A 900W, 300V to 50V Dc-dc Power Converter with a 30MHz Switching Frequency

被引：31

作者：

Glaser, John S. ^{[1
]}

Nasadoski, Jeffrey ^{[1
]}

Heinrich, Richard ^{[2
]}

机构：

[1] Gen Elect Global Res, Elect Power Convers Lab, Niskayuna, NY USA

[2] Lockheed Martin Corp, Naval Elect & Surveillance Syst, Bethesda, MD USA

来源：

APEC: 2009 IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1- 4 | 2009年

关键词：

D O I：

10.1109/APEC.2009.4802804

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Designers of power conversion circuits are under relentless pressure to increase power density while maintaining high efficiency. A primary path to higher power density is the use of increased switching frequency. In this paper it is argued that the use of switching frequencies in the VHF band (30MHz-300MHz) are a viable path to the achievement of substantive gains in power density. Evidence for this viewpoint is presented in the form of an unregulated 900W prototype dc-dc converter with a 30MHz switching frequency, an input voltage range of 270VDC to 330VDC, and an output voltage of 50VDC. This converter uses a quad module architecture with series input and parallel output to provide acceptable efficiency with the specified input voltage range. This converter operates with peak output power of 1kW at 330VDC input, and has an efficiency of >78% under nominal conditions, with maximum efficiency near 80%.

引用

页码：1121 / +

页数：2

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