Electrostatic vibrational energy converter with two variable capacitors

摘要: Abstract The electrostatic two-capacitor vibration-to-electrical energy converter based on the Bennet doubler circuit with a power source in variable capacitor branch is studied both theoretically and experimentally. variations of capacitances opposite phase in-phase different modulation depths are considered. Analytical expressions evaluating main characteristics enabling to significantly simplify optimization process during design derived. It shown that theoretical results good agreement obtained experimental data, making it possible use them for optimal parameters choice when developing electromechanical microgenerators or harvesters, active vibration acceleration sensors, as well threshold devices. advantage investigated interfacing comparison basic versatility ability operate under action small mechanical vibrations (excitations) causing capacitance depth less than 2. also vary critical within rather wide range getting autostabilization mode even greater As result, becomes expand used amplitudes external necessary capacitors.