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Study of High-power Resonant Transition Soft-switching Techniques VVVF
ming zheng -feng; ni guang-zheng; zhou wen-yun; huang xiao-dong; zhong yan-ru; tong jian-li( college of electrical engineering zhejiang university; hangzhou zhejiang 310027 china)( xi an university of technology; xi an shaanxi 710048 china)( xi an kasuga electrical corp; xi an shaanxi 710075 china)
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