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A novel low-cost current-sharing method for automotive LED-lighting systems
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| Author(s) |
Werner THOMAS, Johannes PFORR |
| Abstract |
A novel low cost and passive current-sharing method for parallel connected LEDs is presented. The current-balancing concept is based on discontinuous inductor currents. An analysis has been performed and a prototype converter has been built and tested. The prototype converter drives 36 high-brightness LEDs consisting of six parallel strings with six high-brightness LEDs connected in series. The converter is designed for an automotive head-light system operating directly from the 14V electrical automotive power net. Experimental results are in good correlation with theoretical predictions and demonstrate the good current-balancing performance. |
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| Filename: | 0689-epe2009-full-10354802.pdf |
| Filesize: | 329.2 KB |
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| Type |
Members Only |
| Date |
Last modified 2010-01-27 by System |
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