⚡ 本页包含 AI 生成的分析内容,仅供参考
该论文提出了一种无电容、单电感、4通道全数字集成DC-DC LED驱动器,实现了7.5W输出功率和96%的效率。它旨在减少固态照明的物料清单并增加功能,克服了现有方案中分立元件多或外部无源器件多的问题。
semiconductor-based systems. It is expected that solid-state lighting (SSL) will dominate general lighting in the near future. Two main challenges that must be met in SSL are the reduction of the bill of materials (BOM), and an increase in functionality. In [1], a floating DC-DC buck controller is presented. This controller adds to the BOM, as every device of the power path is discrete and the ASIC can only drive a single LED string. In contrast to that, [2] offers a highcurrent fully integrated power stage. However, several external passives are introduced and the technology inhibits stacking multiple LEDs for high luminous efficacy. To overcome this, [3] presents an integrated HV power path with only the inductor as an external component. In a parallel development, [4] reports an
Stefan Dietrich, Sebastian Strache, Bastian Mohr, Jan Henning Mueller,
Leo Rolff, Ralf Wunderlich, Stefan Heinen RWTH Aachen University, Aachen, Germany Today’s general lighting development is driven by improvements in