Patent ID: 11916425
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method of charging a battery of an electronic device, the method comprising:
performing charging in a first mode in which first charging current reflecting a consumption load current user by the electronic device remains the same during a first interval of a plurality of intervals when a consumption load current of the electronic device is low, and in which the first charging current does not remain the same during the first interval when the consumption load current of the electronic device is high;
identifying whether a state of charge (SoC) of the battery reaches a first charging state value;
switching from the first mode to a second mode when a voltage of the battery reaches a first target voltage of the first interval;
obtaining a first value that is a charging current presently flowing into the battery and a second value of an average value of the charging current flowing into the battery during the first interval;
performing charging in the second mode in which a first target voltage is maintained at the first target voltage while gradually changing the first charging current to a second charging current; and
switching from the first interval to a subsequent second interval of the plurality of intervals when a current flowing into the battery reaches a target current of the first interval,
wherein the switch from the first mode to the second mode comprises:
repeatedly identifying a first value of a charging current presently flowing into the battery and a second value of an average of the charging current flowing into the battery during the first interval, and an average value of the consumption load current during the first interval;
determining a greater value from among the first value and the second value;
based on the greater value exceeding a first reference current of the first interval, initializing an effective count to zero, wherein the first reference current is different from the charging current flowing into the battery that is remains the same while charging the battery in the first mode;
based on a sum of the greater value and an average value of the consumption load current during the first interval being less than or equal to the first reference current, increasing the effective count by one; and
based on the effective count exceeding a specified number of a plurality of times, switching from the first mode to the second mode;

wherein the subsequent second interval of the plurality of intervals includes a corresponding first mode in which the charging current flowing into the battery remains the same and a corresponding second mode in which the voltage of the battery remains the same, and
wherein the first mode is a constant current charging mode and the second mode is a constant voltage charging mode.