CHARGING CONTROL CIRCUIT OF MOBILE DEVICE

摘要

A charging control circuit (160) of a mobile device (104) includes an input switch (261) and a device-side control circuit (265). The input switch (261) is positioned on a power input path between a device-side connector (140) and a battery (150) of the mobile device (104). The device-side control circuit (265) is arranged to control the input switch (261) and capable of transmitting a data signal (DATA) to an adaptive power converter (110) of a mobile charger (102; 902) through a charging cable (130) based on sensing result in respect of the signal on the power input path (Vin; Iin; VB; IB), so that the adaptive power converter (110) adjusts the magnitude of resulting DC current signal (Idc) or DC voltage signal (Vdc) based on the data signal (DATA) to control a voltage drop of the charging cable (130) to be less than a predetermined threshold.