CHARGER AND CONTROL METHOD THEREFOR

A charger includes a battery pack interface for connecting a battery pack to enable the charger to charge the battery pack; a communication module configured to communicate with the battery pack; a detection module configured to detect an actual current output by the charger; and a control module electrically connected to the communication module and the detection module. The control module is configured to acquire a current demand instruction from the battery pack through the communication module; acquire the actual current through the detection module; and adjust a control parameter according to the current demand instruction and the actual current, where the control parameter is used for controlling the actual current output by the charger. The technical solutions can reduce an operational amplifier and peripheral devices of the charger and ensure that the output current of the charger is stable and controllable, facilitating cost reduction.