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Design and Implementation of Battery Charger with Zero-Voltage-Switching Resonant Converter for Photovoltaic Arrays

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3 Author(s)
Ying-Chun Chuang ; Dept. of Electr. Eng., Kun Shan Univ., Tainan ; Hung-Shiang Chuang ; Yu-Lung Ke

The high-frequency resonant converter has numerous well-known advantages over traditional hard switching converters. The most important advantage is that it offers a lower switching loss and a higher power density. Additionally, the soft-switching current waveform characterizes lower electromagnetic interference (EMI). This study presents the circuit configuration with the least components to realize a highly efficient solar energy battery charger with a zero-voltage-switching resonant converter. The optimal values of the resonant components are determined by applying the characteristic curve and the electric functions derived from the circuit configuration. The experiment demonstrates the switching on and off of the main switch in a solar energy battery charger with a zero-voltage-switching resonant converter, whose switches are all operated using zero-voltage switching. The circuit efficiency in the overall charging process exceeds 80%

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Industrial and Commercial Power Systems Technical Conference, 2006 IEEE

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