DE833367C - Transmitter with U-shaped sheet metal cut - Google Patents

Transmitter with U-shaped sheet metal cut

Info

Publication number
DE833367C
DE833367C DEP18668A DEP0018668A DE833367C DE 833367 C DE833367 C DE 833367C DE P18668 A DEP18668 A DE P18668A DE P0018668 A DEP0018668 A DE P0018668A DE 833367 C DE833367 C DE 833367C
Authority
DE
Germany
Prior art keywords
sheet metal
transmitter
shaped sheet
metal cut
transformer
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
DEP18668A
Other languages
German (de)
Inventor
Dipl-Ing Albert Troost
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
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 AG filed Critical Telefunken AG
Priority to DEP18668A priority Critical patent/DE833367C/en
Application granted granted Critical
Publication of DE833367C publication Critical patent/DE833367C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
    • H01F21/06—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by movement of core or part of core relative to the windings as a whole

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Description

Es ist bekannt, für Übertrager, insbesondere für Eingangsübertrager von Verstärkern, den sogenannten UI-Schnitt zu verwenden und die Primär-und Sekundärwicklung je zur Hälfte auf die beiden Schenkel zu verteilen. Auf diese Weise -sohl erreicht werden, daß sich die Wirkungen eines äußeren Störfeldes in den beiden Hälften der Wicklungen gegenseitig aufgeben. Es hat sich aber gezeigt, daß dieser Aufbau zum ,Beispiel für Eingangsübertrager von Mikrofonverstärker nicht in jedem Falle genügt, insbesondere bei gedrängtem Aufbau des Verstärkers, weil dann das Störfeld inhomogen ist.It is known for transformers, especially for input transformers of amplifiers to use the so-called UI cut and the primary and secondary winding to distribute halfway between the two legs. In this way -sole reached that the effects of an external interference field in the two halves of the Give up windings on each other. But it has been shown that this structure to , Example for input transformer of microphone amplifier is not sufficient in every case, especially if the amplifier is compact, because the interference field is then inhomogeneous is.

Die Erfindung beseitigt diesen Nachbeil bei dem oben beschriebenen Übertrager dadurch, daß wenigstens einer der beiden Schenkel mit einem zusätzlichen, verschiebbaren Blechaus ferromagnetischem Werkstoff zum Abgleichen der Störspannungen versehen ist.The invention overcomes this disadvantage with that described above Transmitter in that at least one of the two legs with an additional, Slidable sheet metal made of ferromagnetic material for balancing the interference voltages is provided.

Die Abbildungen zeigen Ausführungsbeispiele der Erfindung. In Abb. i ist das Störfeld durch schräg verlaufende Linien e mit Pfeilen dargestellt. Auf ,den Schenkeln k und m des Kernes( sind sowohl die Primärwicklung g als auch die Sekundärwicklung h des Übertragers je zur Hälfte aufgebracht. Ein Abgleichblech n wird erfindungsgemäß zwischen den Schenkel k und die Wicklung eingeschoben. Ein gleiches Abgleichblech kann für den Schenkel na vorgesehen werden.The figures show exemplary embodiments of the invention. In Fig. I the interference field is shown by oblique lines e with arrows. On the legs k and m of the core ( both the primary winding g and the secondary winding h of the transformer are applied in half. According to the invention, a leveling plate n is inserted between the leg k and the winding will.

Ein Ausführungsbeispiel, das eine zweckmäßige Ausbildung eines solchen Übertragers zeigt, :ist in Abb. 2 dargestellt. Dias Blechpaket q jwird nicht in der bisher üblichen Weise durch eine Verschraubung zusammengehalten, sondern durch eine Lasche o, die unter Zwischenfügung eines Isolierstoffes s das Blechpaket umspannt. Die beiden Enden der Lasche greifen in eine Isolierplatte p ein, auf der gleichzeitig die Lötösen für die Übertrageranschlüsse angebracht sind. @Die Befestigung des Übertragers erfolgt mit Hilfe der Laschen r. Es sind zwei Abgleichbleche n vorgesehen.An embodiment that a practical training of such Transformer shows: is shown in Fig. 2. The laminated core q j is not in held together by a screw connection in the usual way, but rather by a tab o, which spans the laminated core with the interposition of an insulating material s. The two ends of the flap engage in an insulating plate p, on which at the same time the soldering lugs for the transformer connections are attached. @The attachment of the transformer takes place with the help of the tabs r. Two leveling plates are provided.

Claims (1)

PATENTANSPRUCH: Übertrager mit U-förmigem Blechschnitt und gleichmäßiger Verteilung der Primär- und Sekundärwicklung je zur Hälfte auf die beiden Schenkel, insbesondere Eingangsübertrager für Verstärker, dadurch gekennzeichnet, .daß wenigstens einer der beiden Schenkel mit einem zusätzlichen, verschiebbaren Blech aus ferromagnetischem Werkstoff zum Abgleichen der Störspannungen versehen ist. PATENT CLAIM: Transformer with a U-shaped sheet metal section and equal distribution of the primary and secondary windings each half on the two legs, in particular input transformer for amplifiers, characterized in that at least one of the two legs with an additional, movable sheet made of ferromagnetic material for balancing the interference voltage is provided.
DEP18668A 1948-10-19 1948-10-19 Transmitter with U-shaped sheet metal cut Expired DE833367C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP18668A DE833367C (en) 1948-10-19 1948-10-19 Transmitter with U-shaped sheet metal cut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP18668A DE833367C (en) 1948-10-19 1948-10-19 Transmitter with U-shaped sheet metal cut

Publications (1)

Publication Number Publication Date
DE833367C true DE833367C (en) 1952-03-06

Family

ID=7367125

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP18668A Expired DE833367C (en) 1948-10-19 1948-10-19 Transmitter with U-shaped sheet metal cut

Country Status (1)

Country Link
DE (1) DE833367C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943300C (en) * 1951-06-13 1956-05-17 Philips Nv Transformer with a closed ferromagnetic core for the transmission of signals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE943300C (en) * 1951-06-13 1956-05-17 Philips Nv Transformer with a closed ferromagnetic core for the transmission of signals

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