发明名称 |
Method and device for driving a capacitive control element |
摘要 |
A capacitive control element is charged with a defined charging voltage Uc. From a stored mapping KF, the instantaneous control element capacitance Cp is determined from the charge voltage Uc and a control element voltage Up. In addition, energy E supplied to the control element is determined from the charge voltage Uc and the control element capacitance Cp. According to a deviation of energy E fed to the control element from a stipulated amount of energy Ev, the charge voltage Uc for a next drive process of the control element is regulated. The same process occurs for additional control elements. |
申请公布号 |
US6121715(A) |
申请公布日期 |
2000.09.19 |
申请号 |
US19990335562 |
申请日期 |
1999.06.18 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
HOFFMANN, CHRISTIAN;FREUDENBERG, HELLMUT;GERKEN, HARTMUT;HECKER, MARTIN;PIRKL, RICHARD |
分类号 |
F02D41/20;H01L41/04;H02N2/06;(IPC1-7):H01L41/08 |
主分类号 |
F02D41/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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