Abstract

In this paper, the results of the theoretical and experimental studies of a single-capacitor mechanical-to-electrical energy converter based on the Bennet doubler with a power source in a variable capacitor branch are presented. The analytical expressions obtained for calculating its basic characteristics make it possible to considerably simplify the search for parameters of the converter elements at the preliminary design stage. It is shown that the results of the theoretical calculations are in good agreement with the experimental data, which allows using them for the optimal selection of the converter elements in the development of electromechanical microgenerators, active vibration and acceleration sensors, and threshold devices detecting the excess of the permissible critical value of the structure’s vibration amplitude. The advantage of the investigated structure, in comparison with the basic design of the Bennet doubler, lies in its versatility and the converter’s capability to work under the action of a mechanical force leading the capacitance modulation depth of the capacitor to be less than 2. As a result, it is possible to extend the range of amplitudes of the external mechanical vibrations and the scope of the variable capacitors used.

中文翻译：

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基于Bennet Doubler的单电容器静电振动能量转换器

摘要

本文介绍了基于Bennet倍增器并在可变电容器分支中具有电源的单电容器机电能量转换器的理论和实验研究结果。为计算其基本特性而获得的解析表达式使得可以在初步设计阶段大大简化对转换元件参数的搜索。结果表明，理论计算结果与实验数据吻合良好，可以将其用于机电微型发电机，有源振动和加速度传感器以及检测多余电流的阈值设备开发中的换流器元件的最佳选择。结构的振动幅度的允许临界值。