专利名称：Method and apparatus for charging and
discharging a piezoelectric element
发明人：REINEKE, JOERG,HOCK, ALEXANDER申请号：EP97121557.9申请日：19971208公开号：EP0871230A1公开日：19981014
专利附图：
摘要：The method involves using an element (2) acting as an inductance for thecharging and discharging current. The charging and discharging currents are at leastpartly passed through the same inductive element. The inductive element is a coil. The
piezoelectric element (111,121,..) is charged by repeatedly opening and closing acharging switch (3); closing the switch stores energy in the inductance and opening theswitch causes the stored energy to be output to the piezoelectric element.
申请人：ROBERT BOSCH GMBH
地址：Postfach 30 02 20 70442 Stuttgart DE
国籍：DE
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