Device and method of ensuring power delivery in universal serial bus interface

Device and method of ensuring power delivery in universal serial bus interface

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 th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Kim, Je-Kook
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
CURRENT COLLECTORS
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
LINE CONNECTORS
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Beschreibung
Zusammenfassung: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.