发明名称 |
Communication line driver protection circuitry, systems and methods |
摘要 |
Embodiments relate to fault detection comparator circuitry and methods that can operate in conjunction with a power-on-reset (POR) scheme to put a chip into a reliable power-down mode upon fault detection to avoid disrupting the communication bus link such that other connected chips and the host can continue to operate. Power-on of the affected chip can then be carried out when the connection with that chip is restored. |
申请公布号 |
US9466979(B2) |
申请公布日期 |
2016.10.11 |
申请号 |
US201414488702 |
申请日期 |
2014.09.17 |
申请人 |
Infineon Technologies AG |
发明人 |
Lim Cheow Guan;Ma Fan Yung |
分类号 |
H02H3/00;H02H11/00;G01R31/28;H02H7/09;H04L25/02;G01R31/40;G01R19/165 |
主分类号 |
H02H3/00 |
代理机构 |
Schiff Hardin LLP |
代理人 |
Schiff Hardin LLP |
主权项 |
1. A method comprising:
detecting a loss of voltage to a device by comparing a signal pad voltage with a supply voltage and ground; disabling power-on-reset circuitry of the device and preventing the device from attempting to power on during the loss of voltage; detecting a restoration of voltage to the device; and powering on the device. |
地址 |
Neubiberg DE |