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http://dx.doi.org/10.5762/KAIS.2015.16.11.7957

The Trend Analysis of Technology Development for Auxiliary Power Supply of Electric Vehicle  

Han, Young-Jae (Maglev Train Research Team, Korea Railroad Research Institute)
Jo, Jeong-Min (Maglev Train Research Team, Korea Railroad Research Institute)
Lee, Jin-Ho (Maglev Train Research Team, Korea Railroad Research Institute)
Lee, Chul-Ung (Department of Management of Technology, Korea University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.11, 2015 , pp. 7957-7963 More about this Journal
Abstract
R&D trend for Auxiliary Power Supply(APU) of electric vehicle can be well understood by analyzing patents at home and abroad. Based on this trend analysis, domestic technology development direction is proposed. To get technique trend, patents of Korea, Japan, Europe and America published until February of 2014 are analyzed by WIPS DB. First, power converter and transformer two big category are classified. Power converter can be classified into resonant DC to DC converter and resonant Half bridge inverter; transformer can be classified into high frequency transformer, ferrite transformer and matching transformer. By analyzing R&D trend of different counties, companies and years, specific technology needed to be developed and trend of technology can be accurately grasped.
Keywords
Auxiliary Power Supply; DC/DC converter; Patent analysis; Technology trend; Technology classification;
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