Abstract
To reduce the impact of load changes on the output current, a double LCC compensation network is designed to realize the wide load constant current output. First of all, by studying the basic characteristics of LCC compensation, the condition of realizing soft switch by inverter is deduced. Secondly, considering the parasitic resistance under the condition of loosely coupled transformer, the mutual inductance model of the system were analysed. And in keeping the coupling coefficient k and frequency the same situation of LCC-P and double LCC constant current compensation system, comparing the maximum output power draw with double LCC compensation when the conclusion of the output power is larger. Finally, the correctness and validity of theoretical analysis and design results are verified by simulation and experiments.
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