
35-1
35.1 Introduction
Recently, contactless energy transfer (CET) systems have been developed and investigated widely [see
list of References]. is innovative technology creates new possibilities to supply mobile devices with
electrical energy because elimination of cables, connectors, and/or slip rings increases reliability and
maintenance-free operation of such critical systems as in aerospace, biomedical, and robotics
applications. Figure 35.1 shows a classication of the CET systems.
As “medium” for CET could be used electromagnetic waves, including light, acoustic waves (sound),
as well as electric elds. In the most popular applications, ...