A SEPIC fed inductive charging device for electric vehicles

Actually, there is a controversial discussion in automotive industry if non-contact power supply is able to avoid the disadvantages of conductive vehicle charging systems. Beside several benefits, concerning a higher charging comfort and a higher immunity against vandalism, non-contact charging systems possess the drawback of less efficiency compared to conventional charging devices. The approach described in this paper is the deployment of a SEPIC based rectifier instead of a conventional power factor correction unit. The SEPIC unit substitutes both the power factor correction unit and an also required DC-DC converter. Aim of this replacement is the reduction of losses within the topology chain to increase efficiency of the entire charging device.