Patent ID: 9018927
Filing Date: 2015-04-28
Classification: G05F,G06F

Abstract:
1. A portable electronic apparatus, comprising: a power manager configured to couple a power adapter to receive a supply power generated by the power adapter, the power manager determining whether to generate a detecting signal or not by detecting whether a voltage value variation of the supply power is greater than a preset range or not, and the power manager generating a current detecting value according to an input current provided by the supply power; and a controller coupled to the power manager, receiving the detecting signal and the current detecting value, and generating an input current limit value according to a receiving status of the detecting signal and the current detecting value, wherein, the input current limit value is configured to be supplied to the power manager, and the power manager controls the input current according to the input current limit value, wherein the controller determines that an overload phenomenon has occurred on the power adapter when the controller determines that a number of times for not receiving the detecting signal within a time interval is greater than a preset threshold value, and the controller determines that a coupling status between the power adapter and the portable electronic apparatus is released when the controller determines that the detecting signal is continuously not received within the time interval.