WO2012031926A1 - Led-lampe und betriebsverfahren für eine led-lampe - Google Patents
Led-lampe und betriebsverfahren für eine led-lampe Download PDFInfo
- Publication number
- WO2012031926A1 WO2012031926A1 PCT/EP2011/064802 EP2011064802W WO2012031926A1 WO 2012031926 A1 WO2012031926 A1 WO 2012031926A1 EP 2011064802 W EP2011064802 W EP 2011064802W WO 2012031926 A1 WO2012031926 A1 WO 2012031926A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- led lamp
- operating mode
- led
- mode
- event
- 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
- 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
-
- 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]
- H05B45/10—Controlling the intensity of the light
-
- 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
- H05B47/105—Controlling the light source in response to determined parameters
-
- 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
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Definitions
- the invention is in the field of LED lamps, in particular in the field of retrofit LED lamps.
- LED lamps are increasingly being used as a replacement for conventional incandescent lamps, with additional requirements placed on the LED lamps.
- the LED lamps replace incandescent low wattage ( "wattage” '), which are, for example basket lamps.
- basket lamps are widely used, and usually, for example, in cellars, storage rooms, storerooms, warehouses or in attics attached.
- Incandescent lamps with low wattage They are preferably used where only a relatively small amount of heat is to be released into the environment during long-term operation of the lamp, for example by reducing the risk of fire during prolonged operation of the incandescent lamp, for example if the user forgets to switch off the incandescent lamp
- the use of low wattage incandescent lamps means that the brightness is low, and so multiple or additional light sources must be used to produce a desired brightness
- the LED lamps are due to the requirements of touchability and the low Heat release so in her L limited capacity.
- a high brightness of the LED lamp is desired by the user.
- the invention therefore has for its object to provide an LED lamp and a method for their operation, which meets all the above requirements.
- the invention provides an LED lamp comprising a control unit adapted to selectively switch on, after a switch-on operation of the LED lamp, for a defined limited time period or until the occurrence of a defined event which the control unit detects.
- the event can be a reaching of a temperature value.
- the first mode of operation may be selected by a user through a switch manipulation.
- the temperature value can be determined by the LED lamp.
- the control unit can determine a usage behavior of the LED lamp and select the first according to the determined usage behavior. As a user behavior, an average period of use of the LED lamp can be determined.
- the first mode of operation may be via an interface, e.g. a bus and / or switch to be activated.
- the activation can be done in the second operating mode.
- the duration of the operation in the first operating mode can be selected by a user and / or adaptively depending on the usage behavior.
- the LED lamp can be a retrofit LED lamp.
- Under retrofit LED lamp is an LED lamp for use in a conventional lamp base such as E27, E14, GU5.3 or GÜ10 or the like to understand, ie a LED Lamp equipped with compatible mechanical and electrical connections.
- an excess brightness can be generated on the LED lamp.
- a degree of over-brightness may be set in the first mode of operation depending on a duration for which the LED lamp is to be operated in the first mode of operation.
- the invention provides a method of operating an LED lamp, comprising the steps of: operating LED lamps of an LED lamp selectively after a turn-on operation of the LED lamp for a defined limited period or until the occurrence of a defined event in a first mode of operation with a DC current whose amplitude is greater than that of a defined nominal current for the stationary operation of the LED lamps of the LED lamp, then operating the LED lamps in a second mode of operation with the defined nominal current for the LED stationary operation, wherein the LED lamp has a control unit that detects the event.
- the operation of the LED lamp in the operating mode with the Studentshellmaschine and the second operating mode with the defined nominal current preferably takes place without interruption, ie there are no breaks without a lighting period (at least not in the low-frequency range) to provide the most pleasant lighting for the Reach users. Lightning or flickering should be avoided.
- FIG. 1 shows an example of a change
- Fig. 2 shows an example of a change
- the invention therefore provides for operating an LED lamp in a first operating mode over a short period of time, for example in the range of seconds to a few minutes, with a high brightness, an excess brightness.
- the short duration of over-brightness operation may be in the range of 20 or 30 seconds to 90 or 120 seconds.
- the LED lamp is then operated with a reduced or its intended brightness in a second operating mode.
- the change either after a predetermined time (, open-loo x ⁇ or depending on an event, such as a temperature feedback signal (, closed 1 ⁇ ⁇ ), take place.
- low wattage incandescent bulbs for example, 40 watts
- incandescent bulbs for example, 40 watts
- the use of a 100 watt incandescent lamp can increase the risk of fire exist, especially if the light bulb is operated over a long period of time.
- the LED lamp can therefore be used in the time it is operated in the first mode of operation and in which a lot of light is emitted, for example as a replacement for a high wattage bulb, e.g. 100 watts, serve.
- the LED lamp changes to the second mode of operation in which less light is emitted, e.g. at the level of a 40 watt incandescent lamp.
- the LED lamp can also be used, for example, for equipping outdoor lighting (eg house entrance) with eg a motion detector and / or twilight sensor.
- the lighting time in the first mode of operation can of course be extended because the lamp is originally designed for a high wattage, eg 100 watts , in the LED lamp but only a smaller wattage, eg 20W, are necessary to change the size of the lamp is generally rather large (eg larger than basket lamps).
- the ambient temperature at the time of switch-on usually low (eg when it is dark or in winter), which means that the temperature in the luminaire does not increase so quickly and operation with higher power is longer possible. This is also the case in other areas of application, such as cold stores.
- the short-term “driving over" the LED with a higher current cheaper LED modules can be used than those that can be operated with this initially higher current in the long term as the rated current.
- the transfer of the LED lamp from the first operating mode to the second operating mode can take place, for example, time-controlled, for example at the time t BM1 (see FIG. 1). However, it can also be provided to transfer the operating medium after reaching a predetermined temperature value from the first operating mode to the second operating mode, eg when a temperature Temp BM i (see FIG. 2) is reached. It can also be provided to change from the first to the second operating mode upon the occurrence of another event, eg depending on an ambient brightness value.
- the determination of the temperature value can be carried out directly (temperature sensor) and / or indirectly (in evaluation of temperature-dependent electrical or optical parameters), a temperature value can be determined for example on the LED lamp, on the control unit or a housing of the LED lamp.
- the changeover from the first operating mode to the second operating mode also has the advantage that the service life of the LED lamp is not significantly shortened, since operation in the case of excess brightness takes place only for a short time.
- the LED lamp immediately after switching to the first mode of operation offset To achieve higher light output in the operating mode, the LED lamp may be operated for a period of time at an increased current above the current allowed for steady state operation of the LED lamp. As a result, the desired excess brightness can be generated at the light sources of the LED lamp.
- the LED lamps of the LED lamp are operated in the first operating mode with a DC current whose amplitude is greater than that of the defined nominal current for steady-state operation.
- DC current means the average current through the LED
- the LED can also be supplied with a high-frequency pulsed current whose mean value over time (for example within one second) is greater than the value of the defined nominal current for the stationary one Business.
- the LED lamps of the LED lamp are then operated, for example, with the defined rated current for the stationary or with a current which is below the increased current.
- the LED lamp may operate for longer periods of over-brightness, while shortening the time for over-brightness operation at higher ambient temperatures.
- over-brightness operation only takes place when a specific temperature at the LED lamp is undershot.
- it may also be provided to allow operation with excess brightness only when the temperature at the LED lamp, for example by a predetermined amount, has dropped since the last operation with excess brightness.
- the temperature can be measured at any location, for example, where an elevated temperature increases the risk of fire, or on the LED lamp or the LED lamp housing.
- a user of the LED lamp can be converted from the second operating mode into the first operating mode, for example by a switch manipulation.
- a switch manipulation for example, when using the LED lamp in buildings, for example in stairwells or corridors, it is possible to enable illumination at lower brightness in the second operating mode and, if necessary, to activate the first operating mode and thus to increase the brightness for a short time.
- the activation of the first operating mode can take place via a bus.
- it can also be provided for example on the housing of the LED lamp for switching on and / or off the over-light operating mode, a switch or button.
- an adaptive control of the LED lamp in which, for example, the user can set the brightness with which the LED lamp is to be operated in the first operating mode. This can be done for example by a switching manipulation. For example, the LED lamp on a switching manipulation and dimming down and set the user by a further switching manipulation towards the brightness value. This dimming up and down can also be cyclic. Alternatively, discrete brightness values, eg brightness values above the brightness during normal operation, may be available for selection. Depending on this setting, the time for which the LED lamp is operated in the first operating mode can then be shortened or extended.
- the LED lamp has a control unit which determines a user behavior and / or a history of switch-on operations and / or Operating times in different modes can log to control the LED lamp accordingly.
- the control unit also determines the event, on the basis of which the LED lamp is transferred from the first to the second operating mode, or parameters that are characteristic of the event.
- the control unit can then influence, for example, the duration for which the LED lamp is operated in the first operating mode and / or for the brightness.
- the operation may be based on over-brightness based on a history for the operation of the LED lamp.
- the control unit determines how often the LED lamp was operated, for example, in a period of time with over-brightness.
- the control unit determines the length of time for which the operating device can be operated in the first operating mode in the future.
- the change from the first to the second operating mode can also take place by means of a predetermined transition, such as a ramp, or through a plurality of intermediate steps in order to improve the perception of the changeover between the operating modes.
- the duration of the transition and whether a transition should be made can be specified by the control unit. For example, this can also be influenced by an evaluation of the user behavior and / or the history of the switch-on processes and / or operating times or by a specification from the outside.
- control unit of the LED lamp may directly or indirectly monitor the time interval between the last switch-off and the switching on of the LED lamp and to select the duration of the first operating mode depending on the duration of this switch-off phase.
- the duration of the switch-off phase can be detected, for example via a time measurement by the control unit.
- the control unit can be designed so that it continues to operate for a certain period of time after elimination of the supply voltage (ie turning off the LED lamp), at least in a dormant operation in which still remain parts of the control unit active, for example, certain measurements and operations while power consuming parts are switched off. If within a certain time the LED lamp does not turn on again, the control unit can also switch off completely.
- the duration of the switch-off phase can also be detected indirectly.
- a storage element in the LED lamp can be monitored and its charge state can be evaluated in order to conclude the duration of the switch-off phase.
- the voltage of a capacitor which is arranged within the LED lamp and is charged during operation of the LED lamp (for example, a smoothing capacitor) can be evaluated. If the voltage of the capacitor is still at a certain potential when the LED lamp is switched on, it can be concluded that there is only a short switch-off phase. In such a case, as already explained, the time duration of the first operating mode can be shortened or even skipped, since it is not certain whether the LED lamp was able to cool sufficiently in this switch-off phase.
- the control unit can be designed so that it after the elimination of the supply voltage (ie turning off the LED lamp) is still operating for a certain period of time, at least in a sleep mode in which still remain parts of the control unit active, such as certain measurements and operations, while parts with relatively high energy consumption such as driver circuits are turned off. If within a certain time the LED lamp does not turn on again, the control unit can also switch off completely.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112011102969T DE112011102969A5 (de) | 2010-09-07 | 2011-08-29 | LED-Lampe und Betriebsverfahren für eine LED-Lampe |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010040319.9 | 2010-09-07 | ||
DE102010040319A DE102010040319A1 (de) | 2010-09-07 | 2010-09-07 | LED-Lampe und Betriebsverfahren für eine LED-Lampe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012031926A1 true WO2012031926A1 (de) | 2012-03-15 |
Family
ID=44741272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/064802 WO2012031926A1 (de) | 2010-09-07 | 2011-08-29 | Led-lampe und betriebsverfahren für eine led-lampe |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102010040319A1 (de) |
WO (1) | WO2012031926A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015208006A1 (de) * | 2015-04-30 | 2016-11-03 | Zumtobel Lighting Gmbh | Leuchte und Verfahren zum Betreiben der Leuchte |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1508130A (en) | 1975-07-22 | 1978-04-19 | Thorn Electrical Ind Ltd | Emergency lighting systems |
US20070195532A1 (en) * | 2006-02-21 | 2007-08-23 | Cml Innovative Technologies, Inc. | LED lamp module |
US20080290738A1 (en) * | 2007-05-23 | 2008-11-27 | Greene Charles E | Smart receiver and method |
-
2010
- 2010-09-07 DE DE102010040319A patent/DE102010040319A1/de not_active Withdrawn
-
2011
- 2011-08-29 DE DE112011102969T patent/DE112011102969A5/de not_active Withdrawn
- 2011-08-29 WO PCT/EP2011/064802 patent/WO2012031926A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1508130A (en) | 1975-07-22 | 1978-04-19 | Thorn Electrical Ind Ltd | Emergency lighting systems |
US20070195532A1 (en) * | 2006-02-21 | 2007-08-23 | Cml Innovative Technologies, Inc. | LED lamp module |
US20080290738A1 (en) * | 2007-05-23 | 2008-11-27 | Greene Charles E | Smart receiver and method |
Also Published As
Publication number | Publication date |
---|---|
DE112011102969A5 (de) | 2013-08-14 |
DE102010040319A1 (de) | 2012-03-08 |
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