Charging Current Setting Method and Charging Module

摘要

A charging current setting method for a charging module includes detecting at least one voltage value of an input voltage signal in an input terminal of the charging module to calculate an input resistance; setting a lower limit voltage value according to the input resistance; controlling an input current to increase, so that the input voltage signal decreases in accordance with the increasing input current; controlling the input voltage signal to remain on the lower limit voltage value when the input voltage signal decreases to the lower limit voltage value, and recording a magnitude of the input current as an upper limit current value after the input current becomes stable; and determining a charging current value of the charging module according to the upper limit current value.

主权项

1. A charging current setting method for a charging module, comprising:
detecting at least one voltage value of an input voltage signal in an input terminal of the charging module to calculate an input resistance; setting a lower limit voltage value according to the input resistance; controlling an input current to increase, so that the input voltage signal decreases in accordance with the increasing input current; controlling the input voltage signal to remain on the lower limit voltage value when the input voltage signal decreases to the lower limit voltage value, and recording a magnitude of the input current as an upper limit current value after the input current becomes stable; and determining a charging current value of the charging module according to the upper limit current value.