A resonant switch-mode power supply for the microwave electrothermal thruster (MET) is presented in this paper. The converter is operated with soft-switching at high frequency and exhibits a high efficiency. The soft switching technique used in this converter and the current-source inductor at the input minimize the EMI noise. Electric isolation between input and output is achieved with a center-tap transformer, whose magnetizing inductance is used as the resonant inductance of its resonant tank. The resulting high power density and increased reliability of the converter make it very suitable for aerospace applications. Simulation and experimental results of a 28 V/4.5 kV example are also presented.
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机译：本文介绍了一种用于微波电热推进器（MET）的谐振开关模式电源。该转换器在高频下通过软开关操作，显示出高效率。该转换器中使用的软开关技术和输入处的电流源电感器将EMI噪声降至最低。中心抽头变压器可实现输入与输出之间的电气隔离，该变压器的励磁电感用作其谐振回路的谐振电感。转换器带来的高功率密度和更高的可靠性使其非常适用于航空航天应用。还给出了一个28 V / 4.5 kV示例的仿真和实验结果。
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