| 发明名称 | Charge transfer circuit for capacitive sensing | ||
| 摘要 | A charge transfer circuit for capacitive sensing is disclosed. The charge transfer circuit for capacitive sensing includes a variable capacitor, an X-drive unit, and an active output voltage feedback (AVF) part. The variable capacitor is disposed between the output terminal of an X-drive line and the input terminal of a Y-drive line. The X-drive unit is connected between the input unit of the X-drive line and a voltage input terminal. The active output voltage feedback (AVF) part is connected between the output terminal of the Y-drive line and a voltage output terminal. The output terminal of the AVF part is connected to the output terminal of the Y-drive line. | ||
| 申请公布号 | US9279843(B2) | 申请公布日期 | 2016.03.08 |
| 申请号 | US201414448431 | 申请日期 | 2014.07.31 |
| 申请人 | Hanshin University Industry-Academic Cooperation Foundation | 发明人 | Yeo Hyeop Goo |
| 分类号 | H03B1/00;G01R27/26 | 主分类号 | H03B1/00 |
| 代理机构 | Reinhart Boerner Van Deuren P.C. | 代理人 | Reinhart Boerner Van Deuren P.C. |
| 主权项 | 1. A charge transfer circuit for capacitive sensing, comprising: a variable capacitor disposed between an output terminal of an X-drive line and an input terminal of a Y-drive line; an X-drive unit connected between an input terminal of the X-drive line and a voltage input terminal; and an active output voltage feedback (AVF) part connected between an output terminal of the Y-drive line and a voltage output terminal; wherein an output terminal of the AVF part is connected to the output terminal of the Y-drive line, wherein each of the X-drive line and the Y-drive line comprises: a parasitic resistor configured such that an output or input terminal thereof is connected to the variable capacitor; and a parasitic capacitor configured such that an input terminal thereof is connected to an input or output terminal of the parasitic resistor. | ||
| 地址 | Gyeonggi-Do KR | ||