A 100W and 91% GaN-Based Class-E Wireless-Power-Transfer Transmitter with Differential-Impedance-Matching Control for Charging Multiple Devices. - Cheng-Yu Xie; Shang-Hsien Yang; Shen-Fu Lu; Fa-Yi Lin; Yen-An Lin; You-Zheng Ou-Yang; Ke-Horng Chen; Kuo-Chi Liu; Ying-Hsi Lin (ISSCC, 2019)