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A narrow-width power-invariant inductive power transfer system (IPTS) along the driving direction is newly proposed in this paper. The conventional I-type power supply rail for on-line electric vehicles (OLEVs) has a very narrow power supply rail with 10-cm width and exposes pedestrians to a very low electromagnetic field due to its alternatively arranged magnetic poles along the driving direction...
A DC-DC buck converter handling three times the nomal transistors' nominal voltage is implemented with 1.8V I/O devices in a 65nm digital process with the aim of creating an analog intellectual property that is robust, easily reconfigurable and cost effective. Moreover, the maximum current density and the efficiency of the powering block reach to 1.28A/mm2 and 93.8%, respectively, with the help of...
In the Inductive Power Transfer System (IPTS) for the On-Line Electric Vehicle (OLEV), the Electro Magnetic Field (EMF) should be lower than 62.5 mG at 20 kHz for the safety of pedestrians. To meet the EMF requirement a new active EMF cancel method for the recently developed I-type IPTS is proposed in this paper. The I-type IPTS has a narrow rail width structure with alternating magnetic polarity...
The Inductive Power Transfer System (IPTS) for On-Line Electric Vehicle (OLEV) developed at KAIST is fully characterized in this paper. The proposed IPTS includes Tesla's resonant transformers and show quite different characteristics comparing with conventional transformers. A current source instead of a voltage source is used for the IPTS at the primary side, and the system is fully resonated for...
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