基于谷值电流检测与恒定有效占空比控制的飞跨电容多电平变换器主动电压平衡

One of the challenges of utilizing flying capacitor multi-level (FCML) converters is the flying capacitor balancing. Poorly balanced flying capacitors increase the switch voltage stress, which is detrimental to performance and device rating requirements. Previously, valley current detection was shown as a potential method to balance flying capacitors, but the method suffers from poor flying capaci...