SU674187A1 - Device for automatic tuning of heterodyne frequency - Google Patents
Device for automatic tuning of heterodyne frequencyInfo
- Publication number
- SU674187A1 SU674187A1 SU772484913A SU2484913A SU674187A1 SU 674187 A1 SU674187 A1 SU 674187A1 SU 772484913 A SU772484913 A SU 772484913A SU 2484913 A SU2484913 A SU 2484913A SU 674187 A1 SU674187 A1 SU 674187A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- automatic
- unit
- control unit
- key
- matching
- Prior art date
Links
Landscapes
- Television Receiver Circuits (AREA)
Description
(54) УСТРОЙСТВО АВТОМАТИЧЕСКОЙ ПОДСТРОЙКИ ЧАСТОТЫ ГЕТЕРОДИНА(54) DEVICE FOR AUTOMATIC ADJUSTMENT OF HETERODINE FREQUENCY
issss sssSSs;; .;;:-: ,ai- личины , определ ющейс коэффициентом деле- I НИН импульса, и диод 9 заперт положительиым Жпр жением конденсатора Ш. На вход устройства поступают импульсы, которые преобразуют с в прКращвние управл ющего напр жени Пгу ф« 1а1ШШ|ЗШ го напр жени . При выборе программ открываетс транзистор И блока управлени 6, KQHденсатор 10, разделившись через открытый транзистор П, закорачивает через даэд, поступлени импульсов, и на выходе блока сО; тласовани 5 приращение упраф1 юц«его напр жени Uynp отсутствует. Таким образом уст1ройстВГ1«рШ:Ш|5Ш Ше т Ша1еШГ : После запирани транзистора 11 через диод 9 начинаетс зар д конденсатора 10 положитель ными импульсами. По йёрё зар да йовдексатора 10 диод 9 загофаетс , и на вход блока согласовани 5 йоступает нарктающие W ампли тУйе иййульсы, в результате чего по вл етс пр1фашё(ше управл ющего напр жени Ыупр и устройство включаетс . В тот мбШйТ, когда диод 9 полностью закрываетс , устройст1во возвращаетс в исходное состо ние. Врем , на коTc ioe отключаетс устройство, 011рёдел етс посто нной t RCr: .; Предложенное устройство устфайе тййше захват за несущую звука, который вйЭШЛен при переходе с режима Ручии «а Автомат и 1фисущ схеме телевизора Рубин-712. При переходе с режима Ручна на Автомат lib- ложителыолй всплеск напр жени на 12 шине значительно уменьшаетс до 0,25 и в первый момент через даод 9 MjtoJweHCWop JiO saKOif metCK аеаь поступлени илшульсов на вход блсмса сод-ласовши 5, чeмJэбeЖ«ШlaeтCиSключeшie устройстве с необ}йШ й 1 запаздыванием , болыоим д итеюности всплеска эдиф жени . V.. -....,:.. .. Таким , при переходе с режима Ручна на Автомат уйрШШГ- М i vi yyiay& ЩШ го уменьшени всплеска imiipi iaitt Шне и за счет того, что устройство 1включаетс issss sssSSs ;; . ;;::: a, the values of which are determined by the ratio of the I – NIN pulse, and the diode 9 are locked by the positive voltage of the capacitor W. The device receives impulses that transform into a control voltage Pf 1 1a1ShSh | ZS go voltage. When programs are selected, the transistor I of the control unit 6 opens, the KQH capacitor 10 separates through the open transistor II, shorting it through the daad pulse inputs, and at the output of the CO unit; The 5th increment of the control of its voltage Uynp is missing. Thus, the device is connected to the circuit. After the transistor 11 is locked through diode 9, the capacitor 10 begins to be charged with positive pulses. On the basis of the load of the 10 demodulator 10, the diode 9 is ignored, and the amplitude of the amplitude of the amplifiers arrives at the input of the matching unit 5, resulting in a fire (above the control voltage Iupr and the device is turned on. At that time, when the diode 9 completely closes , the device returns to its original state. Time for which the device is turned off, 011 is constant t RCr:.; The proposed device is the device that captures the sound carrier when switching from Manual mode to Automatic and recognizes the Ruby TV set 712. When lane During the run from the Manual to Automatic mode mode, the voltage spike on the 12 bus is significantly reduced to 0.25 and at the first moment through Daod 9 MjtoJweHCWop JiO sakoif metCK aea arrival of the pulses to the input of the brighter 5 at the same time as the 5 Jumble pattern The first one is a lag, a great moment of a spike rush. V. .......,: .. .. So, when switching from Manual mode to Automatic Splash, i vi yyiay & Shch iiipi iaitt splash due to the fact that the device 1 is included
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772484913A SU674187A1 (en) | 1977-04-29 | 1977-04-29 | Device for automatic tuning of heterodyne frequency |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772484913A SU674187A1 (en) | 1977-04-29 | 1977-04-29 | Device for automatic tuning of heterodyne frequency |
Publications (1)
Publication Number | Publication Date |
---|---|
SU674187A1 true SU674187A1 (en) | 1979-07-15 |
Family
ID=20708549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU772484913A SU674187A1 (en) | 1977-04-29 | 1977-04-29 | Device for automatic tuning of heterodyne frequency |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU674187A1 (en) |
-
1977
- 1977-04-29 SU SU772484913A patent/SU674187A1/en active
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