CPC H02H 3/06 (2013.01) [H02H 3/08 (2013.01)] | 20 Claims |
1. A method for a Universal Serial Bus Type-C Power Delivery (USB-C/PD) system, the method comprising:
determining whether a short circuit condition has occurred based on a first threshold voltage;
in response to determining that the short circuit condition has occurred, turning off a ground isolation switch;
determining whether a voltage on a ground line is less than a second threshold voltage based on an output of a comparison circuit, wherein a second resistor is coupled to a gate node of the ground isolation switch via a first switch to allow a current to flow through the second resistor, and wherein the gate node is coupled to an input of the comparison circuit; and
in response to determining that the voltage on the ground line is less than the second threshold voltage, turning on the ground isolation switch.
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