Design Guide – Automotive LED Driver Power Conversion Topology
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Design Guide – Automotive LED Driver Power Conversion Topology

In many systems—including the myriad of regulators deployed in automotive power delivery systems—the design of power conversion regulators is often a difficult and complex task. This article aims to simplify the selection process by explaining the benefits, trade-offs, and applications for different switching topologies used for LED drivers. LEDs are unlike traditional electrical light-producing filament or gas components. Utilizing specific semiconductor junctions, LED manufacturers can produce specific colors of light spanning the entire visible range—as well as IR and UV. In automotive applications, LEDs can increase safety in both daylight and nighttime driving scenarios. Increased efficiency can extend battery life in electric vehicles, and multiple LEDs in a single system can eliminate single component failures.
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