volume | PIER Journals

Abstract

Simultaneous realization of load-independent dual-type output, namely constant current output (CCO) and constant voltage output (CVO), is necessary in some wireless power transmission (WPT) application fields. Therefore, an S-CL compensated WPT system with dual-type output function is proposed in this paper. This proposed system consists of a two-coil loosely coupled transformer（LCT）which can avoid cross-coupling phenomena, a transmitter-side compensation capacitor, a receiver-side compensation capacitor and a receiver-side compensation inductor. Meanwhile, the proposed system can achieve near zero-phase-angle (ZPA) and zero-voltage-switching (ZVS) operations, avoiding power losses caused by reactive circulation. In addition, the theoretical analysis of the system's constant voltage and constant current outputs are further elaborated in this paper, and a test prototype is fabricated to verify the rationality and implementability of the proposed WPT system.

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Mr. Qingsong Sang

Dr. Yilin Wang

Dr. Lin Yang

Dr. Xuebin Zhou