| 发明名称 |
Overvoltage and Surge Protection in a Power Over Ethernet Device |
| 摘要 |
In some embodiments, powered devices, circuits, and methods are disclosed that may include biasing a hot swap switch to couple a capacitor of a DC-DC converter to negative supply node when an input voltage exceeds a threshold and biasing a telephony switch to couple a positive supply node to a negative supply node when the input voltage exceeds the threshold. Further, the method may further include deactivating the hot swap switch after a period of time, and continuing to bias the telephony switch. |
| 申请公布号 |
US2017019262(A1) |
申请公布日期 |
2017.01.19 |
| 申请号 |
US201514800616 |
申请日期 |
2015.07.15 |
| 申请人 |
Silicon Laboratories Inc. |
发明人 |
Horváth Vince András;Marozsák Tamás;Onódy Péter;Gammel John |
| 分类号 |
H04L12/10 |
主分类号 |
H04L12/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method comprising:
biasing a hot swap switch to couple a capacitor of a DC-DC converter between positive and negative supply when an input supply voltage exceeds a threshold; biasing a telephony switch to couple a positive supply node to a negative supply node when the input voltage exceeds the threshold; and after a period of time, deactivating the hot swap switch and continuing to bias the telephony switch |
| 地址 |
Austin TX US |
