POWER CONSUMPTION CONTROL METHOD FOR AN ELECTRONIC SYSTEM AND ELECTRONIC SYSTEM THEREOF

摘要

Power consumption control method for an electronic system determines whether an external device is plugged in one of the connection ports of the electronic system by detecting the variation of average power consumption of the electronic system. The one connection port with plugged external device is then turned on and provided with power, making the external device workable. The external device may further be charged after confirmation of connection to the connection port. Completion of charging and status of unplugging of the external device may further be acquired in the electronic system by also detecting the variation of average power consumption, which will subsequently turn off the charger circuit and the connection port for substantially saving power consumption and prolonging the battery time.