Patent ID: 9319101
Filing Date: 2016-04-19
CPC Classification: G01R,H04B

Claim Text:
1. A ground fault detection system for detecting a ground fault in a system having a first node, a second node, and a communication channel between the first node and the second node, the ground fault detection system comprising: a bias generator electrically connected to the communication channel system, the bias generator having a first connection to ground and a second connection for output of a non-ground voltage, and the bias generator configured to establish a bias voltage on a first portion of the communication channel and a second portion of the communication channel; a first resistor electrically connected to the second connection of the bias generator to receive the non-ground voltage and electrically connected to the first and second portions of the communication channel, the first resistor being connected between the bias generator and the first and second portions of the communication channel; and a first detector circuit configured to detect a first voltage across the first resistor and configured to output, based on the detection of the first voltage, a signal indicative of whether the ground fault exists in the communication channel system.