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This paper presents a numerical investigation for dynamic characteristic analysis of electromagnetic actuators for gas circuit breakers. It analyzed the driving part of the distance between the permanent magnet and the core thickness. It was changed various parameters to find the optimal shape. The magnetic flux density compare with air gap in the moving part. Operation speed is faster in the shape...
Wireless power transfer (WPT) technology is becoming increasingly popular for wireless charging of mobile phones and electrical vehicles. Because high power energy is transferred via air, however, the problem of electromagnetic radiated emission from WPT systems is expected to be serious. In this paper, an electromagnetic interface (EMI) and radiation from WPT systems are discussed. Three example...
Inductive charging is a convenient method to transfer electrical power from a source to the batteries without any electrical contact. The problem is that inductive charging technologies may have electromagnetic compatibility (EMC) issues caused by leakage magnetic field. In this paper, an inductive charger design for electric vehicles (EVs) named as Handheld Resonant Magnetic Coupling Charger (HH-RMCC)...
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