TY - CHAP A1 - Seliger, Norbert A1 - Honsa, Johannes T1 - Time-variable Mutual Inductance for Enhanced Inductive Power Transmission T2 - Proceedings International Symposium on Fundamentals of Electrical Engineering 2023 (ISFEE 2023) N2 - Enhanced inductive power transmission (IPT) between coaxially arranged circular coils is introduced by time-modulation of the mutual inductance. This modulation is accomplished by coherent switching of the short circuit current induced in a third loop. An analytical circuit model supporting the design for future time-modulated IPT systems is derived. We demonstrate an increase in load rms-voltage by 13% (28% gain in power) compared to an unmodulated transfer on an experimental system operating at fundamental frequencies ranging from 40kHz to 500kHz. KW - Mutual Inductance KW - Inductive Power Transmission KW - Time-variable Inductance Y1 - 2023 SN - tbd PB - IEEE CY - Bucharest, Romania ER -