EP1326485A2 - Ballast pour une lampe, et procédé de commande dudit ballast - Google Patents

Ballast pour une lampe, et procédé de commande dudit ballast Download PDF

Info

Publication number
EP1326485A2
EP1326485A2 EP02027138A EP02027138A EP1326485A2 EP 1326485 A2 EP1326485 A2 EP 1326485A2 EP 02027138 A EP02027138 A EP 02027138A EP 02027138 A EP02027138 A EP 02027138A EP 1326485 A2 EP1326485 A2 EP 1326485A2
Authority
EP
European Patent Office
Prior art keywords
ballast
frequency
switch
lamp
frequencies
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Withdrawn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
EP02027138A
Other languages
German (de)
English (en)
Other versions
EP1326485A3 (fr
Inventor
Olaf Busse
Markus Heckmann
Wolfram Dr. Sowa
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1326485A2 publication Critical patent/EP1326485A2/fr
Publication of EP1326485A3 publication Critical patent/EP1326485A3/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Definitions

  • the present invention relates to a ballast for a lamp with a Inverter, which comprises at least one switch, and a drive circuit to alternately open and close the at least a switch and a method for operating such a ballast.
  • the object of the present invention is therefore a ballast of the type mentioned at the beginning and the method mentioned at the beginning to operate a ballast such that abrupt changes in brightness of a connected Lamp can be avoided.
  • the invention is based on the knowledge that the integration of the changing Lamp brightness not on a capacitor provided for this is carried out but by the sluggishness of human perception. A periodically fluctuating brightness of the lamp is not registered, if the fluctuation is above approx. 80 Hz. By switching between at least two different frequencies any perceptible brightness between the fixed discrete ones Values are generated.
  • the control circuit is preferably designed to switch between the carry out different control frequencies with a switching frequency, which is chosen such that the one with the different drive frequencies correlated different lamp brightness from one human eye can no longer be resolved.
  • the switching frequency is therefore preferably at least 60 Hz, in particular at least 80 Hz.
  • a grid rectifier can be connected upstream of the inverter an AC voltage network can be fed that has a network frequency, the switching frequency being synchronized with the mains frequency. If namely in the ballast Rippel with the mains frequency or multiples of this can occur with unsynchronized control at low frequencies Beats come that can be so low frequency that they in turn can be perceived by the human eye.
  • the mains frequency is 50 Hz or 60 Hz and the corresponding one Switching frequencies are then multiples of 50 Hz, in particular 100 Hz, or multiples of 60 Hz, in particular 120 Hz.
  • the network frequency is a multiple of the switching frequency is.
  • a switching frequency is chosen that is technically easy to implement and at the same time larger than that of humans Is still perceptible flicker frequency.
  • Figure 1 shows a ballast for operating a lamp La.
  • a first and a second switch S1; S2 are arranged between the supply voltage V CC and ground.
  • the center between the two switches S1, S2, which are preferably implemented as transistors, is connected via a coupling capacitor C K to the output circuit, which comprises an inductance L and a capacitor C.
  • Opening and closing switches S1; S2 is carried out by a control circuit 10, which is designed to switch S1; S2 can be controlled alternately with at least two different frequencies.
  • the switching frequency between the two control frequencies is at least 60 Hz, preferably at least 80 Hz.
  • FIG. 2 shows the time profile of the power P L converted in the lamp, which is correlated with the brightness emitted by the lamp, over the frequency ⁇ .
  • the frequency ⁇ is, for example, between 25 kHz and 125 kHz.
  • a first frequency ⁇ a is correlated with a first lamp power P a
  • a second frequency ⁇ b ' which is greater than ⁇ a is correlated with a second lamp power P b which is less than the lamp power P a .
  • ⁇ a and ⁇ b are two discrete successive drive frequencies that can be provided on the drive circuit 10. A direct switching back and forth between the lamp power P a and the lamp power P b as part of a regulation would lead to brightness jumps that can be perceived by a human eye.
  • FIG. 3 first shows the time course during operation of the ballast either with the lamp power P a or the lamp power P b , the line frequency of the voltage network from which the ballast is operated being reflected in the form of ripples.
  • the ballast is for a time t a to the lamp power P a, during a time period t b with the lamp power P b operated.
  • the switching between the lamp power P a and the lamp power P b is synchronized with the ripples, the switching not necessarily having to take place at the respective maxima.
  • the hatched areas in FIG. 3 show the course of the lamp power in a ballast according to the invention.
  • the switching frequency between the lamp power P a and the lamp power P b is selected so that it is above the flicker frequency perceivable by a human eye.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
EP02027138A 2002-01-02 2002-12-04 Ballast pour une lampe, et procédé de commande dudit ballast Withdrawn EP1326485A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10200047 2002-01-02
DE10200047A DE10200047A1 (de) 2002-01-02 2002-01-02 Vorschaltgerät für eine Lampe und Verfahren zum betreiben eines Vorschaltgeräts für eine Lampe

Publications (2)

Publication Number Publication Date
EP1326485A2 true EP1326485A2 (fr) 2003-07-09
EP1326485A3 EP1326485A3 (fr) 2005-01-12

Family

ID=7711451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02027138A Withdrawn EP1326485A3 (fr) 2002-01-02 2002-12-04 Ballast pour une lampe, et procédé de commande dudit ballast

Country Status (5)

Country Link
US (2) US20040012345A1 (fr)
EP (1) EP1326485A3 (fr)
CN (1) CN1430461A (fr)
CA (1) CA2415509A1 (fr)
DE (1) DE10200047A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007118808A1 (fr) * 2006-04-13 2007-10-25 Osram Gesellschaft mit beschränkter Haftung Circuit et procédé de fonctionnement d'une lampe à décharge
WO2009142996A2 (fr) * 2008-05-23 2009-11-26 Osram Sylvania, Inc. Commande bimodale de régulation de puissance d’une lampe aux halogénures métalliques et en céramique
US8378585B2 (en) 2008-05-23 2013-02-19 Osram Sylvania Inc. High frequency integrated HID lamp with run-up current

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10325872A1 (de) * 2003-06-06 2004-12-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Ansteuerschaltung für den Betrieb mindestens einer Lampe in einem dazugehörigen Lastkreis
DE102005017323A1 (de) * 2005-04-14 2006-10-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektronisches Vorschaltgerät für eine Lampe
TWI354439B (en) * 2007-06-04 2011-12-11 Holtek Semiconductor Inc Ac signal producer and method thereof
JP5595285B2 (ja) * 2008-01-24 2014-09-24 オスラム ゲーエムベーハー 少なくとも１つの光源を駆動制御するための電子安定器および方法
KR101094296B1 (ko) 2010-05-31 2011-12-19 삼성모바일디스플레이주식회사 표시장치 및 그 제조 방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365151A (en) * 1991-07-12 1994-11-15 Tridonic Bauelemente Gmbh Gas discharge lamp ballast circuit with frequency modulated pulse control
US5585699A (en) * 1994-11-18 1996-12-17 Hilite Lighting And Electronics Ltd. Control circuit for fluorescent lamps
WO1998036623A1 (fr) * 1997-02-13 1998-08-20 Koninklijke Philips Electronics N.V. Agencement de circuit

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365152A (en) * 1991-09-09 1994-11-15 Matsushita Electric Industrial Co. Ltd. Apparatus for controlling the power to a discharge-lamp
JP3244859B2 (ja) * 1993-04-12 2002-01-07 池田デンソー株式会社 放電灯点灯装置
US5381076A (en) * 1993-10-18 1995-01-10 General Electric Company Metal halide electronic ballast
US5426350A (en) * 1993-11-18 1995-06-20 Electric Power Research Institute, Inc. High frequency transformerless electronics ballast using double inductor-capacitor resonant power conversion for gas discharge lamps
US5677602A (en) * 1995-05-26 1997-10-14 Paul; Jon D. High efficiency electronic ballast for high intensity discharge lamps
US5696431A (en) * 1996-05-03 1997-12-09 Philips Electronics North America Corporation Inverter driving scheme for capacitive mode protection
JP3829507B2 (ja) * 1997-12-12 2006-10-04 松下電工株式会社 電子バラストおよびｈｉｄランプ制御回路
US6392364B1 (en) * 1999-06-21 2002-05-21 Denso Corporation High voltage discharge lamp apparatus for vehicles
KR100697726B1 (ko) * 2000-02-10 2007-03-21 페어차일드코리아반도체 주식회사 전자식 안정기를 구비한 램프 시스템
US6380694B1 (en) * 2000-09-22 2002-04-30 Matsushita Electric Works R & D Laboratory Variable structure circuit topology for HID lamp electronic ballasts
EP1227706B1 (fr) * 2001-01-24 2012-11-28 City University of Hong Kong Designs de circuits et techniques de contrôle nouveaux pour ballasts électroniques haute fréquence pour lampes à forte décharge
US6577078B2 (en) * 2001-09-26 2003-06-10 Koninklijke Philips Electronics N.V. Electronic ballast with lamp run-up current regulation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5365151A (en) * 1991-07-12 1994-11-15 Tridonic Bauelemente Gmbh Gas discharge lamp ballast circuit with frequency modulated pulse control
US5585699A (en) * 1994-11-18 1996-12-17 Hilite Lighting And Electronics Ltd. Control circuit for fluorescent lamps
WO1998036623A1 (fr) * 1997-02-13 1998-08-20 Koninklijke Philips Electronics N.V. Agencement de circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WU T-F ET AL: "AN ELECTRONIC DIMMING BALLAST WITH BIFREQUENCY AND FUZZY LOGIC CONTROL" IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, IEEE INC. NEW YORK, US, Bd. 36, Nr. 5, September 2000 (2000-09), Seiten 1308-1317, XP001142932 ISSN: 0093-9994 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007118808A1 (fr) * 2006-04-13 2007-10-25 Osram Gesellschaft mit beschränkter Haftung Circuit et procédé de fonctionnement d'une lampe à décharge
US8098020B2 (en) 2006-04-13 2012-01-17 Osram Ag Circuit arrangement and method for operating a discharge lamp
WO2009142996A2 (fr) * 2008-05-23 2009-11-26 Osram Sylvania, Inc. Commande bimodale de régulation de puissance d’une lampe aux halogénures métalliques et en céramique
WO2009142996A3 (fr) * 2008-05-23 2010-01-28 Osram Sylvania, Inc. Commande bimodale de régulation de puissance d’une lampe aux halogénures métalliques et en céramique
US7863827B2 (en) 2008-05-23 2011-01-04 Osram Sylvania Inc. Ceramic metal halide lamp bi-modal power regulation control
US8378585B2 (en) 2008-05-23 2013-02-19 Osram Sylvania Inc. High frequency integrated HID lamp with run-up current

Also Published As

Publication number Publication date
DE10200047A1 (de) 2003-07-17
US6768271B2 (en) 2004-07-27
CA2415509A1 (fr) 2003-07-02
EP1326485A3 (fr) 2005-01-12
CN1430461A (zh) 2003-07-16
US20040012345A1 (en) 2004-01-22
US20030137256A1 (en) 2003-07-24

Similar Documents

Publication Publication Date Title
DE4332059B4 (de) Vorschaltgerät zur Helligkeitssteuerung von Entladungslampen
DE3243316C2 (de) Elektronisches Vorschaltgerät für Gasentladungslampen zum Steuern der Leistungsaufnahme derselben
DE1942045C3 (de) Geregeltes, von einer dreiphasigen Wechselspannung gespeistes Netzgerät
DE102006014899B4 (de) Schaltvorrichtung und verwandtes Betriebsverfahren
EP1465465B1 (fr) Ballast électronique avec un circuit en pont complet
EP0978221B1 (fr) Circuiterie pour fonctionnement modulable d'un tube fluorescent
DE69716290T2 (de) Schaltung und verfahren zum betreiben von lampen
EP1326485A2 (fr) Ballast pour une lampe, et procédé de commande dudit ballast
EP1696713B1 (fr) Ballast électronique avec dispositif de mesure de courant pour lampe à décharge haute-pression
CH690891A5 (de) Heizleistungsregulierung für Induktionskochherd.
EP2477461A1 (fr) Système de commande d'installations d'éclairage
EP1202613B1 (fr) Dispositif pour au moins une lampe avec éntrée de commande et mode d'emploi pour des lampes électriques utilisant un tel dispositif
DE29622825U1 (de) Bestrahlungsgerät
EP1189490B1 (fr) Ballast électronique de lampe fluorescente
EP0679047B1 (fr) Circuit pour l'alimentation pulsée d'une lampe à décharge
DE69400836T2 (de) Vorschaltgerät für Entladungenslampen, mit verbessertem Formfaktor
DE60216814T2 (de) Verfahren und vorrichtung zur dimmung von hid lampen
EP0429028A2 (fr) Ballast pour plusieurs lampes à décharge
DE60117837T2 (de) Schaltungsanordnung
EP0557599A1 (fr) Méthode de commande d'un modulateur numérique d'impulsions en marches d'escalier
EP1198159B1 (fr) Méthode de calibration d' un ballast électronique non réglable en intensité ainsi qu' un ballast électronique auto-calibrant
EP1771046B1 (fr) Ballast électronique avec une unité de commande numérique
DE10248304A1 (de) Verfahren und Vorrichtung zur Erzeugung von zwei- oder mehrkanaligen pulsweitenmodulierten Rechteckpulsen
EP1266545A1 (fr) Transformateur electronique
DE9408734U1 (de) Hochspannungs-Versorgungsschaltung für eine Gasentladungslampe

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20050701