| 摘要 |
The present invention relates to an apparatus and a use for said apparatus for producing electric power from mechanical vibrations at a frequency f, wherein the apparatus provides a piezo element (1), which is moved by means of the mechanical vibration, for producing an electric AC voltage, and also an impedance matching device for matching the impedance of the piezo element to an optional rectifier, an electrically connected capacitive energy store (Cs) and an energy user (R), which is connected in electrical parallel with the energy store (Cs) and to which an output voltage (U) is applied. The invention is distinguished in that the piezo element (1) has an inductive element (L) electrically connected to it such that an electric parallel resonant circuit is formed by means of the inductive element (L) and a capacitance (C). An electric parallel resonant circuit is provided which effectively increases an electric output power for an apparatus according to the invention. |
