GB724282A - Improvements in or relating to pulse controlled oscillator arrangements - Google Patents
Improvements in or relating to pulse controlled oscillator arrangementsInfo
- Publication number
- GB724282A GB724282A GB1881052A GB1881052A GB724282A GB 724282 A GB724282 A GB 724282A GB 1881052 A GB1881052 A GB 1881052A GB 1881052 A GB1881052 A GB 1881052A GB 724282 A GB724282 A GB 724282A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- oscillator
- circuit
- pulse
- correct phase
- 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 6
- 230000001427 coherent effect Effects 0.000 abstract 1
- 230000003534 oscillatory effect Effects 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 230000002459 sustained 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
- H03L7/24—Automatic control of frequency or phase; Synchronisation using a reference signal directly applied to the generator
Landscapes
- Radar Systems Or Details Thereof (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
724,282. Valve generating circuits, pulse radar. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 2, 1953 [July 24, 1952], No. 18810/52. Classes 40 (6) and 40 (7). In an arrangement for producing oscillations the phase of which is controlled by periodic pulses of oscillation the pulses cause a first oscillator to be switched off and a second oscillator to be started in the correct phase, the first oscillator then being restarted in the correct phase by the second oscillator which is thereafter switched off. In the so-called radar " coherent " oscillator circuit shown, the occurrence of an R.F. synchronizing pulse at the grid of valve V1 causes the second valve V2R of a " flip-flop " circuit to be cut off. The pulse at the anode of V2R renders valve V3 of a cathode feedback oscillator circuit conductive and the.pulse at the cathode starts oscillation in the resonant circuit of the oscillator in the correct phase. The fall of the anode voltage of the oscillator valve V3 renders inoperative the valve V4 of a more stable oscillator, comprising valve V4 and circuit T.C. so that the existing oscillations in the circuit die out. At the same time the oscillatory output from the anode of valve V3 is fed to the left-hand end of the circuit T.C. to cause oscillation in the correct phase to commence. After a brief period the " flip-flop " returns to its original condition and so switches off V3 which thus switches on V4 causing oscillations to be sustained in the circuit T.C. An output is taken from a capacitive tap on this circuit to an amplifier valve V5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1881052A GB724282A (en) | 1953-04-02 | 1953-04-02 | Improvements in or relating to pulse controlled oscillator arrangements |
| US369191A US2738424A (en) | 1952-07-24 | 1953-07-20 | Pulse controlled oscillator arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1881052A GB724282A (en) | 1953-04-02 | 1953-04-02 | Improvements in or relating to pulse controlled oscillator arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB724282A true GB724282A (en) | 1955-02-16 |
Family
ID=10118794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1881052A Expired GB724282A (en) | 1952-07-24 | 1953-04-02 | Improvements in or relating to pulse controlled oscillator arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB724282A (en) |
-
1953
- 1953-04-02 GB GB1881052A patent/GB724282A/en not_active Expired
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