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《Journal of Zhejiang University(Engineering Science)》 2004-10
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DC/DC topology classification and selection criterion

GU Yi-lei, LU Zheng-yu, QIAN Zhao-ming(College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)  
Popular communication and computer power structures in the present market were analyzed to find ways to improve the veracity and efficiency of power electronics products designers selecting DC/DC (topologies). Electrical specification's four novel selection criteria of DC/DC topologies for power product design were presented. Input voltage determines whether the soft switching technique is adopted; output voltage range determines whether the synchronous rectifier technique is adopted; input voltage range determines whether the wide range topology is adopted; conversion power determines the quantity and size of switches of the candidate topology. An example of DC/DC topology selection for communication power was given to show how to use the four criteria, which shows the validity of the criteria. Some classical and novel topologies were evaluated (according) to these four criteria. For consulting convenience of the power product designer, a table was presented to show the direct relation between electrical specifications and DC/DC topologies.
【Fund】: 国家自然科学基金资助项目(50237030ZD).
【CateGory Index】: TM46;TM13
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