European Conference on Power Electronics and Applications · 2009 · 32 citations · 5 references
EngineeringAutomotive EngineeringElectrical EngineeringAutomotive ElectronicsElectric Vehicle TechnologyPower ElectronicsConverter TopologiesDc-dc ConvertersElectric Vehicle ElectronicsLight SourcesLighting ElectronicsPower Electronics For Electric VehiclesAutomotive Headlamp SystemsConverter Topology DesignEnergy Efficiency In Vehicle LightingLed LightingLighting Circuits
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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Georg Sauerlander, Dirk Hente, Harald Radermacher et al. · Conference record · 2006 · 85 citations