Power Integrations, Inc.
SINGLE-WIRE BUS MULTI-GROUP FAULT COMMUNICATION FOR HALF-BRIDGE INVERTER MODULES

Abstract:

A fault communication system includes a system controller and a plurality of devices. Each one of the plurality of devices includes a single fault terminal. A fault bus consisting of only a single wire coupled to the system controller and the plurality of devices is also included. The fault bus is coupled to provide multidirectional multi-fault group communication between the plurality of devices and the system controller. The single fault terminal of each one of the plurality of devices includes is coupled to the fault bus to provide the multidirectional multi-fault group communication between the plurality of devices and the system controller.