Family
ID=21052714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU833561431A SU1133667A1 (en) | 1983-03-22 | 1983-03-22 | Automatic frequency control circuit |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1133667A1 (en) |
-
1983
- 1983-03-22 SU SU833561431A patent/SU1133667A1/en active
Non-Patent Citations (1)
Title |
---|
1. Ель шкевич С.А. Автоматическое управление в телевизорах. М., Энерги , 1968, с. 7, рис.1.2, 2, Патент US № 3049587, кл, 178-5.8, 1962 (прототип), * |
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