Patent ID: 11862959
Assignee: CYPRESS SEMICONDUCTOR CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
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.