GB996336A - Improvements relating to frequency controlled circuit arrangements for the generation of oscillations - Google Patents
Improvements relating to frequency controlled circuit arrangements for the generation of oscillationsInfo
- Publication number
- GB996336A GB996336A GB1100462A GB1100462A GB996336A GB 996336 A GB996336 A GB 996336A GB 1100462 A GB1100462 A GB 1100462A GB 1100462 A GB1100462 A GB 1100462A GB 996336 A GB996336 A GB 996336A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- oscillations
- oscillator
- march
- frequency
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/10—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only
- H03K4/12—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements vacuum tubes only in which a sawtooth voltage is produced across a capacitor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
- H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising
- H04N5/126—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising whereby the synchronisation signal indirectly commands a frequency generator
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
996,336. Reactance valve circuits; automatic phase control systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. March 22, 1962 [March 22, 1961], No. 11004/62 Headings H3A and H3R. An oscillator comprises the first two grids and cathode of a tube and from across an anode output resistor 20 a voltage is fed back through a capacitor 21 to one side of the tuned circuit 2, 22 to produce a phase quadrature component of feedback to the first grid of magnitude determined by a voltage UR applied to another grid, controlling the oscillator frequency. The circuit further ensures that increase of feedback increases the damping of the oscillator and therefore the control sensitivity. The input UR may be derived from a phase discriminator fed with incoming sync and television receiver line flyback pulses so that the frequency and phase of the line scan sawtooth waves produced by a triode 9 from the oscillations may be stabilized.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET19837A DE1206950B (en) | 1961-03-22 | 1961-03-22 | Circuit arrangement for the generation of sinusoidal vibrations for television receivers working with saw tooth generators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB996336A true GB996336A (en) | 1965-06-23 |
Family
ID=7549465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1100462A Expired GB996336A (en) | 1961-03-22 | 1962-03-22 | Improvements relating to frequency controlled circuit arrangements for the generation of oscillations |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1206950B (en) |
GB (1) | GB996336A (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2378245A (en) * | 1942-03-17 | 1945-06-12 | Radio Patents Corp | Variable frequency oscillator |
BE517107A (en) * | 1951-06-27 | |||
US2790147A (en) * | 1953-10-23 | 1957-04-23 | Vitro Corp | Reactance tube circuitry |
-
1961
- 1961-03-22 DE DET19837A patent/DE1206950B/en active Pending
-
1962
- 1962-03-22 GB GB1100462A patent/GB996336A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1206950B (en) | 1965-12-16 |
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