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EP0017899A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Controllable oscillator grouping

Assignee: Siemens AG
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Filing: 1980-04-08
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Granted: —
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Expires: 2000-04-08
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Abstract

Abstract Translated from German Die Erfindung betrifft eine breitbandig linear in ihrer Frequenz variierbare Oszillatoranordnung für Frequenzmodulatoren und -demodulatoren, bei der zwei ECO-Oszillator-Dreipunktschaltungen (O') dadurch zu einer Gegentaktschaltungsanordnung zusammengefügt sind, daß die Ausgangsanschlüsse der ECO-Oszillator-Dreipunktschaltungen gleichstrommäßig über den Mittelabgriff (x) der Primärwicklung eines gemeinsamen Ausgangsübertragers (Üa) mit Bezugspotential in Verbindung stehen, daß ferner der den beiden Dreipunktschaltungen gemeinsame frequenzbestimmende Schwingkreis zwei gegensinnig über die Schwingkreisinduktivität (L) gleichstrommäßig zusammengeschaltete Varaktordioden (Cd) aufweist, die an ihren hierzu entgegengesetzten Anschlüssen mit jeweils einer der beiden ECO-Oszillator-Dreipunktschaltungen verbunden sind, und daß die Schwingkreisinduktivität zur Realisierung des Steuereingangs einen Mittelabgriff aufweist. The invention relates to a broadband linearly variable frequency oscillator arrangement for frequency modulators and demodulators, in which two three-point ECO oscillator circuits (O ') are combined to form a push-pull circuit arrangement in that the output connections of the three-point ECO oscillator circuits have a direct current via the center tap ( x) the primary winding of a common output transformer (Üa) is connected to reference potential, that furthermore the frequency-determining resonant circuit common to the two three-point circuits has two varactor diodes (Cd) connected in opposite directions via the resonant circuit inductance (L), each of which has one connection at their opposite connections of the two ECO oscillator three-point circuits are connected, and that the resonant circuit inductance has a center tap for realizing the control input.

Inventors

  • 👤 Rudolf Heise

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 23:34
CPC Classifications
H; H03; H03C; H03C3/00; H03C3/10; H03C3/12; H03C3/22; H03C3/222; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1206; H03B5/1218; H03B5/1231; H03B5/1237; H03B5/1256; H03B2200/00; H03B2200/003; H03B2200/004; H03B2200/006; H03B2200/0092; H03B2200/0098; H03B2201/00; H03B2201/02; H03B2201/0208

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

US3403354A Cited
DE1303540B Cited
FR1553034A Cited

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