Automatic switch method and apparatus for a USB

Details Automatic switch method and apparatus for a USB Automatic switch method and apparatus for a USB

2006-04-11

2010-11-23

Lee, Thomas (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Reexamination Certificate

active

07840819

ABSTRACT:
An automatic switch method and apparatus are used to set the output current of a USB by slowly increasing the output current under monitoring the voltage on the USB. If the USB could normally operate until the output current reaches a threshold value, a higher level is set for the output current, otherwise a lower level is set instead. The process may be performed periodically to dynamically determine the output current for the USB.

REFERENCES:
patent: 2003/0095368 (2003-05-01), Daniels et al.

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