| 摘要 |
Electromechanical power converters for delivering electric power to a primary load are described. In one aspect, an electromechanical power converter includes first and second electrodes, an electret, and a power extraction circuit. The first and second electrodes form a variable capacitor with a capacitance that varies over an operative capacitance range as a result of relative electrode movement in response to mechanical energy. The electret is disposed between the first and second electrodes. The power extraction circuit is coupled between the first and second electrodes and is operable to conduct charge between the electrodes through the primary load during a discharge phase and to set the electrodes to an inter-electrode reset voltage during a reset phase.
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