Inductively coupled wireless power transfer with Class-E2 DC-DC converter
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
This paper proposes an inductive coupled wireless power transfer (WPT) system with class-E2 dc-dc converter along with its design procedure. The proposed WPT system can achieve high power-conversion efficiency at high frequencies because it satisfies the class-E zero-voltage switching and zero-derivative-voltage switching conditions on both the inverter and the rectifier. By using the class-E inverter as a transmitter and the class-E rectifier as a receiver, high power-delivery efficiency can be achieved in the designed WPT system. By using a numerical design procedure proposed in the previous work, it is possible to design the WPT system without considering the impedance matching for satisfying the class-E ZVS/ZDS conditions. The experimental results of the design example showed the overall efficiency of 85.1 % at 100 W output power and 200 kHz operating frequency.
CitationNagashima, T. [et al.]. Inductively coupled wireless power transfer with Class-E2 DC-DC converter. A: European Conference on Circuit Theory and Design. "2013 European Conference on Circuit Theory and Design (ECCTD 2013): 8-12 september 2013, Dresden, Germany". Dresden: Institute of Electrical and Electronics Engineers (IEEE), 2013, p. 1-4.
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