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A Hybrid LED Driver With Improved Efficiency
提出一种高效混合LED驱动器，结合开关转换器和无电感驱动方案的优点，实现高功率因数和低闪烁。
95.1%功率效率，0.986功率因数，92%效率（低闪烁配置），15%闪烁
LED驱动器高效率混合拓扑功率因数低闪烁
▸结合开关转换器和无电感驱动方案的优点
▸自动在开关模式和线性模式之间切换
▸可配置为单级或两级解决方案以适应不同需求
Abstract
A high-efficient hybrid light-emitting diode (LED)
driver is introduced in this article. By combining the merits of
conventional switching-converter-based and inductor-less driving
solutions, the proposed topology fully utilizes the input power
from the ac mains without causing considerable switching loss or
excessive voltage stress. With the help of a small-size inductor and
the hybrid scheme, the proposed driver automatically alternates
between switching mode and linear mode as the rectified inp