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Class-E power converters for AC (50/60 Hz) wireless transmission

机译：适用于AC（50/60 Hz）无线传输的E类功率转换器

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摘要

In this paper, class-E power amplifiers (PAs) and rectifiers, operating at UHF band, are properly integrated in efficient AC-to-RF and RF-to-AC converters for their use in 50/60 Hz wireless power transmission (WPT). Slightly modifying a center-tap full-wave rectifier, it is proved that a 915 MHz frequency carrier may be high-level amplitude modulated by each of the semi-cycles of the utility waveform. Assuming those components are transmitted by means of orthogonal antenna polarizations, the high-fidelity recovery of both semi-sinusoids in the remote position is also demonstrated, to be stepped-up and combined at the Δ port of an additional center-tap transformer. GaN HEMT packaged devices were selected for the designed PAs, while Schottky diodes for the rectifiers, resulting in average efficiency figures of 83.3% and 75.4%, respectively.
机译：本文将在UHF频段运行的E类功率放大器（PA）和整流器正确集成到有效的AC-RF和RF-AC转换器中，以用于50/60 Hz无线功率传输（WPT） ）。稍微修改中心抽头全波整流器，可以证明可以通过效用波形的每个半周期对915 MHz频率载波进行高电平幅度调制。假设这些分量是通过正交天线极化传输的，则还演示了在偏远位置对两个半正弦波的高保真度恢复，并在另一个中心抽头变压器的Δ端口上进行了合并。设计的功率放大器选择了GaN HEMT封装器件，整流器选择了肖特基二极管，平均效率分别为83.3％和75.4％。

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