EP2529597A2 - Verfahren zum betreiben einer gasentladungslampe und gasentladungslampensystem - Google Patents
Verfahren zum betreiben einer gasentladungslampe und gasentladungslampensystemInfo
- Publication number
- EP2529597A2 EP2529597A2 EP11714761A EP11714761A EP2529597A2 EP 2529597 A2 EP2529597 A2 EP 2529597A2 EP 11714761 A EP11714761 A EP 11714761A EP 11714761 A EP11714761 A EP 11714761A EP 2529597 A2 EP2529597 A2 EP 2529597A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- gas discharge
- discharge lamp
- frequency
- electrodes
- 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.)
- Granted
Links
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
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
-
- 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
Definitions
- the invention relates to methods for operating a gas discharge lamp, the gas discharge lamp having a discharge vessel, in the cavity of which two electrodes protrude, and at least one auxiliary ignition element, wherein a high-frequency alternating voltage is applied to the electrodes during ignition.
- the invention also relates to a gas discharge lamp system having at least one gas discharge lamp and a control device for activating the at least one gas discharge lamp.
- ballast pulse ignition For mercury-free discharge lamps ignition is usually used by means of a ballast pulse ignition with the ignition parameters dU / dt> 70 kV / us and a voltage of more 20 kV.
- Mercury-free discharge lamps with capacitive starting aid ignite at these pulse parameters at an ignition voltage of about 16 kV, which results in practice high scattering both between the lamps as well as the ignitions of the individual lamps.
- the ignition voltages can far exceed the ignition pulse provided by the ballast. This can lead both to an increased reject rate during production of the discharge lamps and to a poor ignition behavior of the system of discharge lasape and ballast.
- the high voltages of the ignition pulse require a great effort techni Service and thus high costs for the system.
- WO 01/73817 A1 describes a gas discharge lamp which has a burner which has a discharge vessel with a cavity in which a filling with gas and other substances is arranged. In the cavity protrude two electrodes, between which an arc is formed during operation of the gas discharge lamp. On the outside of the discharge vessel, two auxiliary electrodes of opposite polarity are arranged opposite one another in the region of the cavity. The auxiliary electrodes are formed by coating the outside of the discharge vessel with electrically conductive material. Before and possibly also during the ignition of the gas discharge lamp, high frequency high voltage is applied to the auxiliary electrodes, whereby the ignition of the gas discharge lamp is facilitated.
- WO 2004/090934 A1 describes a high-pressure discharge lamp comprising a light bulb which extends from one side of a lighting unit with a discharge space therein and a pair of sealing units which pass through this lighting unit and a pair of electrodes disposed in the discharge space of the lighting unit, wherein a part of an environmental conductor in a specific area of an arc tube is wound on a sealing unit in a nearly spiral shape, and the remaining part of the environmental conductor is over protrudes the outer part of an arc tube, which is to be electrically connected to an electrode on the other sealing unit side.
- WO 2006/064408 A1 describes a high frequency lamp circuit for a gas discharge lamp, the lamp circuit having a series connection of an AC supply source for supplying an AC voltage, having a high lamp operating frequency, a ballast inductor, a capacitor and terminals for connection to a gas discharge lamp and, connected to the terminals Ignition circuit for igniting the lamp.
- the capacitor has a value representing a low impedance for the lamp operating frequency.
- the ignition circuit has a series arrangement of an impedance and a DC voltage source for supplying a high DC voltage.
- the series impedance of the ignition circuit has a value which is high with respect to an impedance value of the lamp during startup and during continuous operation of the lamp.
- This object is achieved according to the features of the independent claims. Preferred embodiments are in particular the dependent claims.
- the object is achieved by a method for operating a gas discharge lamp, wherein the gas discharge lamp has a discharge vessel, in the cavity of which two electrodes protrude, and at least one Zündangeselement, wherein the electrodes during ignition of the gas discharge lamp with a high-frequency alternating voltage superimposed DC voltage is applied.
- This embodiment allows a significant reduction of the required ignition voltage in comparison to a use of an ignition pulse.
- the combination of the DC voltage and the high-frequency AC voltage with a lower amplitude of the high-frequency voltage can be realized than with an exclusively high-frequency ignition, whereby simpler and less expensive ballasts, in particular electronic ballasts (ECG), can be used.
- ECG electronic ballasts
- Another advantage is that only a lower ionization of the live parts of the installation (base, leads, etc.) occurs.
- the dielectric strength of the corresponding components can be chosen to be lower than in the exclusively high-frequency ignition.
- the capacitive ignition aid acts on at least one electrode protruding into the discharge vessel.
- the DC voltage in its amount ramped, in particular approximately linearly, is increased over time, Alternatively, the DC voltage can be applied eg directly to the desired voltage level.
- the DC voltage ramp is traversed within about 1 s, in particular within about 500 ms.
- the DC voltage up to a magnitude of stress level of max. 8 kV, in particular max. 7 kV, is set.
- the high-frequency AC voltage has a peak amplitude between 3 kV and 6 kV, in particular between 4 kV and 5 kV. It is also an embodiment that the high-frequency AC voltage has a frequency between 100 kHz and 4 MHz. Thus, the high-frequency AC voltage has a frequency between 100 kHz and 400 kHz, in particular between 150 kHz and 300 kHz, which facilitates a design of the high-frequency components and allows use of cheaper components. Alternatively, the high frequency AC voltage may be e.g. have a frequency from about 1 MHz, in particular between about 1 MHz and about 4 MHz, whereby an effectiveness of the energy input can be increased.
- the discharge vessel has a mercury-free filling (mercury-free discharge lamp).
- the at least one capacitive starting aid can, for example, coat an auxiliary starting layer, an auxiliary starting wire, a coating te crush, a return conductor, a surrounding the discharge vessel reflector or the like.
- the at least one ignition aid can be galvanically coupled to one of the two lamp contacts or constructed without galvanic contacting with one of the two lamp contacts (potential-free floating).
- the high-frequency AC voltage or the proportion of high-frequency AC voltage is equal to or greater than the voltage required for a takeover of the lamp.
- a gas discharge lamp system having at least one gas discharge lamp and a control device for activating the at least one gas discharge lamp, the at least one gas discharge lamp having a discharge vessel, in the cavity of which two electrodes protrude, and at least one auxiliary starting element, and the control device is set up to to apply to the electrodes of the respective gas discharge lamps superimposed with a high-frequency AC voltage DC voltage.
- Pig. 1 shows a discharge lamp with a capacitive
- Fig. 2 shows a plot of a (negative) voltage applied to the discharge lamp of Fig. 1 on the ordinate over time on the abscissa;
- Fig.l shows a gas discharge lamp 1 with a discharge vessel 2, in the cavity 3, two electrodes 4a, 4b and the cavity 3 is filled with a mercury-free steam filling.
- a capacitive Zündangeselement (“capacitive ignition aid") 5 is present.
- the Zündangeselement 5 forms here to each of the electrodes 4a, 4b towards a capacity which is up or reloaded with each half-wave of a high-frequency alternating voltage.
- the Zündoselement 5 can at least one Zündanges Mrs, Zündosdraht, coated pinch, return conductors o.ä. include.
- the Zündoselement 5 can basically form a capacitance with two electrodes 4a, 4b or only one of the electrodes 4a, 4b.
- two Zündoside 5, each with an electrode 4a, 4b form a capacity.
- the ignition is controlled by an electronic ballast 6, which here for the ignition of the gas discharge lamp 1 here to the two electrodes 4a, 4b a combination of a DC voltage and a high frequency AC voltage ('high frequency voltage') applies, as explained in more detail in Figure 2;
- FIG. 2 shows a plot of a voltage U applied to the electrodes 4a, 4b of the discharge lamp 1 by means of the electronic ballast 6 in the form of a combination of a (here negatively applied) DC voltage and a high-frequency AC voltage in kV on the ordinate or yaxis over the Time t in ms on the abscissa or x-axis.
- the electronic ballast 6 Up to just t-100 ms, the electronic ballast 6 generates a pure high-frequency alternating voltage, which has a peak amplitude or peak voltage (peak-to-Spit2e) Us of about 4.5 kV at a frequency of about 180 kHz.
- FIG. 3 shows a frequency distribution of a number N of similar discharge lamps on the ordinate distributed over the firing voltage Uz in kV on the abscissa required for the ignition of the respective discharge lamp, both for ignition by means of an ignition pulse P and alternatively for ignition by means of the Combination K from the DC voltage and the high-frequency AC voltage.
- the breakdown voltage or ignition voltage of the discharge lamps is indicated on ignition on a first rising edge of the ignition pulse P. Ignitions off the first rising edge of the firing pulse P (e.g., on a falling edge or during a following half-wave) are indicated by the dotted-off break in the distribution at approximately 18.5 kV,
- the distribution maximum for the combination K from the DC voltage and the high-frequency AC voltage is only between about 9 kV and 10 kV.
- the scatter or standard deviation of the distribution for the combination K is narrower than for the pulse-like ignition, which allows a simpler design of the ballast and / or a smaller reject.
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010028222A DE102010028222A1 (de) | 2010-04-27 | 2010-04-27 | Verfahren zum Betreiben einer Gasentladungslampe und Gasentladungslampensystem |
PCT/EP2011/055896 WO2011134800A2 (de) | 2010-04-27 | 2011-04-14 | Verfahren zum betreiben einer gasentladungslampe und gasentladungslampensystem |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2529597A2 true EP2529597A2 (de) | 2012-12-05 |
EP2529597B1 EP2529597B1 (de) | 2017-05-31 |
Family
ID=44625868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11714761.1A Not-in-force EP2529597B1 (de) | 2010-04-27 | 2011-04-14 | Verfahren zum betreiben einer gasentladungslampe und gasentladungslampensystem |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2529597B1 (de) |
JP (1) | JP5627766B2 (de) |
CN (1) | CN102870500A (de) |
DE (1) | DE102010028222A1 (de) |
WO (1) | WO2011134800A2 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3016480A3 (de) * | 2014-10-02 | 2016-07-06 | Atlas Material Testing Technology, Llc. | Zündungsfreie stromversorgung für xenonlampen in einer beschleunigten wettertestvorrichtung |
JP6174652B2 (ja) | 2015-10-05 | 2017-08-02 | ファナック株式会社 | 加工エリアの大きさによるパラメータの自動選定機能を有する数値制御装置 |
CN113631677A (zh) | 2019-03-28 | 2021-11-09 | 日东电工株式会社 | 固化型粘合粘接片、及固化型粘合粘接片的制造方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0689793A (ja) * | 1992-09-09 | 1994-03-29 | Kansei Corp | 放電灯駆動回路 |
AU777640B2 (en) | 2000-03-28 | 2004-10-28 | Robert Bosch Gmbh | Gas discharge lamp with ignition assisting electrodes, especially for automobile headlights |
DE10233400A1 (de) * | 2002-07-23 | 2004-02-12 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Schaltungsanordnung zum Betrieb von Entladungslampen |
JP4022559B2 (ja) | 2003-04-09 | 2007-12-19 | 松下電器産業株式会社 | 高圧放電ランプ、高圧放電ランプの点灯方法及び点灯装置、高圧放電ランプ装置、並びにランプユニット、画像表示装置、ヘッドライト装置 |
EP1632985B1 (de) * | 2004-09-07 | 2014-06-25 | OSRAM GmbH | Hochdruckentladungslampe |
CN101080953A (zh) | 2004-12-14 | 2007-11-28 | 皇家飞利浦电子股份有限公司 | 高频气体放电灯电路 |
DE102006010803A1 (de) * | 2006-03-07 | 2007-09-13 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Verfahren zur Herstellung einer Entladungslampe und eine nach einem derartigen Verfahren hergestellte Lampe |
KR20100031752A (ko) * | 2007-06-21 | 2010-03-24 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 스타터 안테나를 포함하는 고압 방전 램프 |
JP2010010088A (ja) * | 2008-06-30 | 2010-01-14 | Phoenix Denki Kk | 補助光源付き高圧放電灯用点灯装置の始動回路、該始動回路を用いた点灯装置並びに該点灯装置を用いた光源装置 |
-
2010
- 2010-04-27 DE DE102010028222A patent/DE102010028222A1/de not_active Withdrawn
-
2011
- 2011-04-14 WO PCT/EP2011/055896 patent/WO2011134800A2/de active Application Filing
- 2011-04-14 JP JP2013506578A patent/JP5627766B2/ja not_active Expired - Fee Related
- 2011-04-14 EP EP11714761.1A patent/EP2529597B1/de not_active Not-in-force
- 2011-04-14 CN CN2011800214984A patent/CN102870500A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2011134800A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102010028222A1 (de) | 2011-10-27 |
JP5627766B2 (ja) | 2014-11-19 |
WO2011134800A2 (de) | 2011-11-03 |
JP2013525984A (ja) | 2013-06-20 |
CN102870500A (zh) | 2013-01-09 |
EP2529597B1 (de) | 2017-05-31 |
WO2011134800A3 (de) | 2012-06-21 |
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