| 摘要 |
The invention relates to an electronic device with electrical supply circuit (12m), with variable capacitor (11, 211, Cv) varying through alternating mechanical movement (10). The supply comprises, in the form of passive components and with no means of synchronization: - generating branch (21) comprising in series the variable capacitor and a bias capacitor (212, C1), which is wired in parallel with a rectifying circuit (23, 23') and a storage branch (24), between: • base node (NB), on the variable capacitor side, • an output node (S), on the bias capacitor side (211, C1); - unidirectional charge return branch (22): • to the generating branch, through a bias node (P) between variable capacitor and bias capacitor, • from the rectifier, receiving part of the electrical energy produced; the circuit comprises a voltage multiplier (MT) connected to the bias node (P) so as to apply a voltage multiplied with respect to that existing in between the output node, and - the base node (NB) or one (OUT) of the ends of the storage branch. |
