用于宽范围高分辨率输出电压及高效率的串联谐振变换器连续脉冲密度调制

Pulse-density modulation (PDM) can achieve high efficiency in high-frequency dc–dc converters by implementing both zero-voltage-switching (ZVS) and zero-current-switching (ZCS). However, the discrete feature of pulse density, defined as the ratio of transferring energy switching cycles $P$ to total switching cycles $N$, limits the voltage regulation flexibility. This article proposes a continuous ...