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This paper proposes an extended stroboscopic mapping (ESM) method for analyzing soft-switching operating points of resonant inverters. The essential idea of the proposed method is treating the operating period of traditional stroboscopic mapping model as a variable and employing fixed-point theory to find the soft-switching operating points. The method consists of four simple and easy-to-implement...
In Inductively Coupled Power Transfer (ICPT) system, attribute to unidirectional energy transfer, there are many problems such as energy feedback difficultly and low efficiency brought by system open-loop running. This paper put forwards a novel contactless energy bi-directional transfer mode to realize energy exchange between transmitter and receiver. The paper presents a bi-directional energy conversion...
This paper presents a new method for accurately determining all possible steady-state operating points of a switch-mode contactless power transfer (CPT) system. The method is based on a stroboscopic mapping model and accurate calculation of its fixed points corresponding to circuit zero current switching (ZCS) conditions. Four steady-state operating points are identified for, e.g., inductor-capacitor-inductor...
The paper present comparison analysis of current soft-switched methods. Series resonant full bridge topology and parallel resonant full bridge topology were choose for their sine wave current in inductor, which meet requirement of Contactless Power Transfer (CPT) system. The paper also presents a detailed simulation and analysis between series resonant and parallel resonant full bridge topologies...
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