| 摘要 |
<p>PCT No. PCT/DE98/01158 Sec. 371 Date Jun. 22, 1999 Sec. 102(e) Date Jun. 22, 1999 PCT Filed Apr. 24, 1998 PCT Pub. No. WO99/07026 PCT Pub. Date Feb. 11, 1999A method and a device for charging and discharging a piezoelectric element are described. The charging current charging the piezoelectric element and the discharging current discharging the piezoelectric element, respectively, are conducted via a component having inductive properties. switch provided in the charging circuit or a switch provided in the discharging circuit is repeatedly actuated in such a way during the charging and the discharging, respectively, that the piezoelectric element is brought to a predetermined voltage by a predetermined average charging or discharging current.</p> |
