EP1932398A1 - Dynamische wendelheizung - Google Patents
Dynamische wendelheizungInfo
- Publication number
- EP1932398A1 EP1932398A1 EP06776652A EP06776652A EP1932398A1 EP 1932398 A1 EP1932398 A1 EP 1932398A1 EP 06776652 A EP06776652 A EP 06776652A EP 06776652 A EP06776652 A EP 06776652A EP 1932398 A1 EP1932398 A1 EP 1932398A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heating
- gas discharge
- light level
- dimming
- operating device
- 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
- 238000010438 heat treatment Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims description 6
- 230000002123 temporal effect Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 description 10
- 230000006978 adaptation Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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
- H05B41/295—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 with preheating electrodes, e.g. for fluorescent lamps
Definitions
- the present invention relates to the control and / or regulation of the heating operation of a
- Heating coil of a gas discharge lamp as is typically carried out by operating devices for gas discharge lamps.
- heating parameters in particular heating current
- These heating parameters are usually determined as a function of the lamp power of the gas discharge lamp, so that different heating parameters result for different light levels.
- such regulations are set for static operation, in which therefore the lamp output does not change at all or only over a very long period of time.
- the invention addresses this problem and provides a solution as to how unnecessary shortening of the service life of the heating coil during static and also during non-static dimming operation of the gas discharge lamp can be avoided.
- a method for operating a dimmable operating device for a gas discharge lamp is proposed, wherein the gas discharge lamp has at least one heating coil.
- a light level can be specified in the form of a dimming command. If an applied dimming command, for example, instructs a higher output of the gas discharge lamp compared to the current output of the connected gas discharge lamp, the operating device sets an increased heating current at the heating coil.
- This increased heating current corresponds to the sum of the value, which is given for example by the lamp manufacturer for the instructed higher power of the gas discharge lamp in static operation and a correction value, which takes into account the dynamic load of the coil. Only when the increased heating current to the heating coil has then also set, is the temporal delayed the dimming command corresponding higher power of the gas discharge lamp set by the operating device. After the system has settled, it is possible to set the static heating current to the value specified by the lamp manufacturer. For energy-optimized operation of the lamp, for example, at very low light levels, a further adjustment (reduction) of the heating current is also possible at a longer stationary light level.
- the invention further provides that the heating current is set not only dependent on the static states of the dimming operation, but also on the dynamics, ie the temporal changes of the dimming operation.
- an operating device can set the heating current I for the heating coil as a function of the time change of the dimming value in a defined preceding time interval dt.
- the higher the dimming dynamics the higher the heating current can be set.
- the invention also relates to a control module for a control device for gas discharge lamps, which is designed to carry out a method of the type mentioned.
- the invention also relates to a dimmable control device for gas discharge lamps, which has such a control module.
- the invention also relates to a computer software program product implementing such a method when running on a computing device.
- FIG. 1 shows schematically a system according to the present invention and for carrying out the method according to the invention
- Fig. 2 shows timing charts for explaining the present invention.
- an operating device which may be, for example, an electronic ballast (ECG).
- ECG electronic ballast
- This operating device controls the operation of a gas discharge lamp 8, which has at least one heating coil 15.
- the operating device can be provided with an interface 2, by means of which the operating device in particular digital setpoint values for light levels can be supplied via a bus line 1, for example.
- the operating device is basically designed to control the operation of the lamp 8 such that the actual light output of the lamp 8 substantially corresponds to an external example.
- a dimming predetermined light level 1 wherein the supply of light level via a bus only one way Setpoint specification represents.
- an electronic ballast control unit 3 outputs a desired light value 4 to a unit 5, which performs a lamp power / lamp current calculation and in turn drives a lamp control unit 6.
- the unit 5 gives the lamp control unit 6 a desired value by means of which the power of the lamp 8 can be controlled.
- this specification may be the operating frequency of a half-bridge for generating the high-frequency operating voltage for the lamp 8.
- any other control values, such as operating voltage or operating current of the lamp 8 are conceivable.
- Depending on the supplied control value from the unit 5 controls the lamp control 6 by means of a power amplifier 7 according to the operation of the lamp 8 at.
- a parameter 10 is returned to the lamp control 6, wherein the parameter 10 is an indication of the current lamp power and, for example, the lamp current and / or the lamp voltage can be. In this case, so there is a lamp power control.
- the electronic ballast controller 3 further outputs a coil heating target value 11 depending on the supplied target light level 1 to a coil heating calculation unit 12, for example, for adaptation and pilot control. Furthermore, the electronic ballast control 3 outputs an adaptation target value 9 to this unit 12, by means of which the type of adaptation and feedforward control can be influenced by the unit 12.
- a coil heating control and / or regulating unit 13 is actuated, which outputs a control value for the coil heating 15, which is amplified by means of a power amplifier 14.
- a parameter 16 representing the heating power can be returned from the coil 15 to the control and / or regulating unit 13.
- This parameter of the heating power can be, for example, the heating current and / or the heating voltage.
- the parameter 10 representing the lamp power is also fed back to the coil heating calculation, adaptation and pilot control unit 12.
- the illustrated operating device is designed as a digitally controlled dimmable device
- the information about the desired future light level can be made available in a comparatively simple manner for a number of independent control processes shortly before execution of the default. These control processes can be carried out, for example, temporally shortly before the activation of the lamp to the currently existing default value.
- the filament heating i.
- the setting of the filament heating current depends not only on the static parameters of the lamp power control, but also on the dynamics of the lamp power control, i. the dimming dynamics are executed.
- a heating power parameter eg, the
- WendelMapstrom or the heating voltage adapted to a value for optimal life in stationary operation, in particular lowered.
- the heating current can be adapted, in particular raised, to that which is intended for steady-state operation and deviates from that set value for the helical heating.
- the heating power can be temporarily increased above the nominal value ("overheating"), while at a Dimming jump from 100% to 1% light level, the heating power can be temporarily reduced below the nominal value ("underheating").
- a continuous heating value (static or steady-state calorific value) deviating from the temporary calorific value can be set.
- the coil heating can be adjusted to an adapted coil heating value within the limits specified by the lamp manufacturer under dynamic loading of the system, in particular over a longer period of time become.
- the filament heating can then be operated for a short time outside of the values specified by the lamp manufacturer for faster thermal oscillation of the filament.
- the change in the lamp current compared to the change in the filament heating can be delayed or accelerated slightly, especially in non-time critical applications.
- the effect of the thermal time constant of the coil can be better compensated and the negative sputtering effect can be avoided with otherwise set to optimum value for the lifetime coil heating.
- the minimized stationary auxiliary heating of the coil heating also leads to a better efficiency of the overall system luminaire. Especially at low dimming levels, ie at low lamp power and the necessary highest filament heating (to reduce cooling of the coil), this saving has a significant effect on the overall efficiency of the lamp.
- Fig. 2 is shown by way of example (see the period of 5-15 seconds) in static dimming the heating level can be lowered.
- the light level changes see the range of about 45 to 55 seconds
- the heating current of the filament heater can be raised beyond the value for static operation (100% value).
- the heating level is to be increased at lower light levels.
- An advantageous application of the invention is, for example.
- emergency mode being switched from a normal light level to an emergency light level.
- the heater can be temporarily (temporarily) operated with a first lamp-optimized calorific value, before a low steady calorific value, which protects the resources (battery, etc.), is set.
- the stationary, lower calorific value is not set in the long-term in test mode, but only in real emergency lighting mode.
- the stationary calorific value can otherwise be "zero" in emergency lighting mode, ie it is switched off.
Landscapes
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005047985A DE102005047985A1 (de) | 2005-10-06 | 2005-10-06 | Dynamische Wendelheizung |
| PCT/EP2006/007800 WO2007039010A1 (de) | 2005-10-06 | 2006-08-07 | Dynamische wendelheizung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1932398A1 true EP1932398A1 (de) | 2008-06-18 |
| EP1932398B1 EP1932398B1 (de) | 2011-06-08 |
Family
ID=37649514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06776652A Not-in-force EP1932398B1 (de) | 2005-10-06 | 2006-08-07 | Dynamische wendelheizung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1932398B1 (de) |
| AT (1) | ATE512568T1 (de) |
| DE (1) | DE102005047985A1 (de) |
| WO (1) | WO2007039010A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007047141A1 (de) | 2007-10-02 | 2009-04-09 | Tridonicatco Gmbh & Co. Kg | Betriebsgerät zum Steuern des Einbrennvorganges einer Lampe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59207908D1 (de) * | 1992-09-24 | 1997-02-27 | Knobel Lichttech | Schaltungsanordnung zum Betrieb einer Leuchtstofflampe und zur Messung des Lampenstroms |
| US5656891A (en) * | 1994-10-13 | 1997-08-12 | Tridonic Bauelemente Gmbh | Gas discharge lamp ballast with heating control circuit and method of operating same |
| SE520653C2 (sv) * | 1998-02-18 | 2003-08-05 | Pls Systems I Hestra Ab | Anordning för användning vid drift av en eller flera urladdningslampor |
| CN1589593A (zh) * | 2001-11-23 | 2005-03-02 | 皇家飞利浦电子股份有限公司 | 加热放电灯的电极的设备 |
-
2005
- 2005-10-06 DE DE102005047985A patent/DE102005047985A1/de not_active Withdrawn
-
2006
- 2006-08-07 AT AT06776652T patent/ATE512568T1/de active
- 2006-08-07 EP EP06776652A patent/EP1932398B1/de not_active Not-in-force
- 2006-08-07 WO PCT/EP2006/007800 patent/WO2007039010A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2007039010A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1932398B1 (de) | 2011-06-08 |
| ATE512568T1 (de) | 2011-06-15 |
| WO2007039010A1 (de) | 2007-04-12 |
| DE102005047985A1 (de) | 2007-04-12 |
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