A novel Inductive Contactless Energy Transfer (ICET) system is presented in this paper. The energy is transferred using a rotatable air gap transformer and a power electronic converter. To minimize total losses of the system a series resonant circuit is applied, assuring zero current switching condition for IGBT power transistors. The analytical expression of the transfer dc voltage gain is giv...

Contactless powering of small electronic components has lately received growing attention for wireless applications in which battery replacement or tethered charging is undesired or simply impossible, and ambient energy harvesting is not a viable solution. As an alternative to wellstudied methods of contactless energy transfer, such as the inductive coupling method, the use of ultrasonic waves ...

The aim of this paper is review of power electronics based contactless energy transfer (CET) systems. Various techniques of the CET systems are divided according to a medium used for energy transfer and presented in the following groups: acoustic based CETs, light based CETs, capacitive based CETs, and the largest group of inductive coupled CET systems. The basic principles and the latest devel...

Nowadays the groundbreaking tools of contactless energy transfer reveals new opportunities to supply portable devices with electrical by eliminating cables and connectors. One important applications such technology is providing electric hybrid vehicles, (EV) (HEV). These contribute use cleaner protect our environment. In present paper, after exposing (CET) available systems, we examine appropri...

Using a pre-designed, simple, and cost-effective acoustic hologram alongside single ultrasonic transducer, as an source/transmitter, enables new capabilities in multi-focal focusing, patterning, contactless power transfer (UPT), to selectively charge sensors/receivers. In this work, different holograms are designed that cover single- four-focus patterning for UPT purposes. The numerically creat...