A planar 75% efficient GaN 1.2-GHz DC-DC converter with self-synchronous rectifier

A planar 75% efficient GaN 1.2-GHz DC-DC converter with self-synchronous rectifier
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A%20平面%2075%%20高效%20GaN%201.2-GHz%20DC-DC%20转换器%20with%20自同步%20整流器

DOI:
10.1109/mwsym.2015.7166833
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发表时间:
2015
期刊:
2015 IEEE MTT-S International Microwave Symposium
影响因子:
--
通讯作者:
Z. Popovic
Z. Popovic
中科院分区:
--
文献类型:
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作者:
I. Ramos;M. Ruiz;J. A. García;D. Maksimović;Z. Popovic

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本文介绍了一种工作在1.2GHz的DC-DC变换器的设计和特性,在4.6W的输出功率下,最大效率为75%,在58%的效率下,最大输出功率为13 W。微波转换器由耦合到GaN E类整流器的GaN E类功率放大器组成。该电路是平面的,在75%效率点处呈现出约0.65W/cm 3的功率密度。该整流器可以与输入栅极驱动或自同步与一个单一的RF输入。
This paper presents the design and characterization of a DC-DC converter operating at 1.2GHz with a maximum efficiency of 75% at 4.6W output power, and with a maximum output power of 13W at 58% efficiency. The microwave converter consists of a GaN class-E power amplifier coupled to a GaN class-E rectifier. The circuit is planar and exhibits a power density of approximately 0.65W/cm3 at the 75% efficiency point. The rectifier can be operated with input gate drive or selfsynchronously with a single RF input.