Device and method of ensuring power delivery in universal serial bus interface
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United States of America Patent
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Jun 11, 2024
Grant Date -
Aug 18, 2022
app pub date -
May 9, 2022
filing date -
Aug 20, 2018
priority date (Note) -
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Abstract
A method of ensuring power delivery in a universal serial bus (USB) interface between a device and a counterpart device, the device including a port controller and a USB receptacle. The method includes the port controller attempting to detect an abnormal state in which a leakage current occurs in the USB receptacle using at least one pin of the USB receptacle; and when the abnormal state is detected, the port controller turning OFF a switch connected between a power pin of the USB receptacle and an internal circuit of the device, and determining to enter an unattached state of being separated from the counterpart device.
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