Abstract
High-power LED lighting driver technology is one of the key issues of its application and development. Through analysis of the high-power LED light source's electrical characteristics and performance requirements to driver circuit, combining with several common constant-current driver circuits, this paper studies these types of constant-current driver circuit's structure, performance and driving principle, discusses how to affect driver efficiency to the structure and components of the driver circuit, and points out some key problems of the constant-current driver circuit design that should be noted and the intelligent trend of the driver circuit design.
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