DE416022C - Arrangement that serves to supplement double lines loaded with coils - Google Patents

Arrangement that serves to supplement double lines loaded with coils

Info

Publication number
DE416022C
DE416022C DEH88109D DEH0088109D DE416022C DE 416022 C DE416022 C DE 416022C DE H88109 D DEH88109 D DE H88109D DE H0088109 D DEH0088109 D DE H0088109D DE 416022 C DE416022 C DE 416022C
Authority
DE
Germany
Prior art keywords
coils
line
circuits
trunk
current
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
DEH88109D
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEH88109D priority Critical patent/DE416022C/en
Application granted granted Critical
Publication of DE416022C publication Critical patent/DE416022C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/40—Artificial lines; Networks simulating a line of certain length

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)

Description

(H88109(H88109

Nach dem Küpfmüllerschen Patent 330964 wird die Nachbildung des Schemwiderstandes einer langen Spulenleitung dadurch erleichtert, daß man nach Abb. 1 die Leitung auf etwa 0,83 des Spulenabstandes ergänzt (Kondensator 1) und ihr einen oder besser noch zwei Schwingungskreise L1C1 (2) oder L1C1 (2) und L2C2 (3) vorschaltet. Eine so ergänzte Spulenleitung kann in einfachster Weise bis nahe an die Grenzfrequenz durch einen induktionsfreien Widerstand R0 (4) nachgebildet werden. Die Anwendung dieses Verfahrens auf Spulenleitungen, die zum Doppelsprechen benutzt werden, begegnet einigen Schwierigkeiten insofern, als die Drosselkreise 2 und 3 die Nachbildung des mit Spulen belasteten Viererkreises und u. U. die Symmetrie der Stammleitungen stören.After Küpfmüllerschen Patent 330964, the replica of the Schemwiderstandes a long coil line is facilitated by that one adds to fig. 1 the line to about 0.83 of the coil spacing (capacitor 1) and its one or more preferably two vibration circuits L 1 C 1 (2 ) or L 1 C 1 (2) and L 2 C 2 (3). A coil line supplemented in this way can be simulated in the simplest way up to the limit frequency by means of an induction-free resistor R 0 (4). The application of this method to coil lines that are used for double-talk encounters some difficulties in that the choke circuits 2 and 3 disturb the simulation of the four-circuit loaded with coils and, under certain circumstances, the symmetry of the trunk lines.

Gegenstand der Erfindung ist nun, die beiden Spulen L1 und L2 der Drosselkreise auf einen gemeinsamen Eisenkreis zu wickeln, und zwar so, daß die Drosselkreise nur für die in den Stammleitungen fließenden Ströme wirksam sind, nicht aber für die beide Zweige jeder Stammleitung in gleichem Sinne durchfließenden Ströme des Viererkreises (Abb. 1). Die Kondensatoren C1 und C2 der Drosselkreise 2 und 3 sind unter dieser Voraussetzung für den Viererkreis nahezu kurzgeschlossen, besonders da Spulen mit geringem Ohmschen Widerstand benutzt werden müssen.The object of the invention is now to wind the two coils L 1 and L 2 of the choke circuits on a common iron circuit, in such a way that the choke circuits are only effective for the currents flowing in the trunk lines, but not for the two branches of each trunk line in in the same sense flowing through currents of the circle of four (Fig. 1). The capacitors C 1 and C 2 of the choke circuits 2 and 3 are almost short-circuited under this condition for the quad circuit, especially since coils with a low ohmic resistance must be used.

Die Schaltung läßt sich noch wesentlich da-The circuit can still be significantly

durch vereinfachen, daß nur ein Schwingungskreis LC (5) (Abb. 2) verwendet wird, den man zwischen die Wicklungshälften s/2 der Doppelsprechringübertrager RUe der Stammleitungen und des Vierers schaltet und bei dem man die Spule L des Drosselkreises 5 gleichzeitig als Verzweigungsspule für die Viererschaltung benutzt (Abb. 2). Die Spule muß zu diesem Zweck differential gewickelt und genau abgeglichen sein.by simplifying that only one oscillating circuit LC (5) (Fig. 2) is used, which is connected between the winding halves s / 2 of the double-talk ring transmitter RUe of the trunk lines and the quad and in which the coil L of the inductor circuit 5 is simultaneously used as a branch coil for the quad circuit is used (Fig. 2). The coil must be wound differentially and precisely balanced for this purpose.

Claims (2)

Patent-Ansprüche:Patent Claims: i. Anordnung, die zur Ergänzung von mit Spulen belasteten Doppelleitungen dient, bei welcher zwecks Erleichterung der Nachbildung des Scheinwiderstandes die Stamm- und Viererleitungen durch Einschaltung von zu den Leitungskapazitäten parallel gelegten Kondensatoren und durch Einfügen von einem Schwingungskreise oder mehreren ergänzt sind, dadurch gekennzeichnet, daß die zwei aus Induktivität und Kapazität bestehenden Drosselkreise in jeder Stammleitung genau gleich bemessen und die beiden Spulen auf einen gemeinsamen Eisenkern gewickelt und so geschaltet sind, daß die beiden Drosselkreise nur für die in jeder Stammleitung fließenden Ströme im Sinne einer Kompensation der negativen imaginären Komponente ihres Scheinwiderstandes wirksam sind, dagegen bei Viererbetrieb unwirksam bleiben.i. Arrangement to supplement double lines loaded with coils serves, in which to facilitate the simulation of the impedance, the trunk and quad lines by switching on are supplemented by capacitors placed in parallel with the line capacitances and by inserting one or more oscillating circuits characterized in that the two consisting of inductance and capacitance Choke circuits in each trunk line are dimensioned exactly the same and the two coils are wound on a common iron core and are connected in such a way that the two throttle circuits are only intended for the currents flowing in each trunk line a compensation of the negative imaginary component of their impedance are effective, on the other hand with four operation remain ineffective. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Drosselkreise in jeder Stammleitung zu einem vereinigt und in die Mittenverbindung der Leitungshälften der Doppelsprechringübertrager gelegt sind, und daß die Spulen des Drosselkreises gleichzeitig als genau differential gewickelte Spulen ausgebildet sind, an deren Mittelpunkt der Vierer angeschlossen ist, so daß die Stammleitungsdrosselkreise für den Vierer unwirksam sind.2. Arrangement according to claim 1, characterized in that the two throttle circuits in each trunk line combined into one and in the middle connection of the line halves of the double-talk ring transmitter are placed, and that the coils of the inductor circuit are designed at the same time as precisely differentially wound coils are, at the center of which the quad is connected, so that the trunk line chokes are ineffective for the foursome. Abb.Fig. Leitufigs» nachbildungLeitufigs » replica Läfvng ·<— κ Läfvng · <- κ ■ Stamm teitungs.■ Main management. stromcurrent - Vi&rerleitunqs. strom - Vi & rerleitunqs. current ί Λ.ΟΟ. ί Λ.ΟΟ. Uitungs, nachbildungUitungs, replica Stamm, leitung 1Tribe, line 1 Vitrerleitunqs stromVitrerleitunqs current Vierer.Four. StromkreisCircuit Stamm* leitung 2.Tribe* line 2. BERLIN. GEDRUCKT IN DER BEICHSDRUCKERELBERLIN. PRINTED IN THE BEICHSDRUCKEREL
DEH88109D 1921-12-09 1921-12-09 Arrangement that serves to supplement double lines loaded with coils Expired DE416022C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH88109D DE416022C (en) 1921-12-09 1921-12-09 Arrangement that serves to supplement double lines loaded with coils

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH88109D DE416022C (en) 1921-12-09 1921-12-09 Arrangement that serves to supplement double lines loaded with coils

Publications (1)

Publication Number Publication Date
DE416022C true DE416022C (en) 1925-07-07

Family

ID=7165188

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH88109D Expired DE416022C (en) 1921-12-09 1921-12-09 Arrangement that serves to supplement double lines loaded with coils

Country Status (1)

Country Link
DE (1) DE416022C (en)

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