DocumentCode
164683
Title
Programmable pulsed current driver for high power LEDs applications
Author
Vidrascu, Mihai ; Vladescu, Marian
Author_Institution
“Politeh.” Univ. of Bucharest, Bucharest, Romania
fYear
2014
fDate
23-26 Oct. 2014
Firstpage
123
Lastpage
127
Abstract
To obtain maximum performance from a LED, it must be driven with a constant current. The maximum continuous current allowed is limited by the thermal characteristics of the package, but often the die supports higher peak currents. By driving the LED with high current pulses, the optical flux is greatly increased and more distant objects can be illuminated. This paper describes the design of such a driver and the results obtained from driving high power LEDs.
Keywords
driver circuits; light emitting diodes; constant current; current pulse; high-power LED application; maximum continuous current; optical flux; package thermal characteristics; peak currents; programmable-pulsed current driver; Capacitors; Connectors; Current control; Light emitting diodes; MOSFET; Power supplies; Switches; LED driver; high power LED; pulsed current;
fLanguage
English
Publisher
ieee
Conference_Titel
Design and Technology in Electronic Packaging (SIITME), 2014 IEEE 20th International Symposium for
Conference_Location
Bucharest
Type
conf
DOI
10.1109/SIITME.2014.6967008
Filename
6967008
Link To Document