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http://dx.doi.org/10.6113/TKPE.2021.26.3.199

High Power-Density LDC Design for Ultra-Compact Electric Vehicles  

Kim, Tae-Won (Dept. of Electrical and Electronic Convergence System Engineering. Keimyung University)
Lee, Jae-Won (Dept. of Electrical and Electronic Convergence System Engineering. Keimyung University)
Kim, Jun-Min (Dept. of Mechanical Systems Engineering Electronics, Hansung University)
Kim, Gu-Yong (MDM Inc.)
Kim, Jun-Ho (Dept. of Electrical Energy Engineering. Keimyung University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.26, no.3, 2021 , pp. 199-204 More about this Journal
Abstract
Ultra-compact electric vehicles have narrow space for power conversion devices. This work presents schemes to achieve the high-power density of a low-voltage DC-DC converter (LDC): simplifying a converter structure by using sync-buck topology, applying a planar inductor using PCB winding, and applying a plate-type heat sink. The heat sink is placed between two PCBs, which increases the contact surface between the PCB and the heat-dissipating device. It enables the miniaturization of the converter to improve the conditions of heat radiation. The validity of the proposed scheme is verified through the experiment using a 500 W(12 V, 41.67 A) prototype with an input voltage range from 58 V to 84 V.
Keywords
High power-density; Low voltage DC-DC converter; Sync-buck converter; Ultra-compact electric vehicles;
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  • Reference
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