发明名称 |
Charge-type sensor amplifying circuit |
摘要 |
A charge-type sensor amplifying circuit includes an operational amplifier having an inverting input terminal thereof connected to one terminal of a charge-type sensor, a voltage divider having two voltage-dividing points which divide the output voltage from the operational amplifier, a feedback resistor connected between the inverting input terminal of the operational amplifier and one voltage-dividing point of the voltage divider which is on the output terminal side of the operational amplifier, and a feedback capacitor connected in parallel with the feedback resistor. In the charge-type sensor amplifying circuit, the other terminal of the charge-type sensor is connected to the other voltage-dividing point of the voltage divider which is not on the output terminal side of the operational amplifier.
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申请公布号 |
US6407631(B2) |
申请公布日期 |
2002.06.18 |
申请号 |
US20010842738 |
申请日期 |
2001.04.25 |
申请人 |
MURATA MANUFACTURING, CO., LTD. |
发明人 |
YAMASHITA MUNEHARU |
分类号 |
G01D5/24;G01J1/42;G01J1/44;G01J5/34;G01P1/00;G01P15/09;H03F1/30;H03F1/34;H03F3/45;H03F3/70;(IPC1-7):H03F3/45 |
主分类号 |
G01D5/24 |
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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