OVER-VOLTAGE AND GROUND FAULT PROTECTION FOR BUS CONNECTORS

摘要

Over-voltage and ground fault protection for bus connectors. A protection circuit comprising a first USB VBUS terminal 1a connected to an USB VBUS terminal of a first controller, a first USB data terminal 2a, 3a connected to an USB data terminal of a first controller, a second USB VBUS terminal 1b connected to an USB VBUS terminal of a second controller, a second USB data terminal 2b, 3b connected to an USB data terminal of a second controller, a VBUS line electrically coupling the two USB VBUS terminals 1a, 1b, a data line electri-cally coupling the two USB data terminals 2a, 2b, 3a, 3b, an interrupter 15a - 17b arranged in the VBUS line or in the da-ta line, wherein operation of the interrupter 15a - 17b interrupts the VBUS line or the data line, a control circuit 10 coupled to interrupter 15a - 17b.