Comprehensive and Simplified Numerical Design Procedure for Class-E Switching Circuits
Comprehensive and Simplified Numerical Design Procedure for Class-E Switching Circuits
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DOI：
10.1109/access.2021.3119039
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发表时间：
2021
期刊：
影响因子：
3.9
通讯作者：
Wenqi Zhu;Yutaro Komiyama;Kien Nguyen;H. Sekiya
中科院分区：
文献类型：
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作者：
Wenqi Zhu;Yutaro Komiyama;Kien Nguyen;H. Sekiya
提出了用粒子群优化算法对E类开关电路进行全面、简化的数值设计方法。PSO算法不需要近似解和偏导数。因此，所提出的设计方法比基于牛顿方法的设计具有更高的收敛稳定性。粒子群算法还允许设计条件和设计参数之间的不匹配。作为设计实例，利用改进的粒子群算法，通过一次优化，成功绘制了E类放大器和倍频器的多条设计曲线。此外，我们还给出了一个非常简单的E类放大器的设计过程，它只用一个评价函数来确定三个设计参数。与以往的设计方法相比，本文提出的设计方法的设计精度没有下降。进行了电路实验，获得了94.0%的功率转换效率。电路实验结果与数值计算结果吻合较好，验证了所提设计方法的有效性和实用性。
This paper proposes comprehensive and simplified numerical design procedures for the class-E switching circuits with the Particle Swarm Optimization (PSO) algorithm. The PSO algorithm does not require approximate solutions and partial differentiation derivations. Therefore, the proposed design method has higher convergence stability than Newton’s method-based design. It is also a feature that the PSO algorithm allows the mismatch between the design condition and the design parameter numbers. As a design example, we successfully draw the multiple design curves of the class-E amplifier and frequency multipliers by one-time optimization execution with the modified PSO algorithm. Besides, we show a pretty simple design procedure of the class-E amplifier, which uses only one evaluation function for determining three design parameters. The design accuracy of the proposed design method does not deteriorate compared with the previous design method. We carried out circuit experiments, which achieved power-conversion efficiency of 94.0%. The circuit experiment showed agreement with numerical predictions, which confirmed the validity and usefulness of the proposed design method.