Clare, Lindsay R.Lindsay R.ClareWorgan, PaulPaulWorganStark, Bernard H.Bernard H.StarkSalah-Eddine, AdamiAdamiSalah-EddineCoyle, DavidDavidCoyle2015-06-052015-06-052015 IEEE2015-05-149781467374477http://hdl.handle.net/10197/6601IEEE Wireless Power Transfer Conference, Boulder, Colorado, USA,13-15 May, 2015Designers of on-body health sensing devices with inductive power transfer (IPT) face a number of trade-offs. Safe exposure limits should be maintained, and protective housing and padding are generally needed; however, these impose compromises on the power-transfer-system design. This paper analyses these trade-offs and proposes a design route to achieving high power transfer in the presence of field restrictions and separations for padding or housing materials. An IPT system using a Class D coil-driver and switched-mode power-conditioning is designed to provide regulated d.c. and energy storage. Compliance with ICNIRP 1998 guidelines is demonstrated, at a power level that is sufficient to power typical on-body medical sensing devices.enOn-body sensingInductive powerWireless power transferHealthcareConference Publication10.1109/WPT.2015.71401712015-05-21https://creativecommons.org/licenses/by-nc-nd/3.0/ie/