SWITCHED RESONANT POWER CONVERSION ELECTRONICS

摘要

A transducer (22) operated as power generating device is driven at a low frequency and collects energy at the low frequency rate. The collected energy is extracted at a much higher frequency. Extracting the energy at a higher frequency enables the use of components, such as inductors (26-L1) having reasonable values and si zes. In one embodiment, a power extracting circuit (24) which includes elements designed to resonate with the transducer (22) at a higher frequency than the frequency at which the transducer (22) is being driven is periodically switched in circuit with the transducer (22). Thus, the electric power generator device operated and controlled by a slowly changing source of energy (e.g., ocean waves, wind, eddies of water) may develop energy at one frequency and may be operated to transfer the energy at another frequency.