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DE1006971B - Switching arrangement for brightness control of fluorescent lamps - Google Patents

Switching arrangement for brightness control of fluorescent lamps

Info

Publication number
DE1006971B
DE1006971B DES32006A DES0032006A DE1006971B DE 1006971 B DE1006971 B DE 1006971B DE S32006 A DES32006 A DE S32006A DE S0032006 A DES0032006 A DE S0032006A DE 1006971 B DE1006971 B DE 1006971B
Authority
DE
Germany
Prior art keywords
fluorescent lamps
switching arrangement
brightness control
air gap
lamps
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
DES32006A
Other languages
German (de)
Inventor
Dr Walter Hartel
Dr Helmut Dietz
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.)
Siemens Corp
Original Assignee
Siemens Corp
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
Priority claimed from DES27811A external-priority patent/DE1003355B/en
Application filed by Siemens Corp filed Critical Siemens Corp
Priority to DES32006A priority Critical patent/DE1006971B/en
Publication of DE1006971B publication Critical patent/DE1006971B/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14Circuit arrangements
    • H05B41/36Controlling
    • H05B41/38Controlling the intensity of light
    • H05B41/39Controlling the intensity of light continuously

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)

Description

Schaltanordnung zur Helligkeitssteuerung von Leuchtstofflampen Zusatz zur Patentanmeldung @S 27&11 VIII c % 21 f (Auslegeschrift 1003 355) Gegenstand der Hauptpatentanmeldung S 27811 VIII c/21 f (Auslegeschrift 1003 355) ist eine Schaltanordnung zur Helligkeitssteuerung von Leuchtstofflampen, mit der der Lampenentladungsstrom vom Nennwert auf einen um mehrere Größenordnungen kleineren Betrag bis zur völligen Abdunkelung allmählich herabsetzbar ist. Zu diesem Zwecke sind die einzelnen Lampen, die ihren Entladungsstrom über eine allen Lampen bzw. einer Lampengruppe gemeinsame Steuereinrichtung beziehen, Impedanzen vorgeschaltet, deren Impedanzwert bei kleinen Lampenentladungsströmen größer ist als bei großen Lampenentladungsströmen. In erster Linie dienen als Vorschaltimpedanzen Drosseln, deren Eisenkern aus einem luftspaltlosen Kernteil, der bei Lampen-Nennstrom hochgesättigt ist und aus einem mit Luftspalt ausgeführten Kernteil besteht. Auf diese Weise wird es ermöglicht, eine Gruppe von Leuchtstofflampen, deren Lampenstromzweige einander parallel geschaltet sind, mittels eines gemeinsamen Steuergerätes gleichmäßig zu verdunkeln und aufzuhellen, gleichgültig, ob als Steuergerät ein Transformator oder ein Widerstand verwendet wird.Switching arrangement for brightness control of fluorescent lamps Addition to patent application @S 27 & 11 VIII c% 21 f (Auslegeschrift 1003 355) The subject of main patent application S 27811 VIII c / 21 f (Auslegeschrift 1003 355) is a switching arrangement for brightness control of fluorescent lamps, with which the lamp discharge current of the nominal value can be gradually reduced to an amount several orders of magnitude smaller until it is completely darkened. For this purpose, the individual lamps, which draw their discharge current via a control device common to all lamps or a group of lamps, are preceded by impedances whose impedance value is greater for small lamp discharge currents than for large lamp discharge currents. Mainly used as series impedance are chokes whose iron core consists of a core part without air gap, which is highly saturated at the rated lamp current, and consists of a core part with an air gap. In this way it is possible to evenly darken and brighten a group of fluorescent lamps, the lamp current branches of which are connected in parallel, by means of a common control device, regardless of whether a transformer or a resistor is used as the control device.

Es läßt sich bei der Herstellung von Vorschaltdrosseln der oben angeführten Bauart kaum vermeiden, daß ihre Kennlinie kleine Abweichungen voneinander aufweisen, die sich im Parallelbetrieb mehrerer Lampen durch Ungleichmäßigkeit ihres Helligkeitsgrades störend bemerkbar machen können. Diese Unterschiede können durch Veränderung der Blechzahlen der Bleche mit und ohne Luftspalt weitgehend ausgeglichen werden, dazu müßten die Drosseln aber wieder zerlegt werden. Demgegenüber ist ein nachträglicher Kennlinienabgleich auf einfachere Weise möglich, indem die Drosselwicklungen erfindungsgemäß mit Anzapfungen versehen werden; denn auch durch Veränderung der Windungszählen um eine oder wenige Windungen können die Kennlinien der Vorschaltdrosseln einer Lampengruppe einander in einem für die Erzielung gleichmäßiger Helligkeit über den ganzen Steuerbereich des Steuergerätes ausreichendem Maße angepaßt werden. Erforderlichenfalls können damit auch Unterschiede der Lampenkennlinien, sofern solche sich störend bemerkbar machen sollten, nachträglich unschädlich gemacht werden. Die Anzapfungen der Drosselwicklungen können mit Lötösen oder mit noch leichter herstell- und lösbaren Anschlüssen, z. B. Schraub- oder Steckanschlüssen, versehen sein.It can be used in the manufacture of series chokes of the above Design can hardly be avoided that their characteristics show small deviations from each other, which can be seen in the parallel operation of several lamps due to the unevenness of their degree of brightness can make disturbing noticeable. These differences can be changed by changing the Sheet numbers of sheets with and without an air gap are largely compensated, in addition but the chokes would have to be dismantled again. In contrast, there is a subsequent Adjustment of characteristic curves is possible in a simpler way by the inductor windings according to the invention be provided with taps; because also by changing the number of turns around one or a few turns, the characteristics of the series chokes can be a Lamp group each other in one for the achievement of uniform brightness over the The entire control range of the control unit must be adequately adapted. If necessary This means that differences in the lamp characteristics can also be used, insofar as these are bothersome should be made noticeable, subsequently rendered harmless. The taps the inductor windings can be produced and detached with solder lugs or with even easier ones Connections, e.g. B. screw or plug connections.

Claims (1)

PATENTANSPRUCH: Schaltanordnung zur Helligkeitssteuerung von Leuchtstofflampen, denen Drosselspulen vorgeschaltet sind, deren Eisenkern aus einem luftspaltlosen, sättigbaren Kernteil und einem Kernteil mit Luftspalt zusammengesetzt ist, nach Hauptpatentanmeldung S27811 VIII c / 21f (Auslegeschrift 1003355), dadurch gekennzeichnet, daß die Drosselwicklungen mit Anzapfungen zum Kennlinienabgleich versehen sind.PATENT CLAIM: Switching arrangement for the brightness control of fluorescent lamps, which are preceded by choke coils, the iron core of which is composed of an air gap-free, saturable core part and a core part with an air gap, according to main patent application S27811 VIII c / 21f ( Auslegeschrift 1003355), characterized in that the choke windings for tapping Characteristic curve adjustment are provided.
DES32006A 1952-03-24 1953-01-31 Switching arrangement for brightness control of fluorescent lamps Pending DE1006971B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES32006A DE1006971B (en) 1952-03-24 1953-01-31 Switching arrangement for brightness control of fluorescent lamps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES27811A DE1003355B (en) 1952-03-24 1952-03-24 Switching arrangement for controlling the brightness of low-voltage fluorescent lamps
DES32006A DE1006971B (en) 1952-03-24 1953-01-31 Switching arrangement for brightness control of fluorescent lamps

Publications (1)

Publication Number Publication Date
DE1006971B true DE1006971B (en) 1957-04-25

Family

ID=7480707

Family Applications (1)

Application Number Title Priority Date Filing Date
DES32006A Pending DE1006971B (en) 1952-03-24 1953-01-31 Switching arrangement for brightness control of fluorescent lamps

Country Status (1)

Country Link
DE (1) DE1006971B (en)

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