EP1196012A2 - Zündschaltung für Entladungslampen - Google Patents

Zündschaltung für Entladungslampen Download PDF

Info

Publication number
EP1196012A2
EP1196012A2 EP01123778A EP01123778A EP1196012A2 EP 1196012 A2 EP1196012 A2 EP 1196012A2 EP 01123778 A EP01123778 A EP 01123778A EP 01123778 A EP01123778 A EP 01123778A EP 1196012 A2 EP1196012 A2 EP 1196012A2
Authority
EP
European Patent Office
Prior art keywords
ballast
switching means
ignitor
discharge lamp
circuit
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Withdrawn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
EP01123778A
Other languages
English (en)
French (fr)
Other versions
EP1196012A3 (de
Inventor
Eran Erez
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.)
Eltam Ein Hashofet
Original Assignee
Eltam Ein Hashofet
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 Eltam Ein Hashofet filed Critical Eltam Ein Hashofet
Publication of EP1196012A2 publication Critical patent/EP1196012A2/de
Publication of EP1196012A3 publication Critical patent/EP1196012A3/de
Withdrawn legal-status Critical Current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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices

Definitions

  • the present invention relates to ignitors, more particularly, to an ignitor circuit for a discharge lamp operating with magnetic ballast equipped with at least one tapping.
  • the current lighting technology relating to lamps operating with magnetic ballasts utilizes ignitors and ignitor circuits, as follows:
  • Ignition is performed by means of a pulser-type ignitor circuit such as that shown in Fig. 1, which includes a magnetic ballast in series with a discharge lamp, the ballast being equipped with a special tapping connected to an electronic circuit comprising a switch, capacitor(s) and resistor(s).
  • the high voltage ignition pulses are generated by joint operation of the electronic circuitry and the ballast.
  • This type of ignitor is further subdivided into two sub-groups: the fast pulse rate type, which supplies one or more pulses per half cycle of the mains voltage, and the slow pulse rate type, which supplies one or a few pulses per second.
  • the former type provides good ignition, but has the disadvantage of causing harm to the ballast's insulation.
  • the latter type does not harm the ballast's insulation, and it can be designed to supply wide pulses enabling it to ignite the lamp from greater distances (30-50 meters). However, due to its slow pulse rate, it is not suitable for some kinds of lamps.
  • the superposed pulse ignitor circuit includes a special pulse transformer enabling the generation of high voltage pulses independent of the ballast, thus protecting the ballast insulation from harm caused by the pulses.
  • the disadvantages of such a circuit stem from its relatively high costs, high loss of wattage, and self-heating. Furthermore, the rating of the pulse transformer included in the circuit limits the wattage of the lamps which it can ignite.
  • ignitor circuits can be improved by adding a timing unit thereto, which will limit the time during which the high voltage pulses are generated.
  • Ignitor types including timing units are also available, but they still partly suffer from the disadvantages discussed above.
  • the present invention combines the advantages of supplying the ignition pulses as required by the lamp, protecting the ballast insulation and other circuit components, and low cost. Furthermore, the invention provides the option of monitoring the lamp and other circuit components.
  • the invention therefore provides an ignitor circuit for a discharge lamp, comprising a magnetic ballast having a coil equipped with at least one tapping enabling said ballast to be utilized as a pulse transformer; electronic switching means electrically connected to said ballast, and a programmable electronic control unit connected to said switching means and discharge lamp for activating said electronic switching means in accordance with a specific discharge lamp's specifications and the position of the tapping along the coil of said ballast.
  • Fig. 2 there is illustrated a block diagram of a preferred embodiment of a programmable ignitor 2.
  • the electrical energy flows from the mains via line 4 through the magnetic ballast 6 into the discharge lamp 8.
  • the ballast 6 is equipped with a tapping 10 (Fig. 3).
  • the ballast is also connected to a switching means 12 via a buffer 14.
  • the joint operation of the switching means 12 and the magnetic ballast 6 is utilized to generate the high voltage pulses required for the process of igniting the lamp.
  • the programmable control means 16 has two main functions: (a) to operate switching means 12 according to a certain program, and (b) to monitor the circuit and use the collected data at 18 to adapt its own program, as well as to send said data to an external computer (not shown) for further processing and display.
  • Fig. 3 illustrates, in detail, a preferred embodiment of the programmable ignitor 2.
  • High voltage pulses are generated at the output of ballast 6 by switching on the sum of the voltages of the mains and capacitor C2 across a shorter portion 6', e.g., a ratio of 1:11 of the ballast coil, for short periods of time.
  • the switching is performed by a bilateral switching device, e.g., triac 20 at a predetermined range of electrical degrees.
  • the combination of diode D2 with resistors R4 and R6 enables the controller U1 to identify the zero crossing of the mains voltage.
  • the voltage divider R3, R5 enables U1 to measure and monitor the lamp's voltage.
  • Zener diode D1, resistor R8 and capacitor C1 constitute the power supply of U1.
  • Fig. 3 features, inter alia , the following advantages:
  • Fig. 4 illustrates in detail a further preferred embodiment of a programmable ignitor according to the present invention, which is a modification of the ignitor described above with reference to Fig. 3.
  • the embodiment of Fig. 4 differs from that of Fig. 3 mainly in the following details:
  • Diode D2 and its parallel resistor (R6 in Fig. 3) are eliminated.
  • Supply to port 7 of U1 is effected through a resistor R9 of larger value, whereby the DC supply is charged during both halves of the mains cycle, at better stability and with less loss of wattage.
  • the embodiment thus uses a smaller number of components, and the triac 20 can be triggered by a negative pulse. Thereby, this circuit can use triacs that do not operate at Quadrant IV, which are more reliable and cost less.
  • an inductor 22 is connected in series with the triac 20 for lowering the triac's current rate of change ( di/dt ) in order to lengthen its lifetime.
  • Other minor changes seen in the circuit are considered to be changes which will be obvious to one skilled in the art.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
EP01123778A 2000-10-05 2001-10-04 Zündschaltung für Entladungslampen Withdrawn EP1196012A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL13889600 2000-10-05
IL13889600A IL138896A0 (en) 2000-10-05 2000-10-05 An ignitor for discharge lamps

Publications (2)

Publication Number Publication Date
EP1196012A2 true EP1196012A2 (de) 2002-04-10
EP1196012A3 EP1196012A3 (de) 2004-08-11

Family

ID=11074714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01123778A Withdrawn EP1196012A3 (de) 2000-10-05 2001-10-04 Zündschaltung für Entladungslampen

Country Status (2)

Country Link
EP (1) EP1196012A3 (de)
IL (1) IL138896A0 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004098244A1 (de) * 2003-04-30 2004-11-11 Tridonicatco Gmbh & Co. Kg Zündschaltung mit geregelter zündspannung
EP1494508A2 (de) 2003-07-03 2005-01-05 Elektrobau Oschatz GmbH & Co. KG Universelles Zündgerät
ITCZ20090016A1 (it) * 2009-08-27 2011-02-28 Edp Srl Alimentatore elettronico dimmerabile capace di controllare con continuità la potenza fornita ad una lampada a scarica di gas e metodo di controllo della potenza.
US7915837B2 (en) 2008-04-08 2011-03-29 Lumetric, Inc. Modular programmable lighting ballast
US8143811B2 (en) 2008-06-25 2012-03-27 Lumetric, Inc. Lighting control system and method
US8294376B2 (en) 2010-05-30 2012-10-23 Lumetric Lighting, Inc. Fast reignition of a high intensity discharge lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0479351A2 (de) * 1990-09-12 1992-04-08 Koninklijke Philips Electronics N.V. Selbstanpassende Startschaltung
DE19531622A1 (de) * 1995-08-28 1997-03-06 Tridonic Bauelemente Zündschaltung für eine Hochdruck-Gasentladungslampe
EP1043917A2 (de) * 1999-04-09 2000-10-11 Thomas & Betts International, Inc. Zündschaltung für eine Beleuchtungsanordnung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0479351A2 (de) * 1990-09-12 1992-04-08 Koninklijke Philips Electronics N.V. Selbstanpassende Startschaltung
DE19531622A1 (de) * 1995-08-28 1997-03-06 Tridonic Bauelemente Zündschaltung für eine Hochdruck-Gasentladungslampe
EP1043917A2 (de) * 1999-04-09 2000-10-11 Thomas & Betts International, Inc. Zündschaltung für eine Beleuchtungsanordnung

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004098244A1 (de) * 2003-04-30 2004-11-11 Tridonicatco Gmbh & Co. Kg Zündschaltung mit geregelter zündspannung
US7462992B2 (en) 2003-04-30 2008-12-09 Tridonicatco Gmbh & Co. Kg Starter circuit having regulated starter voltage
AU2004234940B2 (en) * 2003-04-30 2009-06-25 Tridonicatco Gmbh & Co. Kg Starter circuit having regulated starting voltage
CN1781343B (zh) * 2003-04-30 2011-06-08 三多尼克爱特克两合股份有限公司 具有调节的点火电压的点火电路
EP1494508A2 (de) 2003-07-03 2005-01-05 Elektrobau Oschatz GmbH & Co. KG Universelles Zündgerät
US7915837B2 (en) 2008-04-08 2011-03-29 Lumetric, Inc. Modular programmable lighting ballast
US8143811B2 (en) 2008-06-25 2012-03-27 Lumetric, Inc. Lighting control system and method
US8670873B2 (en) 2008-06-25 2014-03-11 Lumetric Lighting, Inc. Lighting control system and method
ITCZ20090016A1 (it) * 2009-08-27 2011-02-28 Edp Srl Alimentatore elettronico dimmerabile capace di controllare con continuità la potenza fornita ad una lampada a scarica di gas e metodo di controllo della potenza.
US8294376B2 (en) 2010-05-30 2012-10-23 Lumetric Lighting, Inc. Fast reignition of a high intensity discharge lamp

Also Published As

Publication number Publication date
EP1196012A3 (de) 2004-08-11
IL138896A0 (en) 2001-11-25

Similar Documents

Publication Publication Date Title
US4904903A (en) Ballast for high intensity discharge lamps
WO1999001013A2 (en) Apparatus and method for dimming a gas discharge lamp
US8288958B2 (en) Dynamic application of cut-out pulses in alternating current power
EP0337554A1 (de) Schaltungsanordnung
US5962988A (en) Multi-voltage ballast and dimming circuits for a lamp drive voltage transformation and ballasting system
US4890041A (en) High wattage HID lamp circuit
US4642525A (en) Transient control circuit for fluorescent lamp systems
US5801494A (en) Rapid restrike with integral cutout timer
CA1204816A (en) Starter circuit for gaseous discharge lamp
EP1196012A2 (de) Zündschaltung für Entladungslampen
US4339695A (en) High pressure sodium lamp ballast circuit
US6373199B1 (en) Reducing stress on ignitor circuitry for gaseous discharge lamps
US4996464A (en) Ignitor disabler
EP0031933A2 (de) Betriebsschaltung niedriger Spannung für Fluoreszenzlampen
US7161312B2 (en) Distributed fluorescent light control system
US8384369B2 (en) Microprocessor controlled variation in cut-out pulse application in alternating current power
CA1060536A (en) Starting and operating circuit for gaseous discharge lamps
US20120025728A1 (en) Hid lamp ignitor
CN101946563B (zh) 用于控制放电灯的设备
US4792729A (en) Fluorescent lamp brightness control
JPS63999A (ja) ガス放電ランプ用高周波バラスト
EP0011508B1 (de) Verfahren zur Ermittlung von Bauteilenwerten für eine Steuerschaltung für eine Gasentladungslampe
EP1285558B1 (de) Zündvorrichtung mit störkapazitätsunterdrücker
JP2010519715A (ja) 高圧放電ランプの電力適合化のための回路装置および方法
US8203273B1 (en) Ballast circuit for a gas discharge lamp that reduces a pre-heat voltage to the lamp filaments during lamp ignition

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

Kind code of ref document: A2

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

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20050204

AKX Designation fees paid

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

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: 20060503