EXTERNAL BATTERY AND DRIVING METHOD THEREOF

摘要

An external battery and a driving method thereof are disclosed. In one aspect, the external battery includes a battery, a charging unit, a detecting unit and a main controller unit (MCU). The charging unit generates a charging current using external power supplied from an external charger to an input stage, and provides the charging current to the battery or to an external device. The detecting unit detects whether the external charger and the external device are both coupled to the external battery. The MCU controls the charging current to be provided to the external device, when the external charger and the external device are both coupled to the external battery. Accordingly, when the external charger and the external device are both coupled to the external battery, the external device can be directly charged using the charging current applied from the external charger.

主权项

1. An external battery, comprising:
a battery; a charging circuit configured to i) receive external power from an external charger, ii) generate a charging current based at least in part on the received external power, and iii) provide the charging current to the battery or an external device; a detector configured to detect whether the external charger and the external device are both coupled to the external battery; and a main controller unit (MCU) configured to control the charging circuit to provide the charging current to the external device first when the external charger and the external device are both coupled to the external battery.