WO2012137130A3 - Method for driving leds - Google Patents
Method for driving leds Download PDFInfo
- Publication number
- WO2012137130A3 WO2012137130A3 PCT/IB2012/051623 IB2012051623W WO2012137130A3 WO 2012137130 A3 WO2012137130 A3 WO 2012137130A3 IB 2012051623 W IB2012051623 W IB 2012051623W WO 2012137130 A3 WO2012137130 A3 WO 2012137130A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- led
- leds
- generating
- applications
- peak intensities
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- 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]
- H05B45/30—Driver circuits
- H05B45/32—Pulse-control circuits
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Led Devices (AREA)
Abstract
The present invention relates to a method for driving at least one LED which is performed in the following steps: by generating a pulsating current through the LED, controlling the voltage drop over at least the LED and generating pulses with at least one sloping flange. It is the object of the present invention to perform overdrive of LEDs for increasing high-peak intensities in pulsating light. The object can be achieved by generating the pulses with a sloping rising flange. Hereby it can be achieved that when LEDs are driven with sloped current increases very high-peak intensities can be achieved making a LED suitable for strobe and flash applications by which this driver technology opens a whole new world of applications where LEDs can be implemented. It is possible to increase the peak intensities in all applications where flashing can be accepted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12715729.5A EP2695486A2 (en) | 2011-04-04 | 2012-04-03 | Method for driving leds |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA201170158 | 2011-04-04 | ||
DKPA201170158 | 2011-04-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2012137130A2 WO2012137130A2 (en) | 2012-10-11 |
WO2012137130A3 true WO2012137130A3 (en) | 2013-01-24 |
Family
ID=45992572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2012/051623 WO2012137130A2 (en) | 2011-04-04 | 2012-04-03 | Method for driving leds |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2695486A2 (en) |
WO (1) | WO2012137130A2 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007144365A1 (en) * | 2006-06-15 | 2007-12-21 | Osram Gesellschaft mit beschränkter Haftung | Electrical power supply circuit device for at least one electrical and/or electronic component |
US20080224625A1 (en) * | 2006-12-15 | 2008-09-18 | Intersil Americas Inc. | Constant current light emitting diode (LED) driver circuit and method |
WO2008152565A2 (en) * | 2007-06-13 | 2008-12-18 | Philips Intellectual Property & Standards Gmbh | Supply circuit, in particular for leds |
DE102007031038A1 (en) * | 2007-07-04 | 2009-01-08 | Tridonicatco Schweiz Ag | Circuit for operating light-emitting diodes (LEDs) |
WO2010023280A1 (en) * | 2008-08-28 | 2010-03-04 | Lemnis Lighting Patent Holding B.V. | Method and circuit for controlling an led load |
US20100079124A1 (en) * | 2008-09-30 | 2010-04-01 | John Laurence Melanson | Adjustable Constant Current Source with Continuous Conduction Mode ("CCM") and Discontinuous Conduction Mode ("DCM") Operation |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2015611A1 (en) | 2007-07-12 | 2009-01-14 | Yu-Nung Shen | Method for driving a LED |
DE202008004910U1 (en) | 2008-04-09 | 2008-06-12 | Maiw, Fu-Hwa, Hsin-Tine City | A high performance power driver for the serial connection of LED light emitting diodes |
-
2012
- 2012-04-03 WO PCT/IB2012/051623 patent/WO2012137130A2/en active Application Filing
- 2012-04-03 EP EP12715729.5A patent/EP2695486A2/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007144365A1 (en) * | 2006-06-15 | 2007-12-21 | Osram Gesellschaft mit beschränkter Haftung | Electrical power supply circuit device for at least one electrical and/or electronic component |
US20080224625A1 (en) * | 2006-12-15 | 2008-09-18 | Intersil Americas Inc. | Constant current light emitting diode (LED) driver circuit and method |
WO2008152565A2 (en) * | 2007-06-13 | 2008-12-18 | Philips Intellectual Property & Standards Gmbh | Supply circuit, in particular for leds |
DE102007031038A1 (en) * | 2007-07-04 | 2009-01-08 | Tridonicatco Schweiz Ag | Circuit for operating light-emitting diodes (LEDs) |
WO2010023280A1 (en) * | 2008-08-28 | 2010-03-04 | Lemnis Lighting Patent Holding B.V. | Method and circuit for controlling an led load |
US20100079124A1 (en) * | 2008-09-30 | 2010-04-01 | John Laurence Melanson | Adjustable Constant Current Source with Continuous Conduction Mode ("CCM") and Discontinuous Conduction Mode ("DCM") Operation |
Also Published As
Publication number | Publication date |
---|---|
WO2012137130A2 (en) | 2012-10-11 |
EP2695486A2 (en) | 2014-02-12 |
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