Electronic driving circuit for a bistable actuator |
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| 申请号 | EP99204082.4 | 申请日 | 1999-12-02 | 公开(公告)号 | EP1014413A3 | 公开(公告)日 | 2001-12-12 |
| 申请人 | ABB Ricerca SpA; | 发明人 | Colombo, Franco; Colonna, Donato; Manara, Angelo; Turati, Walter; | ||||
| 摘要 | An electronic driving circuit for a bistable actuator activated by piezoelectric elements, particularly for residual-current devices, the circuit comprising voltage step-up means which are suitable to step up and store a voltage generated across a secondary winding of a current sensor, the step-up means being connected to threshold setting means which are suitable to determine an intervention threshold of a bistable actuator activated by piezoelectric elements, whose activation is determined by an excitation voltage applied across it which is higher than the voltage threshold set by the threshold setting means. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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