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A 9115 Efficient 235-V Input 1035-V Output Hybrid Boost Converter for LED-Driver
提出一种混合升压转换器架构，用于提高移动应用中LED驱动器的效率。
180nm BCD工艺，输入2.35-10.35V，输出30V，0-100mA负载电流，91.15%峰值效率（30mA时）
混合升压转换器LED驱动器开关电容软充电功率效率
▸采用低频时间交错串并联开关电容（SC）级与电感升压转换器级联架构
▸利用升压级电感实现飞跨电容软充电以最小化电荷共享损耗
▸采用低电压额定开关显著降低开关损耗
Abstract
This article presents a hybrid boost converter archi-
tecture for improving the efficiency of light-emitting diode (LED)
drivers used in mobile applications. By cascading a low-
switching frequency time-interleaved series–parallel switched-
capacitor (SC)-stage with an inductive-boost converter, we
facilitate lower voltage-rated switches, thus significantly reducing
the switching losses. Charge-sharing losses of the SC stage are
minimized by soft-charging flying capacitors with the inductor
of the