EP3089560A1 - Ballast pour au moins une del et systeme d'eclairage comprenant un ballast et au moins une del - Google Patents

Ballast pour au moins une del et systeme d'eclairage comprenant un ballast et au moins une del Download PDF

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Publication number
EP3089560A1
EP3089560A1 EP16167428.8A EP16167428A EP3089560A1 EP 3089560 A1 EP3089560 A1 EP 3089560A1 EP 16167428 A EP16167428 A EP 16167428A EP 3089560 A1 EP3089560 A1 EP 3089560A1
Authority
EP
European Patent Office
Prior art keywords
operating device
frequency
led
pwm signal
designed
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.)
Withdrawn
Application number
EP16167428.8A
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German (de)
English (en)
Inventor
Michael BÖHNEL
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.)
Zumtobel Lighting GmbH Austria
Original Assignee
Zumtobel Lighting GmbH Austria
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 Zumtobel Lighting GmbH Austria filed Critical Zumtobel Lighting GmbH Austria
Publication of EP3089560A1 publication Critical patent/EP3089560A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source

Definitions

  • the present invention relates to an operating device for operating at least one LED, wherein the operating device is designed to operate the at least one LED with a pulse width modulation signal (PWM signal) or supply, and an arrangement for lighting a control gear and at least one LED.
  • PWM signal pulse width modulation signal
  • the LEDs can be appropriately dimmed, but overall the frequency of turn-on and turn-off remains the same. That is, here, with the use of PWM signals for dimming, there is no change in the frequency.
  • Dimming of LEDs is to be noted that the procedure has prevailed in particular with the aid of PWM signals, since it represents a relatively simple way of LED driving and the light output can be modified in spite of everything in a simple manner. It should be noted here that even if there is no dimming or no precise current setting, for example for color mixing, temporarily or in total, In spite of everything, PWM signals can be used to optionally have the option of dimming or current adjustment at any time.
  • the object of the present invention is now to provide a way to avoid such effects in the use of PWM signals in the supply of LEDs.
  • an operating device for operating at least one LED wherein the operating device is configured to operate or supply the at least one LED with a pulse-width modulation signal (PWM signal).
  • the operating device is additionally designed to change or to vary the frequency of the PWM signal.
  • the frequency thus moves within a certain range around a main frequency, wherein the PWM signal can have any frequency within the range, ie, no specific fixed values are given here.
  • the operating device is designed both to vary the frequency of the PWM signal between a plurality of fixed frequencies or to change, and is adapted to the frequency of the PWM signal around a main frequency around may vary, and the operating device may then include means for enabling a selection as to whether the frequency of the PWM signal varies between a plurality of fixed frequencies, or whether the frequency of the PWM signal varies around a main frequency; fluctuates.
  • the operating device may also be designed to operate a plurality of LEDs.
  • FIG. 1 Now, an arrangement for lighting with a first variant of such a control gear 1 is shown, which is connected to an LED 3 and accordingly operate the LED 3 or can supply. It is then provided that the frequency or fundamental frequency of the PWM signal is varied or changed over time.
  • means 4 are provided for setting a main or fundamental frequency.
  • means 5 are provided for setting a range around which the main frequency fluctuates around.
  • the frequency of the PWM signal fluctuates around a main frequency in a certain range, wherein both the main frequency is adjustable via corresponding means 4 as well as the range itself via corresponding means 5.
  • a main frequency of 500 Hz is set via the means 4, and a range of +/- 50 Hz via the means 5.
  • the PWM signal fluctuates between a frequency of 450 Hz and 550 Hz.
  • the 50Hz range would be, for example, but also a 100Hz range down and up conceivable.
  • both the means 6 for setting the plurality of fixed frequencies and the means 7 for setting the sequence as a rotary switch wherein the means 6 for setting the plurality of fixed frequencies comprise four rotary switches, whereby in the in FIG. 2 shown operating device 2 four different fixed frequencies are adjustable. That is, where in FIG. 2 shown operating device 2 is a change between four different frequencies of the PWM signal, this being only an exemplary number, which can be varied as desired.
  • operating device 2 thus results in a clearly defined discrete "frequency hopping" to fixed frequencies or fundamental frequencies.
  • FIGS. 3 and 4 are now schematically shown in each case a PWM signal, wherein in FIG. 3 a PWM signal is shown in which the frequency or fundamental frequency is constant.
  • the frequency is changed or varied, wherein at the beginning of a middle frequency to a higher frequency, then changed back to a middle frequency and finally to a lower frequency.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP16167428.8A 2015-04-28 2016-04-28 Ballast pour au moins une del et systeme d'eclairage comprenant un ballast et au moins une del Withdrawn EP3089560A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015102108.9U DE202015102108U1 (de) 2015-04-28 2015-04-28 Betriebsgerät zum Betreiben mindestens einer LED und Anordnung zur Beleuchtung mit einem Betriebsgerät und mindestens einer LED

Publications (1)

Publication Number Publication Date
EP3089560A1 true EP3089560A1 (fr) 2016-11-02

Family

ID=55854724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16167428.8A Withdrawn EP3089560A1 (fr) 2015-04-28 2016-04-28 Ballast pour au moins une del et systeme d'eclairage comprenant un ballast et au moins une del

Country Status (3)

Country Link
EP (1) EP3089560A1 (fr)
AT (1) AT16445U1 (fr)
DE (1) DE202015102108U1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783909A (en) * 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
WO2003069958A1 (fr) * 2002-02-14 2003-08-21 Koninklijke Philips Electronics N.V. Dispositif de commutation destine a la commande d'un reseau de led
EP1689212A1 (fr) * 2005-02-02 2006-08-09 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Méthode et dispositif pour varier l' intensité lumineuse de sources de lumière
DE60213731T2 (de) * 2001-09-07 2007-08-16 Litepanels LLC, North Hollywood System zur Erzeugung von großflächigen Lichteffekten
DE102008008181A1 (de) * 2008-02-08 2009-08-13 Audi Ag Verfahren zum Betrieb einer Kraftfahrzeugbeleuchtungseinrichtung
DE102009025184A1 (de) * 2008-06-13 2010-01-21 Panasonic Electric Works Co., Ltd., Kadoma-shi LED-Beleuchtungsvorrichtung
WO2011039678A1 (fr) * 2009-09-30 2011-04-07 Koninklijke Philips Electronics N.V. Gradation d'intensité de circuit d'attaque de del
WO2011083117A2 (fr) * 2010-01-05 2011-07-14 Tridonic Gmbh & Co Kg Procédé combiné pour faire fonctionner un élément luminescent électrique et circuit d'exploitation

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5783909A (en) * 1997-01-10 1998-07-21 Relume Corporation Maintaining LED luminous intensity
DE60213731T2 (de) * 2001-09-07 2007-08-16 Litepanels LLC, North Hollywood System zur Erzeugung von großflächigen Lichteffekten
WO2003069958A1 (fr) * 2002-02-14 2003-08-21 Koninklijke Philips Electronics N.V. Dispositif de commutation destine a la commande d'un reseau de led
EP1689212A1 (fr) * 2005-02-02 2006-08-09 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Méthode et dispositif pour varier l' intensité lumineuse de sources de lumière
DE102008008181A1 (de) * 2008-02-08 2009-08-13 Audi Ag Verfahren zum Betrieb einer Kraftfahrzeugbeleuchtungseinrichtung
DE102009025184A1 (de) * 2008-06-13 2010-01-21 Panasonic Electric Works Co., Ltd., Kadoma-shi LED-Beleuchtungsvorrichtung
WO2011039678A1 (fr) * 2009-09-30 2011-04-07 Koninklijke Philips Electronics N.V. Gradation d'intensité de circuit d'attaque de del
WO2011083117A2 (fr) * 2010-01-05 2011-07-14 Tridonic Gmbh & Co Kg Procédé combiné pour faire fonctionner un élément luminescent électrique et circuit d'exploitation

Also Published As

Publication number Publication date
AT16445U1 (de) 2019-10-15
DE202015102108U1 (de) 2016-08-01

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