| 发明名称 | Overvoltage protection analog switch | ||
| 摘要 | An apparatus relates generally to an analog switch. In such apparatus, the analog switch has a transistor. A first node of the transistor is coupled to an input node of the analog switch. A second node of the transistor is coupled to an output node of the analog switch. An overvoltage protection circuit is coupled to provide a control voltage to a gate node of the transistor. The overvoltage protection circuit is used to at least substantially reduce an overvoltage state caused by an analog voltage at the input node of the analog switch exceeding an overvoltage threshold voltage. | ||
| 申请公布号 | US9461465(B1) | 申请公布日期 | 2016.10.04 |
| 申请号 | US201314138708 | 申请日期 | 2013.12.23 |
| 申请人 | Pericom Semiconductor Corporation | 发明人 | Tam Yiu-Ming;Lo Chi-Wa;Cheung Sin-Luen |
| 分类号 | H02H3/20;H02H9/00;H02H9/04 | 主分类号 | H02H3/20 |
| 代理机构 | The Webostad Firm | 代理人 | The Webostad Firm |
| 主权项 | 1. An apparatus, comprising: an analog switch having a transistor; wherein a first node of the transistor is coupled to an input node of the analog switch; wherein a second node of the transistor is coupled to an output node of the analog switch; and an overvoltage protection circuit coupled to provide a control voltage to a gate node of the transistor; wherein the overvoltage protection circuit is configured to at least substantially reduce an overvoltage state caused by an analog voltage at the input node of the analog switch exceeding an overvoltage threshold voltage and allow passage of a constrained amount of the analog voltage through the analog switch during the overvoltage state. | ||
| 地址 | Milpitas CA US | ||