| 发明名称 | Programmable protected input circuits | ||
| 摘要 | An input protection circuit may include an input node to receive an input signal, and may further include an output node to provide a protected output signal based on the input signal. Protection circuitry may be coupled between the input node and the output node to establish a current path that bypasses the input node and pulls the output pin to a specified reference voltage level in the event of a transient at the input node. A push-pull power supply may be used to provide the reference voltage to the current path, and dissipate any excess voltage by burning it off in a semiconductor device included in the push-pull power supply circuitry. | ||
| 申请公布号 | US9413165(B2) | 申请公布日期 | 2016.08.09 |
| 申请号 | US201313935049 | 申请日期 | 2013.07.03 |
| 申请人 | National Instruments Corporation | 发明人 | Viele Matthew |
| 分类号 | H02H9/00 | 主分类号 | H02H9/00 |
| 代理机构 | Meyertons Hood Kivlin Kowert & Goetzel, P.C. | 代理人 | Meyertons Hood Kivlin Kowert & Goetzel, P.C. ;Hood Jeffrey C. |
| 主权项 | 1. An input protection circuit comprising: an input node configured to receive an input signal; an output node configured to provide a protected output signal based on the input signal; protection circuitry coupled between the input node and the output node, and configured to establish a current path that bypasses the input node and pulls the output pin to a specified reference voltage level in the event of a transient at the input node; and a push-pull power supply configured to provide and maintain the specified reference voltage level for the current path, and dissipate any excess voltage by burning it off in a semiconductor device comprised in the push-pull power supply. | ||
| 地址 | Austin TX US | ||