An Efficient Piezoelectric Energy Harvesting Circuit With Series-SSHI Rectifier and FNOV-MPPT Control Technique. - Shengheng Fang; Huakang Xia; Yinshui Xia; Yidie Ye; Shi Ge 001; Xiudeng Wang; Zhidong Chen (IEEE Trans. Ind. Electron., 2021)