DE1219589B - Variable capacitor - Google Patents

Variable capacitor

Info

Publication number
DE1219589B
DE1219589B DET24000A DET0024000A DE1219589B DE 1219589 B DE1219589 B DE 1219589B DE T24000 A DET24000 A DE T24000A DE T0024000 A DET0024000 A DE T0024000A DE 1219589 B DE1219589 B DE 1219589B
Authority
DE
Germany
Prior art keywords
stator
plate
plates
rotor
tuning
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.)
Pending
Application number
DET24000A
Other languages
German (de)
Inventor
Dipl-Ing Werner Bachnick
Rolf Wegener
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Priority to DET24000A priority Critical patent/DE1219589B/en
Priority to GB20263/64A priority patent/GB1062484A/en
Publication of DE1219589B publication Critical patent/DE1219589B/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/06—Transference of modulation using distributed inductance and capacitance
    • H03D9/0658—Transference of modulation using distributed inductance and capacitance by means of semiconductor devices having more than two electrodes
    • H03D9/0666—Transference of modulation using distributed inductance and capacitance by means of semiconductor devices having more than two electrodes using bipolar transistors
    • 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
    • H03B5/12—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 semiconductor device
    • H03B5/1203—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 semiconductor device the amplifier being a single transistor
    • 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
    • H03B5/12—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 semiconductor device
    • H03B5/1231—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 semiconductor device the amplifier comprising one or more bipolar transistors
    • 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
    • H03B5/12—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 semiconductor device
    • H03B5/1237—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 semiconductor device comprising means for varying the frequency of the generator
    • H03B5/124—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 semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
    • 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
    • H03B5/12—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 semiconductor device
    • H03B5/1237—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 semiconductor device comprising means for varying the frequency of the generator
    • H03B5/1256—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 semiconductor device comprising means for varying the frequency of the generator the means comprising a variable inductance
    • 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
    • H03B5/12—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 semiconductor device
    • H03B5/1296—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 semiconductor device the feedback circuit comprising a transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Description

Drehkondensator Die Erfindung betrifft einen Drehkondensator für Abstimmgeräte der Nachrichtentechnik. Bei Nachrichtengeräten besteht häufig die Aufgabe, getrennte Bereiche, z. B. die Fernsehbänder I/III und IV/V mit einem gemeinsamen Abstimmgerät zu überstreichen. Solche Abstimmgeräte sind bei Femsehempfängem z. B. unter dem Namen »Kombinationstuner« bekanntgeworden. Sie bestehen aber meist aus getrennten Abstimmteilen, die Über gemeinsame Bedienungselemente, z. B. Drucktasten, betätigt werden. Es ist auch bekannt, bei solchen Geräten beiden Abstimmteilen eine gemeinsame Hochfrequenzverstärkerstufe umschaltbar zuzuoidnen. Die bekannten Schaltungen -erfordern aber immer noch einen doppelten Aufwand an Abstimmelementen für die beiden Abstimmteile. Es ist auch bekannt, den Aufwand an Abstimmteilen dadurch herabzusetzen, daß die Abstimmung in beiden Bereichen drehwinkelmäßig aneinandergereiht wird und die Rotom, lattenpakete abwechselnd in getrennte Statorplattenpakete eintauchen. Diese bekannte Anordnung ist aber immer noch relativ aufwendig. Der Erfindung liegt die Aufgabe zugrunde, diesen Nachteil zu vermeiden. Außerdem soll ein getrennter Abgleich in beiden Abstimmbereichen ermöglicht werden.Variable capacitor The invention relates to a variable capacitor for tuning devices communications engineering. Communication devices often have the task of providing separate Areas, e.g. B. the TV bands I / III and IV / V with a common voting device to paint over. Such voting devices are at Femsehempfängem z. B. under the The name "combination tuner" became known. But they mostly consist of separate Tuning parts that use common controls, e.g. B. pushbuttons operated will. It is also known for both tuning parts to have a common tuning element in such devices High-frequency amplifier stage switchable zuoidnen. The known circuits require but still a double effort in tuning elements for the two tuning parts. It is also known to reduce the cost of tuning parts in that the Coordination in both areas is lined up in terms of angle of rotation and the Rotom, Alternately immerse the lath packs in separate stator plate packs. This well-known However, the arrangement is still relatively complex. The invention has the task based on avoiding this disadvantage. In addition, a separate comparison in both tuning areas are made possible.

Die Erfindung besteht bei einem Drehkondensator mit zwei um 1801 gegeneinander versetzten Statorplatten für zwei Abstimmbereiche, und einer gemeinsamen Rotorplatte darin, daß die Statorplatten in Richtung der Rotorachse so gegeneinander versetzt sind, daß sie die gemeinsame Rotorplatte einschließen, und das zwei weitere abgleichbare Rotorplatten auf beiden Seiten der gemeinsamen Rotorplatte in gleicher Winkellage mit dieser so angeordnet sind, daß sie die Statorplatten von außen einschließen.The invention consists in a rotary capacitor with two 1801 staggered stator for two tuning ranges, and a single rotor plate is that the stator plates are offset in the direction of the rotor axis against each other so as to sandwich the common rotor plate and the two other tunable rotor plates on both Sides of the common rotor plate are arranged in the same angular position with this so that they enclose the stator plates from the outside.

Zur näheren Erläuterung der Erfindung wird im folgenden ein Ausführungsbeispiel an Hand der Zeichnung beschrieben.To explain the invention in more detail, an exemplary embodiment is given below described on the basis of the drawing.

In F i g. 1 ist ein Drehkondensator gemäß der Erfindung dargestellt, auf dessen Welle 1 drei Rotorplatten2, 3 und 4 befestigt sind. Zwischen den Rotorplatten 2 und 3 ist eine ortsfeste Statorplatte 5 und zwischen den Rotorplatten 3 und 4 ist eine ortsfeste Statorplatte 6 angeordnet. Die Stator- und Rotorplatten sind so angeordnet, daß die Rotorplatte 3 die Kondensatorsysteme 2, 3, 5 von dem System 3, 4, 6 entkoppelt. Diese Kondensatorsysteme können somit mit einem Einstellmittel bezüglich zweier Stromkreise an den Klemmen 7 oder 8 verändert werden. Die äußeren Rotorplatten 2 und 4 sind gefiedert und ermöglichen so einen getrennten Abgleich des an den Klemmen 7 und 8 angeschlossenen Kreises. Besonders vorteilhaft ist ein solcher Drehkondensator in Anwendung auf Abstimmgeräte zur Abstimmung in getrennten Frequenzbereichen, z. B. kombinierten UHF/VHF-Geräten.In Fig. 1 shows a rotary capacitor according to the invention, on the shaft 1 of which three rotor plates 2, 3 and 4 are attached. A stationary stator plate 5 is arranged between the rotor plates 2 and 3 and a stationary stator plate 6 is arranged between the rotor plates 3 and 4. The stator and rotor plates are arranged so that the rotor plate 3 decouples the capacitor systems 2, 3, 5 of the system 3, 4,. 6 These capacitor systems can thus be changed with respect to two circuits at terminals 7 or 8 with one setting device. The outer rotor plates 2 and 4 are feathered and thus enable a separate adjustment of the circuit connected to the terminals 7 and 8. Such a variable capacitor is particularly advantageous when used on tuning devices for voting in separate frequency ranges, e.g. B. combined UHF / VHF devices.

F i g. 2 zeigt die Ausbildung eines Drehkondensators nach F i g. 1 für diesen Zweck. Dort ist der Drehkondensator in einem dezidichten Gehäuse 9 untergebracht. Die Statorelektrode 5 bildet ein Ende des Topfkreis-Innenleiters 10, dessen anderes Ende am Gehäuse 9 direkt befestigt ist. Eine weitete Stütze für den Innenleiter 10 ist ein Trimmerkondensator 11, dessen Kein vorzugsweise von außen bedient wird. Die weitere Statorelektrode 6 ist über eine einstellbare Induktivität 12 ebenfalls mit dem Gehäuse 9 verbunden, wobei die Induktivität 12 und Elektrode 6 zweckmäßig mittels eines Winkels 13 verbunden sind. Von den Rotorelektroden 2, 3 und 4 ist nur die mittlere Elektrode 3 gezeigt.F i g. 2 shows the design of a rotary capacitor according to FIG. 1 for this purpose. There the variable capacitor is housed in a decidently sealed housing 9. The stator electrode 5 forms one end of the cup- circle inner conductor 10, the other end of which is fastened directly to the housing 9. A further support for the inner conductor 10 is a trimmer capacitor 11, the none of which is preferably operated from the outside. The further stator electrode 6 is also connected to the housing 9 via an adjustable inductance 12, the inductance 12 and electrode 6 being suitably connected by means of an angle 13 . Of the rotor electrodes 2, 3 and 4, only the middle electrode 3 is shown.

Claims (3)

Patentansprüche: 1. Drehkondensator mit zwei um 180' gegeneinander versetzten Statorplatten für zwei Abstimmbereiche und einer gemeinsamen Rotorplatte, dadurch gekennzeichnet, daß die Statorplatten (5, 6) in Richtung der Rotorachse (1) so gegeneinander versetzt sind, daß sie die gemeinsame Rotorplatte (3) einschließen, und daß zwei weitere abgleichbare Rotorplatten (2, 4) auf beiden Seiten der gemeinsamen Rotorplatte (3) in gleicher Winkellage mit dieser so angeordnet sind, daß sie die Statorplatten (5, 6) von außen einschließen. Claims: 1. Rotary capacitor with two stator plates offset from one another by 180 ' for two tuning ranges and a common rotor plate, characterized in that the stator plates (5, 6) are offset from one another in the direction of the rotor axis (1) in such a way that they support the common rotor plate ( 3) include, and that two further adjustable rotor plates (2, 4) are arranged on both sides of the common rotor plate (3) in the same angular position with this so that they enclose the stator plates (5, 6) from the outside. 2. Drehkondensator nach Anspruch 1, dadurch gekennzeichnet, daß eine Statorplatte (5) Teil des Topfkreis-Innenleit.ers , (10) eines.". ezüneterwellengerätes ist.' 3. Drehkondensator nach Anspruch 2, dadurch gekennzeichnet, daß der Topfkreis-Innenleiter (10) und die Statorplatte (5) ein Stanzteil bilden. 2. Rotary capacitor according to claim 1, characterized in that a stator plate (5) is part of the cup circle-Innenleit.ers, (10) of a. ". 3. Rotary capacitor according to claim 2, characterized in that the cup circle inner conductor (10) and the stator plate (5) form a stamped part. In Betracht geZogene Druckschriften-Deutsches Gebrauchsmuster Nr. 1852 838; britische Patentschrift Nr. 708 638. Publications under consideration - German utility model No. 1852 838; British Patent No. 708,638.
DET24000A 1963-05-15 1963-05-15 Variable capacitor Pending DE1219589B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DET24000A DE1219589B (en) 1963-05-15 1963-05-15 Variable capacitor
GB20263/64A GB1062484A (en) 1963-05-15 1964-05-15 Improvements in or relating to variable tuning capacitances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET24000A DE1219589B (en) 1963-05-15 1963-05-15 Variable capacitor

Publications (1)

Publication Number Publication Date
DE1219589B true DE1219589B (en) 1966-06-23

Family

ID=7551257

Family Applications (1)

Application Number Title Priority Date Filing Date
DET24000A Pending DE1219589B (en) 1963-05-15 1963-05-15 Variable capacitor

Country Status (2)

Country Link
DE (1) DE1219589B (en)
GB (1) GB1062484A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB708638A (en) * 1950-08-12 1954-05-05 Oak Mfg Co High frequency tuning apparatus
DE1852838U (en) * 1962-03-17 1962-06-07 Christian Schwaiger Elektrotei COMBINED TUNING UNIT FOR VHF AND UHF.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB708638A (en) * 1950-08-12 1954-05-05 Oak Mfg Co High frequency tuning apparatus
DE1852838U (en) * 1962-03-17 1962-06-07 Christian Schwaiger Elektrotei COMBINED TUNING UNIT FOR VHF AND UHF.

Also Published As

Publication number Publication date
GB1062484A (en) 1967-03-22

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