@article{Pinuela:2013:10.1109/TPEL.2012.2215887,
author = {Pinuela, M and Yates, DC and Lucyszyn, S and Mitcheson, PD},
doi = {10.1109/TPEL.2012.2215887},
journal = {IEEE Transactions on Power Electronics},
pages = {2437--2447},
title = {Maximizing DC-to-Load Efficiency for Inductive Power Transfer},
url = {http://dx.doi.org/10.1109/TPEL.2012.2215887},
volume = {28},
year = {2013}
}

Download

TY  - JOUR
AB  - Inductive Power Transfer (IPT) systems for transmitting tens to hundreds of watts have been reported for almost a decade. Most of the work has concentrated on the optimization of the link efficiency and have not taken into account the efficiency of the driver. Class-E amplifiers have been identified as ideal drivers for IPT applications, but their power handling capabilityat tens of MHz has been a crucial limiting factor, since the load and inductor characteristics are set by the requirements of the resonant inductive system. The frequency limitation of the driver restricts the unloaded Q factor of the coils and thus the link efficiency. With a suitable driver, copper coilunloaded Q factors of over 1,000 can be achieved in the low MHz region, enabling a cost-effective high Q coil assembly. The system presented in this paper alleviates the use of heavy andexpensive field-shaping techniques by presenting an efficient IPT system capable of transmitting energy with a dc-to-load efficiency above 77% at 6 MHz across a distance of 30 cm. To the authorsknowledge this is the highest dc-to-load efficiency achieved for an IPT system without introducing restrictive coupling factor enhancement techniques.
AU  - Pinuela,M
AU  - Yates,DC
AU  - Lucyszyn,S
AU  - Mitcheson,PD
DO  - 10.1109/TPEL.2012.2215887
EP  - 2447
PY  - 2013///
SN  - 0885-8993
SP  - 2437
TI  - Maximizing DC-to-Load Efficiency for Inductive Power Transfer
T2  - IEEE Transactions on Power Electronics
UR  - http://dx.doi.org/10.1109/TPEL.2012.2215887
VL  - 28
ER  - 

Download