EP2258149A1 - Erkennung des typs einer hid-lampe durch ein multilampen-betriebsgerät und beleuchtungssystem - Google Patents
Erkennung des typs einer hid-lampe durch ein multilampen-betriebsgerät und beleuchtungssystemInfo
- Publication number
- EP2258149A1 EP2258149A1 EP09727532A EP09727532A EP2258149A1 EP 2258149 A1 EP2258149 A1 EP 2258149A1 EP 09727532 A EP09727532 A EP 09727532A EP 09727532 A EP09727532 A EP 09727532A EP 2258149 A1 EP2258149 A1 EP 2258149A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- operating
- voltage
- operating point
- power
- 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
- 238000001514 detection method Methods 0.000 title claims description 24
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000032683 aging Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 101000583179 Homo sapiens Plakophilin-2 Proteins 0.000 description 1
- 102100030348 Plakophilin-2 Human genes 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000001629 suppression 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
- H05B41/288—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
Definitions
- the present invention relates to control gear for high pressure gas discharge (HID) lamps.
- the invention relates to operating devices which are able to discriminate the type, in particular the wattage (rated power class), of a connected HID lamp in order, for example, to set operating parameters for the HID lamp as a function of the discrimination.
- an operating device evaluates predetermined feedback variables (measured values) in order to set operating parameters for connected lighting means, for example, based on a table or function.
- the invention also relates to a lighting system comprising a luminaire with such an operating device.
- ballasts are known that have been designed for a particular lamp type, and those that can be used with different lamp types.
- multi-lamp ballasts which can operate different types of lamps ie in particular lamps with different power ratings (wattages), so there is a need that actually connected lamp and thus to recognize their wattage in order to operate optimally, ie with adjusted operating parameters (voltage, current, frequency, etc.).
- Multi-lamps or “multi-lamps” thus includes operating devices that can operate one or more lamps.
- Low-pressure gas discharge lamps can be relatively easily identified by an operating device by detecting the coil resistance. To recognize a
- Low-pressure gas discharge lamp for example, via a
- Resistance measuring element a voltage measuring element or a
- Gas discharge lamp or the outside temperature measured and fed to the evaluation of the operating device, the latter depending on the value of the detected parameters can close to a specific lamp type.
- high-pressure discharge lamps also called HID lamps, from the English term “high-intensity discharge”
- the invention has accordingly set itself the task of providing an improved technology for detecting the type, in particular the power class ("Wattage”) of a high-pressure discharge lamp, which in particular the use of multi-lamp operating devices is facilitated.
- the type in particular the power class ("Wattage") of a high-pressure discharge lamp, which in particular the use of multi-lamp operating devices is facilitated.
- the invention proposes a method for discriminating different high-pressure discharge lamps (EL) connected to a multi-lamp operating device, in particular high-pressure discharge lamps (EL) of different rated power (Pmin, Pmax).
- the discrimination is based on the gradient, in particular the sign of the gradient of the detected current / voltage characteristic of the HID lamp at a predetermined, preferably constant in all measurements operating point of the characteristic of the HID lamp.
- the operating device is thus equipped to detect the lamp voltage and the lamp current or a parameter that determines this alone or in combination and to keep the operating point constant via a control.
- a method is provided for distinguishing a high-pressure discharge lamp, which is connected to a multi-lamp operating device, at different rated powers.
- the multi-lamp operating device can produce different operating powers that correspond to the different rated powers. The following steps are planned:
- the high-pressure discharge lamp is operated with the lowest operating power.
- the operating point is not in the range of the positive-slope voltage / current characteristic, it is detected that the rated output of the connected high-pressure discharge lamp does not correspond to the operating power set in the first step.
- a method of detecting a rated power with a smaller and a larger rated power if the operating point is not in the range of the positive-voltage voltage / current characteristic, it is decided that the rated power of the connected high-pressure discharge lamp corresponds to the larger rated power.
- the first three steps of the next smallest operating power are recursively performed until the operating point is in the voltage range / Current characteristic with positive slope is located.
- the supplied operating power is preferably reduced, starting from the operating point, in such a way that a second operating point is established.
- the difference between the lamp voltage of the operating point and the lamp voltage of the second operating point is then determined.
- the lamp voltages of the operating point and the second operating point are temporarily stored.
- the slope can preferably be determined at the operating point.
- an integrated circuit is provided, which is designed for carrying out such a method.
- a multi-lamp operating apparatus for operating high-pressure gas discharge lamps having a control unit that performs such a method.
- the invention also relates to a luminaire with a light source and such a control gear. Furthermore, the invention also relates to a lighting system having a lamp with such a control gear.
- Fig. 5 is a diagram of a lamp type detection according to the invention under three different power ratings.
- FIG. 1 an embodiment of the present invention is shown schematically.
- the shown in Fig. 1 Circuitry is part of an electronic ballast and includes controllable switches S1-S4 of a DC / AC inverter, which are connected in a full bridge.
- switches S1-S4 field effect transistors are preferably used.
- a DC voltage Ubus is applied, which comes from a suitable DC voltage source of the corresponding electronic ballast, in which the circuit arrangement is used.
- the DC voltage Ubus can be generated for example by implementing an applied mains voltage by a combination of a radio interference suppression and rectifier. Alternatively, however, any other DC voltage source can be used.
- FIG. 1 is a gas discharge lamp EL, in particular a high-pressure gas discharge lamp, which is to be actuated
- the circuit arrangement shown in FIG. 1 is particularly suitable for the operation of metal halide high-pressure gas discharge lamps, which are known in the art
- High-pressure gas discharge lamps differ from low-pressure gas discharge lamps in particular in that they require higher ignition voltages and in their smaller lamp body, a higher pressure occurs.Furthermore, high-pressure gas discharge lamps have a higher luminance.
- the bridge branch of the full bridge shown in FIG. 1 is coupled to a series resonant circuit which comprises an inductance L 1 and a capacitance C 1, the capacitance C 1 being connected to a point of tapping of the inductance L 1 attacks and is connected via a further controllable switch S5 in parallel with the switch S4.
- a smoothing or filtering circuit is provided which has a further inductance L2 and a further capacitance C2, these components being connected as shown in FIG.
- On the full bridge is also a
- Resistor Rl connected as a current measuring resistor
- a voltage divider R2, R3 is used to measure the input voltage and, as already mentioned, the resistor Rl is used to measure the lamp current.
- FIG. 1 shows a central control circuit 1, which is fed by a supply voltage VDD.
- the control circuit 1 can be integrated
- Circuit in particular as a user-specific integrated circuit (Application Specific Integrated
- the suggestion of the Resonant circuit is preferably carried out by alternately switching the switches Sl and S2.
- S1-S4 is used in a manner known per se during the
- S3 are alternately activated and deactivated and thus the respective switches of the two bridge diagonals alternately or complementary to each other and switched off.
- the activated bridge diagonal consists of a high-frequency clocked switch and a low-frequency clocked switch.
- Sl, S2 are the high-frequency clocked switches and S3, S4 are the low-frequency clocked switches.
- the switching on and off of the switches S1-S4 preferably takes place with the aid of a high-frequency pulse-width-modulated control signal of the control circuit 1, which is screened with the aid of the filter elements L2 and C2 filtering or smoothing circuit, so that at the gas discharge lamp EL only the linear average current is applied.
- the power supplied to the lamp EL can thus be controlled or regulated taking into account the lamp voltage and lamp current detected by the measuring terminals M1, M2.
- the detection of the lamp EL is not tied to the full bridge circuit nor to the described operating method.
- a half-bridge circuit (with two switches connected in series and complementarily clocked) can also be selected for operating the lamp EL.
- the detection is not tied to the type of operation of the lamp EL.
- a high-frequency operation can also be selected. In this high-frequency operation, for example, a half-bridge circuit may be selected as the circuit arrangement.
- the two switches of the half-bridge circuit are alternately clocked.
- the lamp EL is also arranged in this arrangement in a series resonant circuit of at least one inductor and at least one capacitor. After the ignition of the lamp EL, this can continue to be operated with a high-frequency alternating voltage, which results in the series resonant circuit due to the alternating timing of the two switches of the half-bridge circuit by an excitation in resonance, ie the two switches are at a resonant frequency corresponding frequency (or Multiples of them; "harmonic")) of the lamp driven.To achieve a resonance excitation, it is sufficient if this frequency is only near the resonance frequency.
- Fig. 2 the voltage / current characteristic Kl of a 70 watt high pressure gas discharge lamp is shown.
- this illustrated U / I characteristic first shows a first region 11 with a negative resistance gradient, ie, up to a reversal Minimum point 13, the voltage decreases with increasing current. Thereafter, in a second region 12, the voltage of the high-pressure gas discharge lamp increases again with increasing current.
- the resistance gradients are again positive.
- this second area 12 i. in the ascending branch, is the normal operating point Nl of the high pressure gas discharge lamp EL to ensure stable lamp operation.
- the slope of the voltage / current characteristic of the high-pressure gas discharge lamp is therefore positive. If the lamp current is initially reduced, the lamp voltage is reduced. This behavior persists until the reverse minimum point 13.
- this 150 watt lamp is operated with the abovementioned 70 watt lamp power of 70 watts, the operating point N2 results for the circuit arrangement. Due to the overall shifted characteristic K2, however, this new operating point N2 has a negative resistance gradient.
- the invention now makes use of the fact that the normal operating point of a high-pressure gas discharge lamp in the ascending branch 12 of the U / I characteristic curve is selected. From the sign and / or the amount of the gradient of the U / I characteristic at the operating point Nl, N2 can be closed according to the invention, whether the high-pressure gas discharge lamp EL used is operated with a suitable power.
- the invention thus proposes a differential measurement of the U / I characteristic. This can be used to detect the sign and / or the magnitude of the gradient of the U / I characteristic at an operating point, in turn depending on this (for example, by a table adjustment) set operating parameters for the operation of the lamp.
- a multi-lamp ballast that can operate different types of lamps, according to the invention can detect the connected high-pressure gas discharge lamp by the gradient of the U / I characteristic is determined directly or indirectly at the operating point and its sign is checked.
- the absolute value of the gradient is preferably not relevant, as long as conclusions about the sign of the gradient can only be made on the basis of the direct or indirect U / I measurement.
- this determined gradient is negative, then the operating point of the lamp is in a region 11, where the voltage decreases with increasing current. It can be concluded that the lamp EL is operated at too low a power. On the other hand, if this determined gradient is positive, the operating point of the lamp is in a region 12 with a simultaneous increase in the lamp current and the lamp voltage, indicating a suitable power supply.
- FIG. 4 shows how a multi-lamp ballast can detect the connected high-pressure gas discharge lamp or its wattage.
- the multi-lamp ballast lamps with a first power Pmin of e.g. 70 watts or with a larger second power Pmax of e.g. Can operate 150 watts.
- a first method step S1 after ignition the connected high-pressure gas discharge lamp EL is supplied with the lower power Pmin by appropriate control of the switches S1-S4.
- the operating point Nl of the lamp is then determined S2, i. the lamp current and the lamp voltage are detected. This detection of the lamp parameters takes place, for example, via the measuring connections M1, M2 of the control circuit 1 described above.
- the value of the lamp current and lamp voltage which is measured directly or indirectly and results from the supply of the first power Pmin, is stored in a next step S3 in a memory unit 5 of the control circuit 1 in order to be able to access it later.
- both lamp current and lamp voltage S5 are again measured and stored in the memory unit 5 S6.
- the amount of the gradient can also be evaluated.
- Control circuit 1 are taken from S9 'that the connected lamp has the rated power Pmax and is to operate with this power Pmax.
- This method can also be used with a ballast that can provide more than two output powers.
- a multi-lamp ballast can be provided, for example, for operating lamps with 3 different nominal powers Pl, P2 and P3, where PKP2 ⁇ P3.
- the ballast can recognize the wattage of the connected lamp itself, in which the method described with reference to FIG. 4 is performed recursively. For this purpose, first the detection method of FIG. 4 is performed in such a way that the gas discharge lamp is operated with the smallest power P1, see step S11 in FIG. 5.
- Detection method means that the lamp is now connected to the
- Power P2 is operated S13 'and that it is checked whether the resistance gradient is now positive or not S14, which should suggest a nominal power P2 or P3 S15, S15'.
- the operating device can store in a memory related information from a once performed lamp detection.
- the memory may be integrated in the control circuit 1 or else be external (inside the operating device or at least within the lighting system), the control circuit 1 being able to access it.
- the control circuit 1 After a successful detection of the lamp, the control circuit 1 store in the memory information about the detected lamp type or according to the detection to be selected operating parameters for the lamp. This information can be retrieved from the memory during a restart.
- This storage of the information about the recognized lamp type offers the advantage that recognition does not have to be performed every time the lamp is started. For example, detection of the lamp can only be carried out when the operating device is first put into operation.
- the detection of the lamp type can be initiated by signaling or detection of a lamp replacement. This can be done for example by removing the lamp during operation or by external signaling. This signaling from the outside can be done, for example, by a repeated switching on and off of the network or by an external control command, which is sent via an existing interface.
- the memory is advantageously a non-volatile memory, which is still available even after switching off the operating device. As a memory, a fuse can be used, which can be blown to signal a specific type of lamp.
- Another advantage of this invention is due to the fact that a high independence of temperature influences or aging phenomena of the lamp can be achieved by this method. Since it is not necessary to compare absolute values with a defined value table for given lamp types for the detection of the lamp, but only the gradient of the current / voltage characteristic at a given operating point is evaluated, it is irrelevant whether the current / voltage characteristic of the lamp due to a Temperature variation or aging of the lamp has moved. The gradient of the current / voltage characteristic of the lamp changes in such a temperature fluctuation or aging of the lamp, however, only in a negligible amount.
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810016753 DE102008016753A1 (de) | 2008-03-31 | 2008-03-31 | Erkennung des Typs einer Hochdruck (HID)-Entladungslampe |
| PCT/EP2009/002045 WO2009121493A1 (de) | 2008-03-31 | 2009-03-19 | Erkennung des typs einer hid-lampe durch ein multilampen-betriebsgerät und beleuchtungssystem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2258149A1 true EP2258149A1 (de) | 2010-12-08 |
| EP2258149B1 EP2258149B1 (de) | 2012-05-23 |
Family
ID=40872778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09727532A Not-in-force EP2258149B1 (de) | 2008-03-31 | 2009-03-19 | Erkennung des typs einer hid-lampe durch ein multilampen-betriebsgerät und beleuchtungssystem |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2258149B1 (de) |
| CN (1) | CN101982021A (de) |
| DE (1) | DE102008016753A1 (de) |
| WO (1) | WO2009121493A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010040929A1 (de) | 2010-09-16 | 2012-03-22 | Bag Engineering Gmbh | Verfahren und Vorrichtung zum Differenzieren von Hochdruck (HID)-Entladungslampen sowie Betriebsgerät zum Differenzieren und Betreiben von Hochdruck (HID)-Entladungslampen |
| DE102010042887A1 (de) | 2010-10-25 | 2012-04-26 | Bag Engineering Gmbh | Verfahren und Vorrichtung zum Festlegen von zumindest einem Dimmparameter für eine, an einem Multilampen-Betriebsgerät angeschlossene Hochdruck (HID)-Entladungslampe mit vorgegebener Nennleistung |
| CN102242914B (zh) * | 2011-06-28 | 2013-11-20 | 鸿富锦精密工业(深圳)有限公司 | 灯管切换电路 |
| CN102353024B (zh) * | 2011-06-28 | 2013-08-28 | 鸿富锦精密工业(深圳)有限公司 | 灯管切换电路及其切换方法 |
| CN103517534B (zh) * | 2013-10-10 | 2015-12-02 | 深圳市朗科智能电气股份有限公司 | 一种高压钠灯功率规格的识别方法及装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4300660A (en) | 1979-12-27 | 1981-11-17 | Otis Elevator Company | Elevator door motion reversal |
| US5600211A (en) * | 1994-09-16 | 1997-02-04 | Tridonic Bauelemente Gmbh | Electronic ballast for gas discharge lamps |
| DE19530485A1 (de) * | 1995-08-18 | 1997-02-20 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Verfahren und Schaltungsanordnung zum Betreiben einer elektrischen Lampe |
| US6160361A (en) * | 1998-07-29 | 2000-12-12 | Philips Electronics North America Corporation | For improvements in a lamp type recognition scheme |
| DE19850441A1 (de) * | 1998-10-27 | 2000-05-11 | Trilux Lenze Gmbh & Co Kg | Verfahren und Vorschaltgerät zum Betrieb einer mit einer Leuchtstofflampe versehenen Leuchte |
| DE10139402B4 (de) * | 2001-08-10 | 2006-05-18 | B&S Elektronische Geräte GmbH | Verfahren zur Herstellung einer passenden Verbindung zwischen einer Leuchte und einem elektronischen Vorschaltgerät, elektronisches Vorschaltgerät und Leuchte zur Durchführung des Verfahrens |
| AU2002349518A1 (en) | 2001-11-27 | 2003-06-10 | Matsushita Electric Works, Ltd. | Electronic ballast for high-pressure discharge lamp |
| JP2003249392A (ja) * | 2002-02-22 | 2003-09-05 | Mitsubishi Electric Corp | 放電灯点灯装置 |
| EP2036408B1 (de) | 2006-06-26 | 2010-03-10 | Koninklijke Philips Electronics N.V. | Verfahren und system zum betreiben einer entladungslampe und zur erkennung von fehlfunktionen der lampe |
| DE102007008148A1 (de) * | 2007-02-19 | 2008-08-21 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Universal-EVG zum Betrieb Hg-freier und Hg-haltiger D-Lampen |
-
2008
- 2008-03-31 DE DE200810016753 patent/DE102008016753A1/de not_active Withdrawn
-
2009
- 2009-03-19 WO PCT/EP2009/002045 patent/WO2009121493A1/de not_active Ceased
- 2009-03-19 EP EP09727532A patent/EP2258149B1/de not_active Not-in-force
- 2009-03-19 CN CN2009801117912A patent/CN101982021A/zh active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009121493A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101982021A (zh) | 2011-02-23 |
| DE102008016753A1 (de) | 2009-10-01 |
| EP2258149B1 (de) | 2012-05-23 |
| WO2009121493A1 (de) | 2009-10-08 |
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