发明名称 |
Reset switch for a micromachined device |
摘要 |
In a circuit for use with a micromachined device having a movable mass that forms an inner electrode of a differential capacitor, oppositely phased square waves are applied to two outer electrodes of the differential capacitor. A reset voltage is applied to the inner electrode synchronously with the square waves to stabilize and control the potential on the inner electrode. The signal on the inner electrode is demodulated by sampling during a first half of the square wave and a second half of the square wave between applications of the reset pulse to obtain a voltage that does not contain noise due to the reset switch.
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申请公布号 |
US5748004(A) |
申请公布日期 |
1998.05.05 |
申请号 |
US19960616876 |
申请日期 |
1996.03.15 |
申请人 |
ANALOG DEVICES, INC. |
发明人 |
KELLY, THOMAS W.;MEMISHIAN, JOHN |
分类号 |
G01P15/125;(IPC1-7):G01P15/125;G01R27/26 |
主分类号 |
G01P15/125 |
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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