DE3611520A1 - ADJUSTABLE LINEARITY COIL FOR VIDEO VISORS - Google Patents

ADJUSTABLE LINEARITY COIL FOR VIDEO VISORS

Info

Publication number
DE3611520A1
DE3611520A1 DE19863611520 DE3611520A DE3611520A1 DE 3611520 A1 DE3611520 A1 DE 3611520A1 DE 19863611520 DE19863611520 DE 19863611520 DE 3611520 A DE3611520 A DE 3611520A DE 3611520 A1 DE3611520 A1 DE 3611520A1
Authority
DE
Germany
Prior art keywords
coil
video
adjustable linearity
linearity coil
visors
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.)
Granted
Application number
DE19863611520
Other languages
German (de)
Other versions
DE3611520C2 (en
Inventor
Anton Dipl Ing Schmeller
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.)
Vogt Electronic AG
Original Assignee
Vogt Electronic 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 Vogt Electronic AG filed Critical Vogt Electronic AG
Priority to DE19863611520 priority Critical patent/DE3611520A1/en
Priority to EP87102839A priority patent/EP0240700A3/en
Publication of DE3611520A1 publication Critical patent/DE3611520A1/en
Application granted granted Critical
Publication of DE3611520C2 publication Critical patent/DE3611520C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/98—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/76—Deflecting by magnetic fields only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H01F2005/046—Details of formers and pin terminals related to mounting on printed circuits

Landscapes

  • Details Of Television Scanning (AREA)
  • Coils Or Transformers For Communication (AREA)

Description

Für Video-Sichtgeräte werden zur Linearisierung der Zeilenablenkung Spulen benötigt, deren Kern durch einen Permanentmagneten vormagnetisiert ist, um je nach Strom eine veränderte resultierende Induktivität zu erhalten.For video viewing devices, coils are used to linearize the line deflection needed, the core of which is biased by a permanent magnet in order to to get a changed resulting inductance depending on the current.

Dies wurde bisher dadurch gelöst, daß auf einen sogenannten Rollenkern, der die Wicklung trägt, ein vorzugsweise scheibenförmiger Permanentmagnet beispiels­ weise aus Ferrit auf einem Flansch dieses Rollenkerns befestigt wurde, wobei die Höhe dieser Scheibe eine gewisse - allerdings - festeingestellte Variation der Induktivität/Strom-Kurve zuließ.This has so far been solved in that on a so-called roll core, the the winding carries a preferably disc-shaped permanent magnet, for example was made of ferrite on a flange of this roller core, wherein the height of this disc a certain - albeit - fixed variation the inductance / current curve.

Durch die gestiegenen Anforderungen an die Genauigkeit der Geometrie bei den Video-Sichtgeräten, insbesondere für die CAD-CAM-Anwendung, wurde eine Einstellbarkeit der Induktivitäts/Stromkurve unabdingbar.Due to the increased demands on the accuracy of the geometry the video viewing devices, especially for the CAD-CAM application, has become one Adjustability of the inductance / current curve is essential.

Die Neuerung zeigt eine Lösung, die auch eine kostengünstige Massenherstellung erlaubt.The innovation shows a solution that is also an inexpensive mass production allowed.

In einen Spulenkörper 1, der in seinem Sockel 2 sowohl die Anschlußstifte 3 für die Printverlötung, als auch eine zusätzliche "snap-in"-Befestigung 4 trägt und an seinem oberen Flansch 5 ein Außengewinde 6 aufweist, ist ein mag­ netisch sättigbarer Kern 7, vorzugsweise aus Ferrit in H-Form eingelagert. Dieser Spulenkörper 1 trägt die Wicklung 8.In a bobbin 1 , which carries in its base 2 both the pins 3 for print soldering, as well as an additional “snap-in” attachment 4 and has an external thread 6 on its upper flange 5 , is a magnetically saturable core 7 , preferably made of ferrite in an H shape. This coil former 1 carries the winding 8 .

Auf das Außengewinde 6 wird eine Kappe mit entsprechendem Innengewinde 9 aufgeschraubt. Das Drehmoment ist durch die Konstruktion (z. B. Steigungsfehler beim Gewinde) definiert. Diese Kappe 9 enthält einen Magneten 10 vorzugsweise aus Ferrit.A cap with a corresponding internal thread 9 is screwed onto the external thread 6 . The torque is defined by the design (e.g. pitch error in the thread). This cap 9 contains a magnet 10, preferably made of ferrite.

Durch die Schraubverbindung zwischen Spulenkörper 1 und Kappe 9 wird erreicht, daß der Luftspalt 11 zwischen Kern 7 und Magnet 10 den Erfordernissen angepaßt werden kann.The screw connection between the coil former 1 and the cap 9 ensures that the air gap 11 between the core 7 and the magnet 10 can be adapted to the requirements.

Gegebenenfalls kann die Kappe 9 noch mit entsprechenden, hier nicht gezeich­ neten Mitteln zum automatischen Abgleich versehen sein, wie z. B. ein Schrauben­ dreherschlitz, ein Vielkant am Umfang od. dergl.If necessary, the cap 9 can also be provided with corresponding means, not shown here, for automatic adjustment, such as, for. B. a screwdriver slot, a polygon on the circumference or the like.

Claims (3)

1. Einstellbare Linearitätsspule für Video-Sichtgeräte mit einem Spulenkörper, einer Wicklung, einem magnetisch sättigbaren Spulenkern, vorzugsweise aus Ferrit und einem Permanentmagneten zur Vormagnetisierung, dadurch gekennzeichnet, daß der Permanentmagnet in einer Schraubkappe ange­ bracht ist, die im Eingriff mit dem Spulenkörper eine Einstellung der Vor­ magnetisierung durch Veränderung des Luftspalts erlaubt.1. Adjustable linearity coil for video viewing devices with a coil body, a winding, a magnetically saturable coil core, preferably made of ferrite and a permanent magnet for bias, characterized in that the permanent magnet is placed in a screw cap, which is in engagement with the coil body an adjustment which allows magnetization by changing the air gap. 2. Einstellbare Linearitätsspule für Video-Sichtgeräte nach Anspruch 1, dadurch gekennzeichnet, daß der Spulenkörper Mittel zur "snap-in"-Befesti­ gung auf der Printplatte trägt.2. Adjustable linearity coil for video viewing devices according to claim 1, characterized in that the bobbin means for "snap-in" attachment on the printed circuit board. 3. Einstellbare Linearitätsspule für Video-Sichtgeräte nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Spulenkern H-förmig ausgebildet ist.3. Adjustable linearity coil for video viewing devices according to claim 1 and 2, characterized in that the coil core is H-shaped.
DE19863611520 1986-04-05 1986-04-05 ADJUSTABLE LINEARITY COIL FOR VIDEO VISORS Granted DE3611520A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19863611520 DE3611520A1 (en) 1986-04-05 1986-04-05 ADJUSTABLE LINEARITY COIL FOR VIDEO VISORS
EP87102839A EP0240700A3 (en) 1986-04-05 1987-02-27 Adjustable linearity coil for video display devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863611520 DE3611520A1 (en) 1986-04-05 1986-04-05 ADJUSTABLE LINEARITY COIL FOR VIDEO VISORS

Publications (2)

Publication Number Publication Date
DE3611520A1 true DE3611520A1 (en) 1987-10-08
DE3611520C2 DE3611520C2 (en) 1993-03-11

Family

ID=6298062

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19863611520 Granted DE3611520A1 (en) 1986-04-05 1986-04-05 ADJUSTABLE LINEARITY COIL FOR VIDEO VISORS

Country Status (2)

Country Link
EP (1) EP0240700A3 (en)
DE (1) DE3611520A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899654A (en) * 1959-08-11 Variable inductance device
US3060394A (en) * 1958-12-20 1962-10-23 Maeda Hisao Radio transformer
US4511872A (en) * 1982-11-05 1985-04-16 Spang Industries Inc. Inductance tuning means and methods of manufacture

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU708426A1 (en) * 1976-04-19 1980-01-05 Войсковая Часть 44388-Р/1 Variable inductance coil
DE8120965U1 (en) * 1981-07-17 1981-11-19 Vogt Gmbh & Co Kg, 8391 Erlau LINEARITY COIL FOR TELEVISION RECEIVER
JPS59210621A (en) * 1984-04-27 1984-11-29 Matsushita Electric Ind Co Ltd High-frequency coil
JPS6018111A (en) * 1984-06-08 1985-01-30 松下電器産業株式会社 Cooker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899654A (en) * 1959-08-11 Variable inductance device
US3060394A (en) * 1958-12-20 1962-10-23 Maeda Hisao Radio transformer
US4511872A (en) * 1982-11-05 1985-04-16 Spang Industries Inc. Inductance tuning means and methods of manufacture

Also Published As

Publication number Publication date
DE3611520C2 (en) 1993-03-11
EP0240700A2 (en) 1987-10-14
EP0240700A3 (en) 1989-10-11

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8330 Complete disclaimer