Abstract: A Universal Serial Bus Type-C (USB-C) controller with a floating ground architecture for fault detection is described. A USB-C controller includes a floating ground circuit and a fault detection circuit coupled to a power converter. The floating ground circuit provides a floating ground voltage based on a supply voltage of the power converter. The fault detection circuit includes a comparator with power rails coupled to the supply voltage and the floating ground voltage. The fault detection circuit measures a differential signal across a first terminal and a second terminal, the differential signal representing a current of the power converter. The fault detection circuit compares the differential signal against a threshold using the comparator and outputs an indication of a fault condition in response to the differential signal satisfying the threshold.

Abstract: A Universal Serial Bus Type-C (USB-C) controller with a floating ground architecture for fault detection is described. A USB-C controller includes a floating ground circuit and a fault detection circuit coupled to a power converter. The floating ground circuit provides a floating ground voltage based on a supply voltage of the power converter. The fault detection circuit includes a comparator with power rails coupled to the supply voltage and the floating ground voltage. The fault detection circuit measures a differential signal across a first terminal and a second terminal, the differential signal representing a current of the power converter. The fault detection circuit compares the differential signal against a threshold using the comparator and outputs an indication of a fault condition in response to the differential signal satisfying the threshold.