WO2012045555A1 - Operating device with an adjustable critical temperature - Google Patents
Operating device with an adjustable critical temperature Download PDFInfo
- Publication number
- WO2012045555A1 WO2012045555A1 PCT/EP2011/065907 EP2011065907W WO2012045555A1 WO 2012045555 A1 WO2012045555 A1 WO 2012045555A1 EP 2011065907 W EP2011065907 W EP 2011065907W WO 2012045555 A1 WO2012045555 A1 WO 2012045555A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- operating device
- temperature
- critical temperature
- control circuit
- control unit
- Prior art date
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
- H05B41/282—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
- H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
- H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
- H05B41/2856—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against internal abnormal circuit conditions
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
Definitions
- the invention relates to a device for operating light sources, such as fluorescent lamps, gas discharge lamps, light-emitting diodes (LEDs), organic light-emitting diodes (OLEDs), halogen lamps, etc.
- the present invention relates to an operating device, which adjusts at least one parameter influencing the temperature development in the operating device or regulates, and which changes this parameter to control the temperature development.
- the invention now has the task to give the user of a control gear the opportunity to influence the life of the device, this action, for example, can be used to increase this life.
- the object is to provide a way to change and adapt the life of a control gear, in particular for lighting.
- an operating device for at least one lighting device comprising a control circuit which adjusts or regulates at least one parameter influencing the temperature development in the operating device and which detects a temperature in or in the operating device, and one with the control circuit connected or in this integrated memory in which at least one critical temperature can be stored, wherein the control circuit changes the parameter for reducing the temperature development when the critical temperature is exceeded, wherein the value of the critical temperature is adjustable by a manual or data interface to the operating device.
- the manual interface for setting the value for the critical temperature may be configured in the form of at least one user-adjustable control element. Advantage of this embodiment is that a user can make the setting of the critical temperature directly on the operating device. He can thus adjust the life without much effort.
- a potentiometer in particular a rotary or sliding potentiometer may be provided. It is advantageous in this embodiment that a potentiometer is a cost-effective option for setting a critical temperature. This allows the user to also select a value from a plurality of individual values. It can also set a specific value from a whole continuous range of temperature values.
- the data interface of the operating device may be such a communication interface that signals for setting a critical temperature can be transmitted via this interface of the control unit.
- Communication interface of the operating device centrally set the critical temperature.
- the operating device may include a temperature sensor for detecting the temperature in the operating device or in its environment.
- the device itself can detect an internal temperature or a temperature corresponding to the internal temperature.
- the operating device can alternatively or additionally have an input for receiving data of an external temperature sensor, wherein this external temperature sensor is designed for detecting the temperature in the operating device or in its surroundings.
- this can reduce the complexity or the size of the operating device.
- an external temperature sensor is used by several neighboring operating devices.
- the internal temperature sensor of an operating device can be used as an external temperature sensor of another operating device, which reduces the overall cost.
- the control unit can enter a protection mode for reducing the temperature of the operating device.
- the control unit can be designed to set or regulate a parameter influencing the temperature development in the operating device, for example to reduce the power / current supplied to the illuminant or the voltage provided to the illuminant or to switch off the illuminant.
- the parameter influencing the temperature development in the operating device can be, for example, the switch-on duration or the switching frequency of the converter for the operation of a lighting device.
- the duty cycle can be reduced or the switching frequency of the converter can be increased.
- This process can be carried out on the basis of a temperature measurement, without external measures such as active cooling must be taken. It is advantageous that the light source is not completely turned off, but only dimmed. Thus, for example, a possible flickering of the light source is possible by quickly switching off and on again.
- control unit can report this event.
- An advantage of this embodiment is that the user is notified of this event and may take appropriate action. Accordingly, he can then decide whether, for example, because of too high a temperature, no other operating device would be better suited for a particular lamp.
- the control unit can reach or exceed the set critical temperature via an optical Display or an audible indication to the user. It is advantageous that the user in the vicinity of the lamp recognize this and possibly take a suitable measure.
- the reaching or exceeding of the set critical temperature can be stored in the memory unit or reported via the communication interface.
- the advantage of a storage is that every exceeding of the critical temperature can be documented. Thus, the life cycle and possibly the theoretical remaining service life of the operating device can be determined. In addition, the period of time during which the critical temperature has been exceeded can also be stored.
- Advantage of a message via the communication interface it is for example that in a lighting system, the exceeding of the critical temperature can be monitored centrally. In this case, possibly also the messages sent via the communication interface can be stored centrally.
- the setting or selection of a value of the critical temperature can be documented or reported by means of the manual or data-technical interface. This can be done by storing in the memory unit or by reporting via the communication interface.
- An advantage of this embodiment is that it can be understood whether the life of the operating device has now been increased or decreased.
- an operating device for at least one lighting device, comprising a memory unit for storing at least two different values for a critical temperature of the operating device, means for selecting a value for the critical temperature, and a control unit for controlling the electrical energy transmitted to the illuminant, which is adapted to monitor the temperature of the operating device and at the selected critical temperature to compare.
- an electronic ballast comprising an operating device described above is provided.
- a luminaire having an operating device as described above and connected lighting means.
- Fig. 1 shows a schematic view of a
- Fig. 2 shows a schematic representation of a
- the invention relates to an operating device 1 in the form of, for example, an electronic ballast.
- the operating device 1 can be equipped with a microcontroller as a control circuit 5.
- the operating device 1 is usually operated via mains voltage lines 2 with mains voltage V ac .
- mains voltage lines 2 with mains voltage V ac .
- the operation can be provided with a DC voltage, for example, is provided by a battery.
- this voltage is usually rectified by an input block 16 and optionally filtered.
- This rectified by the input block 16 mains voltage V A c is provided to a converter 4 or voltage converter available, which in turn translates the mains voltage V AC in a suitable for the operation of a light source 6 output voltage v.
- a control circuit 5 serves to control the converter 4 to output a desired output voltage v.
- the control circuit 5 is preferably also supplied by the mains voltage V AC .
- the controlled by the control unit 5 converter 4 is used to supply the light source 6 with preferably variable electrical energy.
- the converter 4 comprises at least two controllable by the control circuit 5 switch 15 or circuit breaker.
- the control circuit 5 switch 15 By appropriate and well-known control of the switch 15, inter alia, the frequency of the output voltage v is varied.
- the switching frequency of the switch 15 is particularly variable for controlling the brightness of the lamp 6. Depending on the switching frequency of the switch 15, the electrical energy transmitted to the lamp 6 and thus the brightness generated by the lamp and the temperature in the operating device 1 or in its surroundings are lowered or increased.
- One or more light sources 6 can be controlled by the operating device 1.
- the illuminants that can be used in the circuit arrangement shown can be, for example, fluorescent lamps, gas discharge lamps, light-emitting diodes (LEDs), organic light-emitting diodes (OLEDs), or halogen lamps. If several lamps 6 are driven by the operating device 1, they can be connected in series and / or in parallel.
- the operating device comprises an internal temperature sensor 12 and / or an input 14 for connecting an external temperature sensor 13. Die mit dem
- Temperature sensor 12 and connected to the input 14 control circuit 5 can thus directly measure the temperature in the operating device 1 or in its environment.
- the control circuit 5 can indirectly determine the temperature by internal measurements of electrical parameters, such as voltages, currents, resistances, etc. This type of temperature determination is known per se.
- the control circuit 5 can receive, for example, the lamp voltage of the luminous means as a feedback signal via a corresponding measuring point.
- the control circuit 5 can measure the lamp current of the luminous means 6 via a corresponding low-resistance electrical measuring resistor ⁇ "shunt").
- Ambient temperature of the lamp and thus the ambient temperature of the operating device 1 can determine.
- the temperature measurement can be determined by the latter, for example, when the operating device is designed with a microcontroller.
- the critical for the operation of the operating device 1 temperature Tc by a user from the outside for example via a bus signal or manually adjustable.
- Critical temperature is that temperature of the operating device 1 to understand, above which the operating device 1 takes one or more protective measures. These protective measures set or regulate a parameter influencing the temperature development in the operating device 1. As already explained, a temperature T is recorded in the operating device 1 or in its surroundings. These protective measures may be, for example: switching off the light source 6, reducing the power transmitted to the light source 6, optical 10 or acoustic display 11, outputting the storage of a message in the memory 7, automatic feedback via a communication channel 3.
- the optical 10 or the acoustic Indicator may be, for example, in the case of exceeding the critical temperature Tc a red LED to turn on or to generate an acoustic signal via a loudspeaker.
- the reduction of the power supplied to the light source 6 p or current i or the voltage provided v, or even the optical display 10 or acoustic display 11 can be achieved by changing the duty cycle or the switching frequency of the converter 4.
- a data interface or communication interface 9 is provided on the operating device 1, which is connected to the control circuit 5, and to which the communication channel 3 can be connected.
- the communication interface 9 may preferably be designed as a digital interface, in particular according to the DALI ⁇ Digital Addressable Lighting Interface) standard.
- the operating device 1 can report the achievement or exceeding of the set critical temperature Tc, for example, a connected to the communication channel 3 central control unit 17 via this communication interface.
- the critical temperature Tc is preferably stored in the memory 7, wherein the memory may alternatively be arranged outside of the operating device 1.
- This critical temperature Tc can be manually set or changed by a user according to the embodiment of FIG.
- an operating element 8 is provided in the operating device 1.
- the operating element 8 can also be arranged outside the operating device 1.
- a control element may be meant a potentiometer, or even more complex controls such as a keyboard.
- Control unit 17 can be set or changed. According to a further embodiment not only a variable critical temperature Tc is stored in the memory 7, but rather a lifespan table.
- a life time table according to the invention is shown in FIG. 2 and defines a life expectancy for the operating device 1 as a function of the critical temperature Tc. In the example of FIG. 2, three different critical temperature values are indicated as well as the corresponding service life, which may be expected if the respective critical temperature is not exceeded. The user is thus handed over by the manufacturer of the operating device 1, this life table, in which the expected average lifetimes are stored for the temperatures within the allowable range for the critical temperature. With the aid of the operating element 8, the user can then select a value defined in the life-time table for the critical temperature Tc.
- This selection can also be made via a command sent via the communication channel 3.
- a plurality of temperature stages may be provided, which are adjustable with each other or also different, with the protective measures being the sharper the higher the reached level of the critical temperature. For example, in the case of a first critical temperature level, a pure documentation of the overshoot can take place, with another one
- an adaptive critical temperature can also be provided, ie the history of temperature excesses and the extent of the overshoot can be adaptively converted into a modified determination of the critical temperature Tc.
- the release of a higher critical temperature can be controlled by the manufacturer that the manufacturer either codes that over the
- Communication interface can be transmitted, or hardware provides by means of which the higher critical temperature can be selected.
- a user of an operating device 1 can set his own critical temperature and, in combination with the stored life-time table, select or determine the desired service life himself. The lifetime can be increased by lowering the critical temperature.
- the reaction of the device when the critical temperature is exceeded can be different.
- the control circuit may down-regulate the output power p or the output current i or also the supplied voltage v of the operating device (ie with feedback signal) or -êtn. Alternatively or additionally, this may produce a visual or acoustic signaling at excess temperature, so that a countermeasure should be taken by the user himself. Furthermore, the excess can be logged so that, for example, stored in the memory 7, how often or how high the set critical temperature has been exceeded.
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11763885.8A EP2625930B1 (en) | 2010-10-05 | 2011-09-14 | Operating device with an adjustable critical temperature |
DE112011103353T DE112011103353A5 (en) | 2010-10-05 | 2011-09-14 | Operating device with adjustable critical temperature |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041987.7 | 2010-10-05 | ||
DE102010041987A DE102010041987A1 (en) | 2010-10-05 | 2010-10-05 | Operating device with adjustable critical temperature |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012045555A1 true WO2012045555A1 (en) | 2012-04-12 |
Family
ID=44720864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/065907 WO2012045555A1 (en) | 2010-10-05 | 2011-09-14 | Operating device with an adjustable critical temperature |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2625930B1 (en) |
DE (2) | DE102010041987A1 (en) |
WO (1) | WO2012045555A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT14947U1 (en) * | 2013-10-23 | 2016-09-15 | Tridonic Gmbh & Co Kg | Operating device and method for operating at least one light-emitting diode |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011053190B4 (en) * | 2011-09-01 | 2017-11-23 | Hella Kgaa Hueck & Co. | Control unit for lights, for example motor vehicle lights, in particular LED lights |
DE102019132461A1 (en) * | 2019-11-29 | 2021-06-02 | Tridonic Gmbh & Co Kg | Increasing the service life of control gear |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH654427A5 (en) * | 1980-06-04 | 1986-02-14 | Int Standard Electric Corp | Method for protecting the light source of opto-transmitters |
US20050179404A1 (en) * | 2004-02-13 | 2005-08-18 | Dragan Veskovic | Multiple-input electronic ballast with processor |
EP1683398A1 (en) | 2003-11-12 | 2006-07-26 | Lutron Electronics Co., Inc. | Thermal protection for lamp ballasts |
WO2008116496A1 (en) * | 2007-03-27 | 2008-10-02 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Operating device and lighting system for low-pressure discharge lamps having temperature-dependant power return control |
US20100231136A1 (en) * | 2009-03-13 | 2010-09-16 | Led Specialists Inc. | Line voltage dimmable constant current led driver |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE144355T1 (en) * | 1989-11-27 | 1996-11-15 | Tekneon Corp | PROTECTIVE CIRCUIT FOR LIGHT TUBES |
US5019769A (en) * | 1990-09-14 | 1991-05-28 | Finisar Corporation | Semiconductor laser diode controller and laser diode biasing control method |
DE10134246A1 (en) * | 2001-07-18 | 2003-02-06 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Control gear for LEDs with temperature-dependent current control |
WO2006042050A2 (en) * | 2004-10-08 | 2006-04-20 | B/E Aerospace, Inc. | Dimmable reading light with emergency lighting capability |
KR20070079455A (en) * | 2006-02-02 | 2007-08-07 | 삼성전자주식회사 | Back-light unit having a plurality of luminous element and control method thereof |
US20090236910A1 (en) * | 2008-03-24 | 2009-09-24 | Jose Luiz Yamada | Point of use and network control of electrical appliances and method |
DE202008005812U1 (en) * | 2008-04-30 | 2008-09-11 | Automotive Lighting Reutlingen Gmbh | Motor vehicle control unit for controlling and / or regulating a lighting device |
DE102008058524B4 (en) * | 2008-11-21 | 2010-11-18 | Herbert Waldmann Gmbh & Co. Kg | Circuit arrangement for a light with LEDs |
-
2010
- 2010-10-05 DE DE102010041987A patent/DE102010041987A1/en not_active Withdrawn
-
2011
- 2011-09-14 WO PCT/EP2011/065907 patent/WO2012045555A1/en active Application Filing
- 2011-09-14 EP EP11763885.8A patent/EP2625930B1/en active Active
- 2011-09-14 DE DE112011103353T patent/DE112011103353A5/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH654427A5 (en) * | 1980-06-04 | 1986-02-14 | Int Standard Electric Corp | Method for protecting the light source of opto-transmitters |
EP1683398A1 (en) | 2003-11-12 | 2006-07-26 | Lutron Electronics Co., Inc. | Thermal protection for lamp ballasts |
US20050179404A1 (en) * | 2004-02-13 | 2005-08-18 | Dragan Veskovic | Multiple-input electronic ballast with processor |
WO2008116496A1 (en) * | 2007-03-27 | 2008-10-02 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Operating device and lighting system for low-pressure discharge lamps having temperature-dependant power return control |
US20100231136A1 (en) * | 2009-03-13 | 2010-09-16 | Led Specialists Inc. | Line voltage dimmable constant current led driver |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT14947U1 (en) * | 2013-10-23 | 2016-09-15 | Tridonic Gmbh & Co Kg | Operating device and method for operating at least one light-emitting diode |
Also Published As
Publication number | Publication date |
---|---|
EP2625930B1 (en) | 2020-01-01 |
EP2625930A1 (en) | 2013-08-14 |
DE112011103353A5 (en) | 2013-07-25 |
DE102010041987A1 (en) | 2012-04-05 |
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