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Current-fed GaN Front-end converter for ISOP-IPOS converter-based high power density DC distribution system
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| Author(s) |
Yusuke HAYASHI |
| Abstract |
A current-fed ac-dc converter using Gallium Nitride (GaN) power devices has been proposed to realize high power density ISOP (Input Series and Output Parallel)-IPOS (Input Parallel and Output Series) converter-based dc distribution system. The current-fed converter becomes the strong candidate in the ISOP-IPOS converter-based dc distribution system because this system expands the possibility of the ac-dc converter design without taking the converter I/O voltages and its output power into account. An 1 kW prototype with the efficiency of 95.5\% has been developed by using GaN-HEMTs to show the feasibility. Design consideration for the GaN converter has been also conducted quantitatively taking the low on-resistance, the high-speed switching behavior and its own device structure into account. The ISOP-IPOS converter-based dc distribution system takes full advantage of the current-fed converter and the converter using GaN devices contributes to realizing higher power density dc distribution system. |
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| Filename: | 0339-epe2015-full-02104513.pdf |
| Filesize: | 909.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2016-06-08 by System |
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