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http://dx.doi.org/10.17661/jkiiect.2021.14.6.452

Design of EMI reduction of Electric Vehicle Wireless Power Transfer Wireless Charging Control Module with Power Integrity and Signal Integrity  

Hong, Seungmo (Department of Telecommunication Engineering, Soongsil University)
Publication Information
The Journal of Korea Institute of Information, Electronics, and Communication Technology / v.14, no.6, 2021 , pp. 452-460 More about this Journal
Abstract
As the global electric vehicle (EV) market expands, eco-friendly EV that complement performance and safety problems continue to be released and the market is growing. However, in the case of EVs, the inconvenience of charging, safety problems such as electric shock, and electromagnetic interference (EMI) problems caused by the interlocking of various electronic components are problems that must be solved in EVs. The use of wireless power transmission technology can solve the problem of safety by not dealing with high current and high voltage directly and solving the inconvenience of charging EVs. In this paper, in order to reduce EMI a wireless charging control module, which is a key electronic component of WPT of EV. EMI reduction was designed through simulation of problems such as resonance and impedance that may occur in the power supply and signal distortion between high-speed communication that may occur in the signal part. Therefore, through the EMI reduction design with power integrity and signal integrity, the WPT wireless charging control module for electric vehicles reduces 10 dBu V/m and 15 dBu V/m, respectively, in 800 MHz to 1 GHz bands and 1.5 GHz bnad.
Keywords
Electromagnetic Interference; Electric Vehicle; Power Integrity; Signal Integrity; Wireless Power Transfer;
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