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DE445212C - Coupling arrangement in circuits with frequency transformers - Google Patents

Coupling arrangement in circuits with frequency transformers

Info

Publication number
DE445212C
DE445212C DET28327D DET0028327D DE445212C DE 445212 C DE445212 C DE 445212C DE T28327 D DET28327 D DE T28327D DE T0028327 D DET0028327 D DE T0028327D DE 445212 C DE445212 C DE 445212C
Authority
DE
Germany
Prior art keywords
circuits
coupling arrangement
frequency
frequency transformers
terminals
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
Application number
DET28327D
Other languages
German (de)
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 AG
Original Assignee
Telefunken AG
Publication date
Priority to DET28327D priority Critical patent/DE445212C/en
Application granted granted Critical
Publication of DE445212C publication Critical patent/DE445212C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/03—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source using non-linear inductance

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Superheterodyne Receivers (AREA)

Description

Bei Schaltungen zur Hochfrequenzerzeugung unter Anwendung von Frequenzwandlern ist es wesentlich, die Nutzfreguenz mit möglichst gutem Wirkungsgrade auf die Antenne bzw. einen Zwischenkreis zu übertragen und gleichzeitig die Grundfrequenz von der Antenne oder' dem Zwischenkreis fernzuhalten. Die vorliegende Erfindung sieht zu diesem Zweck eine Anordnung zur Kopplung vor, welche ίο darin besteht, daß die Antenne oder gegebenenfalls der Zwischenkreisi von einem Wechselstromwiderstand abgezweigt wird, welcher aus einer Selbstinduktionsepule und einem Kondensator besteht, wobei die Spule und der Kondensator so bemessen ist, daß sie einen Kurzschluß für die Grundfrequenz bilden.In circuits for high frequency generation using frequency converters, it is It is essential to have the useful frequency with the best possible efficiency on the antenna or to transmit an intermediate circuit and at the same time the basic frequency of the antenna or 'keep away from the intermediate circuit. The present invention seeks to that end an arrangement for coupling before which ίο consists in that the antenna or possibly the intermediate circuit is branched off from an alternating current resistor, which consists of a self-induction coil and a capacitor, the coil and the Capacitor is dimensioned so that they form a short circuit for the fundamental frequency.

Zwei Ausführungsbeispiele der Erfindung sind in Abb.i und 2 angegeben- Wie aus der Abb. ι zu ersehen ist, ist die Antenne mit dem Frequenzumformerkreis dadurch gekoppelt, daß sie an die Enden des Zweiges M, N angeschlossen ist. Wird der Zweig M, N auf die Grundwelle abgestimmt, so bildet er einen Kurzschluß für 'dieselbe, und es entsteht an den Klerpmen M, N keine Spannung der as Grundfrequenz. Für die Nutzfrequenz dagegen stellt dieser Zweig einen hohen induktiven Widerstand dar, wqdurch die Energie der Nutzfrequenz auf die Antenne übertragen wird. In Abb. 2 ist eine Kopplung nach der Erfindung für die Kopplung eines Zwischenkreises S mit dem Frequenzumformerkreise angewendet.Two embodiments of the invention are indicated in Fig.i and 2. As can be seen from Fig. Ι, the antenna is coupled to the frequency converter circuit in that it is connected to the ends of the branch M, N. If the branch M, N is tuned to the fundamental wave, it forms a short circuit for the same, and no voltage of the fundamental frequency arises at the terminals M, N. For the useful frequency, on the other hand, this branch represents a high inductive resistance, which is transmitted to the antenna by the energy of the useful frequency. In Fig. 2, a coupling according to the invention for the coupling of an intermediate circuit S is used with the frequency converter circuits.

Claims (1)

Patentanspruch:Claim: Kopplungsanordnung bei Schaltungen mit Frequenztransformatoren, dadurch gekennzeichnet, daß die Antenne bzw. ein Zwischenkreis nicht direkt von denKlemmen des Frequenzwandlers, sondern von den Klemmen eines Wechselstromwiderstandes abgezweigt ist, der mit dem Frequenzwandler in Reihe geschaltet ist und aus einer Serienschaltung von kapazitivem und induktivem Widerstand gebildet wird, die ganz oder nahezu auf die Grundwelle abgestimmt ist.Coupling arrangement in circuits with frequency transformers, characterized in that that the antenna or an intermediate circuit is not directly connected to the terminals of the frequency converter, but is branched off from the terminals of an alternating current resistor connected to the frequency converter is connected in series and is formed from a series circuit of capacitive and inductive resistance, which is completely or nearly matched to the fundamental wave. *J Von dem Patentsucher ist als der Erfinder angegeben worden:* J The following has been indicated by the patent seeker as the inventor: Walter Schäfer in Berlin.Walter Schäfer in Berlin.
DET28327D Coupling arrangement in circuits with frequency transformers Expired DE445212C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET28327D DE445212C (en) Coupling arrangement in circuits with frequency transformers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET28327D DE445212C (en) Coupling arrangement in circuits with frequency transformers

Publications (1)

Publication Number Publication Date
DE445212C true DE445212C (en) 1927-06-01

Family

ID=7554090

Family Applications (1)

Application Number Title Priority Date Filing Date
DET28327D Expired DE445212C (en) Coupling arrangement in circuits with frequency transformers

Country Status (1)

Country Link
DE (1) DE445212C (en)

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