CHARGING CIRCUIT AND ELECTRONIC DEVICE HAVING THE SAME

摘要

A charging circuit for charging a battery of an electronic device includes a first switch having one side connected to an interface into which external power is input, a second switch having one side connected to the other side of the first switch, a third switch having one side connected to the other side of the second switch, a fourth switch having one side connected to the other side of the third switch, a flying capacitor located between the other side of the first switch and the other side of the third switch, an inductor having one side connected to the other side of the second switch, and a control circuit for controlling a charging function of the battery by controlling on/off of the first switch, the second switch, the third switch and the fourth switch.

主权项

1. A charging circuit for charging a battery of an electronic device, the charging circuit comprising:
a first switching element having one side connected to an interface into which external power is input; a second switching element having one side connected to anther side of the first switching element; a third switching element having one side connected to another side of the second switching element; a fourth switching element having one side connected to another side of the third switching element; a flying capacitor located between the other side of the first switching element and the other side of the third switching element; an inductor having one side connected to the other side of the second switching element; and a control circuit configured to control a charging function of the battery by controlling on/off of the first switching element, the second switching element, the third switching element and the fourth switching element.