| 摘要 |
The present invention relates to a USB power managing system and a method thereof, the USB power managing system comprises an USB peripheral device and an USB interface, wherein the USB interface includes: a micro controlling unit; a data switch coupled to the micro controlling unit; an USB connecting unit coupled to the data switch; and a power switch coupled to the micro controlling unit and the USB connecting unit; wherein when the USB peripheral device is coupled to the USB connecting unit, the micro controlling unit switches the power switch for providing a power the USB peripheral device through the USB connecting unit; moreover when the USB peripheral device enters a standby mode, the micro controlling unit turns off the power switch for stopping providing the power to the USB peripheral device.
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