ES237809A1 - Improvements in or relating to automatic frequency controlling systems - Google Patents
Improvements in or relating to automatic frequency controlling systemsInfo
- Publication number
- ES237809A1 ES237809A1 ES0237809A ES237809A ES237809A1 ES 237809 A1 ES237809 A1 ES 237809A1 ES 0237809 A ES0237809 A ES 0237809A ES 237809 A ES237809 A ES 237809A ES 237809 A1 ES237809 A1 ES 237809A1
- Authority
- ES
- Spain
- Prior art keywords
- generator
- frequency
- oscillations
- periodic
- circuit
- 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
- 230000010355 oscillation Effects 0.000 abstract 5
- 230000000737 periodic effect Effects 0.000 abstract 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Improvements in automatic frequency control systems, characterized by being prepared to produce a control signal to regulate an oscillation generator depending on the degree of lack of synchronization between the oscillations produced by said generator and those of a reference frequency of said circuit The control system comprises means operated at the oscillation frequency of the generator to limit the reference oscillations in order to produce periodic impulse signals of a magnitude dependent on the instantaneous amplitudes of the reference oscillations at the limiting moments and means to apply said periodic signals. impulses to a circuit comprising a series accumulation capacitor with a resistor shuntada by a pair of unilaterally condensed devices of opposite polarities these devices are polarized in such a way that they are not conductive when the applied periodic pulse signals correspond n to quasi-synchronism between the frequency of the reference generator. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB35406/56A GB818781A (en) | 1956-11-20 | 1956-11-20 | Improvements in or relating to automatic frequency controlling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES237809A1 true ES237809A1 (en) | 1958-04-01 |
Family
ID=10377367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0237809A Expired ES237809A1 (en) | 1956-11-20 | 1957-09-27 | Improvements in or relating to automatic frequency controlling systems |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE562554A (en) |
| DE (1) | DE1080629B (en) |
| ES (1) | ES237809A1 (en) |
| FR (1) | FR1186070A (en) |
| GB (1) | GB818781A (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL84051C (en) * | 1942-07-11 | |||
| BE488124A (en) * | 1948-03-27 | |||
| NL152620B (en) * | 1950-03-29 | Pont A Mousson | WELL COVER CONSTRUCTION. | |
| GB714442A (en) * | 1951-12-24 | 1954-08-25 | Pye Ltd | Automatic frequency control circuits |
-
0
- BE BE562554D patent/BE562554A/xx unknown
-
1956
- 1956-11-20 GB GB35406/56A patent/GB818781A/en not_active Expired
-
1957
- 1957-09-27 ES ES0237809A patent/ES237809A1/en not_active Expired
- 1957-11-15 FR FR1186070D patent/FR1186070A/en not_active Expired
- 1957-11-16 DE DEM35933A patent/DE1080629B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB818781A (en) | 1959-08-26 |
| FR1186070A (en) | 1959-08-13 |
| DE1080629B (en) | 1960-04-28 |
| BE562554A (en) |
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