公开(公告)号：US20180254626A1

公开(公告)日：2018-09-06

申请号：US15446458

申请日：2017-03-01

申请人： HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

发明人： Mohamed Amin BEMAT ,  Howard LEVERENZ ,  Daniel HUMPHREY

IPC分类号： H02H3/44 ,  H02H7/20 ,  G01R31/02 ,  G01R19/12

CPC分类号： H02H3/44 ,  G01R19/12 ,  G01R19/16576 ,  G01R31/025 ,  H02H3/04

摘要： Examples disclosed herein relate to multi-node system fault management. In some of the examples disclosed herein, a fault detection circuit may distinguish between normal operating conditions of a multi-node system and faults that occur between the overcurrent protection of the system's power supplies and the hot plug protection of the system's nodes. The fault detection circuit may detect these faults by monitoring a voltage at the node's backplane connector prior to the input of the node's hot plug protection interface. If the magnitude of the monitored voltage drops below a threshold voltage at a rate that exceeds a threshold rate, the fault detection circuit may determine that a fault has occurred and may communicate the fault to the power supplies. The power supplies may receive the fault communication and shut off their power outputs to prevent the fault from causing damage to the components in the system.