EP2260682B1 - Verfahren und betriebsgerät zur minimierung der isolationsbeanspruchung eines hochdruckentladungslampensystems - Google Patents

Verfahren und betriebsgerät zur minimierung der isolationsbeanspruchung eines hochdruckentladungslampensystems Download PDF

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Publication number
EP2260682B1
EP2260682B1 EP08735438.7A EP08735438A EP2260682B1 EP 2260682 B1 EP2260682 B1 EP 2260682B1 EP 08735438 A EP08735438 A EP 08735438A EP 2260682 B1 EP2260682 B1 EP 2260682B1
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EP
European Patent Office
Prior art keywords
starting
lamp
time
duration
voltage
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.)
Not-in-force
Application number
EP08735438.7A
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German (de)
English (en)
French (fr)
Other versions
EP2260682A1 (de
Inventor
Alois Braun
Joachim MÜHLSCHLEGEL
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
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Osram GmbH
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Publication date
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Publication of EP2260682A1 publication Critical patent/EP2260682A1/de
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Publication of EP2260682B1 publication Critical patent/EP2260682B1/de
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    • 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
    • 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 invention relates to a method for minimizing the insulation stress when igniting a high-pressure discharge lamp, with a control gear, generates a high voltage to ignite the high-pressure discharge lamp, and this method Ausstoryt.
  • the invention is based on a method for minimizing the insulation stress during ignition of a high-pressure discharge lamp according to the preamble of the main claim.
  • Conventional operating devices for high-pressure discharge lamps usually use a fairly simple method to ignite a high-pressure discharge lamp.
  • the high-pressure discharge lamp also referred to below as a lamp, is supplied with high-voltage pulses which have a sufficient voltage to produce a dielectric breakdown in the discharge lamp between the lamp electrodes. Since not every lamp ignites immediately at the first ignition pulse, the lamp is charged with a large number of ignition pulses, which are combined to form so-called ignition pulse packages. A plurality of these Zündpulsevere is discharged at a predetermined distance to the lamp, as shown in Fig. 3 is apparent.
  • n 0..n1) to the ignition voltage time sum of a second time period (t b
  • n n1 + 1..n2) greater than 1 ⁇ 4.
  • the ignition voltage time sum is the sum of all time periods Z i , during which the amount of the ignition voltage exceeds an ignition voltage limit.
  • the ignition voltage limit is defined as the factor range of an absolute maximum value of the applied high voltages.
  • the maximum value in this case is the highest value of the amount of voltage that occurs in total for at least 2 ⁇ s while the ignition voltage is applied. If the ratio of the ignition voltage time sums greater than 1 ⁇ 4, then this offers the advantage of a low insulation stress.
  • the factor range is preferably between 0.6 and 0.95, more preferably between 0.8 and 0.9.
  • the duration of the first period (t a ) is preferably between 1 s and 2 min, more preferably between 30 s and 1 min.
  • the duration of the second time interval (t b ), however, is preferably between 15 minutes and 25 minutes, more preferably 20 minutes.
  • a cold high-pressure discharge lamp can be particularly well ignited.
  • the ignition pulse packets generated in the second time period (t b ) with a packet duration of 0.05 s - 0.15 s with a distance between two ignition pulse packets of 30 s - 7 min are hot on the ignition High pressure discharge lamp optimized. If a lamp breakdown is detected in the second period (t b ), the generation of an ignition pulse packet with a packet duration of 0.5 s - 1.5 s can start the high-pressure discharge lamp even better. With this measure, a safe lamp ignition can be generated from a first dielectric breakthrough.
  • ignition coil packets with a packet duration of 0.5 s-1.5 s are preferably generated for a first time interval (t a ), which have a spacing between two ignition pulse packets of 7 s - 35 s , Thus, a cold high-pressure discharge lamp can be started optimally, further ignition pulses are not necessary.
  • the distance between two Zündpulswen for the first period (t a ) is 7s - 35s
  • the distance between two Zündpulswen for the second period (t b ) is 30s - 7min.
  • Fig. 1a shows a graphical representation of a first method according to the invention for minimizing the insulation stress when igniting a high-pressure discharge lamp in the case of a cold lamp.
  • the voltage applied to the lamp ignition voltage is applied, on the transverse axis of the elapsed time since the first ignition pulse z. Since a cold lamp can be ignited immediately, only a few Zündpulsevere should be applied one behind the other to the lamp. If the lamp does not light until then, it must be assumed that it is defective or no lamp is present. In the present embodiment, there are two Zündpulsevere executed in succession, but have a fairly long packet duration to overcome the poor ionization of the lamp in the cold state.
  • an ignition voltage having a first intensity IN ta is applied to the lamp to start it.
  • no ignition pulses are applied to the lamp.
  • the intensity is the sum of all the ignition pulses Z applied to the lamp in this time period per unit of time or the absolute duration of the time during the first period of time applied to the high pressure discharge lamp ignition voltage per unit time.
  • Fig. 1b shows a graphical representation of a first method according to the invention for minimizing the insulation stress when igniting a high-pressure discharge lamp in the case of a hot lamp.
  • the lamp must first cool to be ignited, so continuous exposure of the ignition pulse lamp from the beginning, as described in the prior art, is not optimal. Therefore, an optimized method is used which provides longer time periods between the ignition pulses. Since the lamp state measurement implemented in the operating device may be very inaccurate, it may be that the lamp has already cooled down a long way, and therefore it is ready to ignite after a short time. Therefore, ignition pulses are still generated from the beginning to cover this case.
  • an ignition voltage having a first intensity IN ta is applied to the lamp for a predetermined first time period t a .
  • an ignition voltage having a predetermined second intensity IN tb is applied to the lamp for a predetermined second time period t b .
  • the predetermined second time interval t b is significantly longer than the predetermined first time period t a .
  • the predetermined second intensity IN tb of the ignition voltage is lower than the predetermined first intensity IN ta .
  • Fig. 2a shows the representation of a second method according to the invention for minimizing the insulation stress when igniting a high-pressure discharge lamp in a first variant.
  • the second method according to the invention is a simplified variant in which no measurement of the state of the lamp is made. As a result, the operating device can be made much simpler and thus cheaper.
  • the procedure since the control gear does not know the condition of the lamp, the procedure must be suitable for both cold and hot lamps. Since it has been shown that cold lamps require ignition pulse packages with a longer package duration for optimal ignition due to their low tendency to ionise, at the beginning as in the first method according to the invention with hot lamps, a few long ignition pulse packages are generated for the period t a .
  • Fig. 2b shows the representation of a second method according to the invention for minimizing the insulation stress when igniting a high-pressure discharge lamp in a second variant.
  • the second variant is similar to the first variant, only the strategy for the ignition of a hot lamp is another.
  • a Zündpulsb is applied to the lamp for the ignition of a hot lamp at very large intervals for the period t b , which is similar to that for the cold ignition.
  • the fact that the distances between the Zündpulsween are even greater than in the first variant, the Zündnapss-time total during the period t b compared to the prior art also be significantly reduced.
  • This variant is suitable for high-pressure discharge lamps, which have a bad ignitability even when hot, which is why this second variant compared to the first variant also defined for the hot ignition Zündpuls sometimese with a longer package duration.
  • a third variant the in Fig. 2c is shown, the methods are combined according to the first and the second variant.
  • the cold ignition already described above for the period t a is first performed with a few long Zündpulsween. Then it switches to an ignition strategy as in the first variant. At short intervals, short ignition pulse packets are applied to the lamp for the time t b .
  • the Zündpulsb is significantly prolonged in order to ignite the lamp in the further course safely.
  • this strategy one achieves a significant reduction of the ignition voltage time sum while improving the lamp ignition. The entire insulation in the high voltage range, including the lamp socket and the creepage distances in the operating device, are thus protected.
  • the duration of the first time period t a is then between 1 s and 2 min, particularly advantageously between 30 s and 1 min.
  • the duration of the second period is thereafter 15min to 25min, more preferably about 20min.
  • the limit for which a high voltage applied to the lamp is still regarded as the ignition voltage pulse z is defined as the ignition voltage limit.
  • the ignition voltage limit is in the range of 60% to 95%, advantageously in the range of 80% to 90% of the maximum value of all amounts of the high voltages applied to the lamp in the period t a and in the time period t b .
  • the maximum value in this case is the highest value of the amount of voltage that occurs in total for at least 2 ⁇ s while the ignition voltage is applied.
  • Good is a ratio of 1 ⁇ 4 where a ratio of 1 ⁇ 2 is particularly advantageous.
  • the ratio of ignition voltage sums of the prior art is in the range of 1/10 to 1/40, which entails a significantly higher isolation stress than the method according to the invention.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
EP08735438.7A 2008-03-19 2008-03-19 Verfahren und betriebsgerät zur minimierung der isolationsbeanspruchung eines hochdruckentladungslampensystems Not-in-force EP2260682B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2008/053292 WO2009115120A1 (de) 2008-03-19 2008-03-19 Verfahren und betriebsgerät zur minimierung der isolationsbeanspruchung eines hochdruckentladungslampensystems

Publications (2)

Publication Number Publication Date
EP2260682A1 EP2260682A1 (de) 2010-12-15
EP2260682B1 true EP2260682B1 (de) 2013-05-08

Family

ID=40436299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08735438.7A Not-in-force EP2260682B1 (de) 2008-03-19 2008-03-19 Verfahren und betriebsgerät zur minimierung der isolationsbeanspruchung eines hochdruckentladungslampensystems

Country Status (6)

Country Link
US (1) US8941334B2 (zh)
EP (1) EP2260682B1 (zh)
KR (1) KR101532546B1 (zh)
CN (1) CN101978786B (zh)
TW (1) TW200948199A (zh)
WO (1) WO2009115120A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10403165B2 (en) * 2013-08-30 2019-09-03 Insitu, Inc. Unmanned vehicle simulation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4329621A (en) * 1980-12-15 1982-05-11 Gte Products Corporation Starter and discharge lamp starting circuit
US4763044A (en) * 1986-01-23 1988-08-09 Hubbell Incorporated Start, hot restart and operating lamp circuit
JP2562816B2 (ja) 1987-06-05 1996-12-11 松下電工株式会社 放電灯点灯装置
US5070279A (en) * 1990-07-25 1991-12-03 North American Philips Corporation Lamp ignitor with automatic shut-off feature
US5572093A (en) * 1994-09-15 1996-11-05 General Electric Company Regulation of hot restrike pulse intensity and repetition
CA2206200C (en) * 1997-04-18 2000-06-27 Matsushita Electric Works, Ltd. Discharge lamp lighting device
US6479949B1 (en) 2000-02-01 2002-11-12 General Electric Company Power regulation circuit for high frequency electronic ballast for ceramic metal halide lamp
US6359396B1 (en) * 2000-04-28 2002-03-19 Philips Electronics North America Corporation Multiple-parameter control of lamp ignition
JP2003092198A (ja) * 2001-09-18 2003-03-28 Ushio Inc 光源装置
JP4239808B2 (ja) * 2003-06-06 2009-03-18 パナソニック電工株式会社 高圧放電灯点灯装置及び照明器具
WO2005057990A1 (ja) 2003-12-12 2005-06-23 Matsushita Electric Works, Ltd. 高圧放電灯を点灯するための装置及び該装置を備えた照明器具
JP4697050B2 (ja) * 2006-05-26 2011-06-08 パナソニック電工株式会社 放電灯点灯装置及び照明器具

Also Published As

Publication number Publication date
CN101978786B (zh) 2014-06-18
WO2009115120A1 (de) 2009-09-24
TW200948199A (en) 2009-11-16
EP2260682A1 (de) 2010-12-15
KR101532546B1 (ko) 2015-07-01
CN101978786A (zh) 2011-02-16
KR20100126813A (ko) 2010-12-02
US20110018459A1 (en) 2011-01-27
US8941334B2 (en) 2015-01-27

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