Linear-charging circuit and intelligent charging method thereof

The present invention provides an efficient method of linear charging circuit, characterized in that the method is as follows: linear charging circuit detecting voltage Va input terminal and the output terminal voltage Vb, and fed back to the power management unit; information T and the detected temperature is fed back to the power management unit ; information (Va, Vb, T) of the power management unit detecting circuit according to the real-time feedback, charge current Ic. Meanwhile, the application proposes a specific circuit configuration of a charging method, including linear charging circuit, the power management unit, a first detection circuit, second detection circuit, the third detection circuit and a temperature detection circuit, real-time detection of the charging current is adjusted according to the dynamic parameters, so that the charging circuit always withstand the maximum charging current can effectively shorten the charging time.