SU531245A1 - Device for automatic frequency control - Google Patents

Device for automatic frequency control

Info

Publication number
SU531245A1
SU531245A1 SU2127524A SU2127524A SU531245A1 SU 531245 A1 SU531245 A1 SU 531245A1 SU 2127524 A SU2127524 A SU 2127524A SU 2127524 A SU2127524 A SU 2127524A SU 531245 A1 SU531245 A1 SU 531245A1
Authority
SU
USSR - Soviet Union
Prior art keywords
pulses
frequency control
automatic frequency
divider
reset
Prior art date
Application number
SU2127524A
Other languages
Russian (ru)
Inventor
Валерий Владимирович Абрамов
Анатолий Петрович Бондарев
Валерий Николаевич Радченко
Original Assignee
Предприятие П/Я В-2679
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Предприятие П/Я В-2679 filed Critical Предприятие П/Я В-2679
Priority to SU2127524A priority Critical patent/SU531245A1/en
Application granted granted Critical
Publication of SU531245A1 publication Critical patent/SU531245A1/en

Links

Landscapes

  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Description

Из напр жени  сети датчик 4 формирует опорные импульсы, направл ющиес  на формирователь 5. Отсюда импульсы сброса поступают на сброс делител  2, которьй делит частоту, используемую в устройстве. Импульсы переполнени  делител  2 поступают на один из входов блока формировани  сигнала рассогласовани  3 и на формирователь 6, формирующий импульсы запрета определенной длительности. На второй вход блока 3 поступают опорные импульсы с датчика 4. Сигнал рассогласовани  на выходе блока 3, пропорциональньш разнице частот опорных импульсов и импульсов переполнени  делител  2, подаетс  на генератор 1 дл  управлени  его частотой.From the mains voltage, sensor 4 generates reference pulses that are sent to the driver 5. From here, the reset pulses arrive at the reset of the divider 2, which divides the frequency used in the device. The overflow pulses of the divider 2 are fed to one of the inputs of the block of the formation of the error signal 3 and to the driver 6, which generates prohibition pulses of a certain duration. The second input of block 3 receives reference pulses from sensor 4. The error signal at the output of block 3, proportional to the difference between the frequencies of the reference pulses and the overflow pulses of divider 2, is fed to generator 1 to control its frequency.

Пока сигнал рассогласовани  на выходе блока 3 длиннее импульсов запрета на выходе формировател  6, сброс делител  2 не запрещаетс  и на него поступают импульсы сброса. Но как только сигнал рассогласовани  становитс  короче импульсов запрета, опорные импульсы с датчика 4 запрещаютс  импульсами запрета с формировател  6, и импульсы сброса с формировател  5 на делитель 2 не поступают. При этом сигнал ошибки в делителе 2 интегрируетс , благодар  чему сигнал опшбки резко ослабевает.As long as the error signal at the output of the block 3 is longer than the inhibit pulses at the output of the imaging unit 6, the reset of the divider 2 is not prohibited and it receives the reset pulses. But as soon as the error signal becomes shorter than the inhibit pulses, the reference pulses from the sensor 4 are inhibited by the inhibit pulses from the driver 6, and the reset pulses from the driver 5 are not transmitted to divider 2. At the same time, the error signal in divider 2 is integrated, whereby the signal of the error is sharply weakened.

Это устройство, как и известное устройствоThis device, like the known device

2, имеет ишрокую полосу захвата и синхронизма.2, has iskrokuyu band capture and synchronism.

Устройство дл  АПЧ может использоватьс  в An AFC device can be used in

цифровых вольтметрах, в частотомерах дл  измерени  низких частот, а также в синтезаторах частоты , дава  возможность измен ть частоту управл емого генератора в широких пределах и с небольшим шагом, и во многих устройствах радиосв зи. Во всех случа х устройство дп  АПЧ дает высокую точность измерени .digital voltmeters, frequency meters for measuring low frequencies, as well as frequency synthesizers, making it possible to vary the frequency of the controlled oscillator over a wide range and in small steps, and in many radio communication devices. In all cases, the device dp AFC provides high measurement accuracy.

Claims (2)

1. Патент Великобритании № 1136126, кл. 64И, 1968.1. Patent of Great Britain No. 1136126, cl. 64I, 1968. 2.Патент Великобритании № 1153201, кл. G4M, 1969.2. The UK patent number 1153201, cl. G4M, 1969.
SU2127524A 1975-04-14 1975-04-14 Device for automatic frequency control SU531245A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2127524A SU531245A1 (en) 1975-04-14 1975-04-14 Device for automatic frequency control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2127524A SU531245A1 (en) 1975-04-14 1975-04-14 Device for automatic frequency control

Publications (1)

Publication Number Publication Date
SU531245A1 true SU531245A1 (en) 1976-10-05

Family

ID=20617320

Family Applications (1)

Application Number Title Priority Date Filing Date
SU2127524A SU531245A1 (en) 1975-04-14 1975-04-14 Device for automatic frequency control

Country Status (1)

Country Link
SU (1) SU531245A1 (en)

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