| 摘要 |
A power saving system is provided, comprising a system chip, at least one controller and at least one corresponding switch. The system chip is coupled to the controller. The controller is coupled between the system chip and a connector. The switch is coupled between the controller and a power and is turned on or off according to a GPIO signal. When the switch is turned on, the controller is active. When there is no device through the connector and the controller coupled to the system chip, the controller is turned off for power saving.
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