EXTERNAL BATTERY

摘要

An external battery is disclosed. In one aspect, the external battery includes an input terminal configured to receive power from an external charger, a charge current generator configured to generate a charge current based on the received power and a bare cell configured to output a voltage corresponding to the charge current. The external battery also includes a direct current to direct current (DC-DC) converter configured to convert the output voltage of the bare cell into a voltage with a different value from that of the output voltage and output the converted voltage. The external battery further includes an output terminal configured to apply the converted voltage to an external device and a main controller unit (MCU) configured to determine whether the external device is properly connected to the output terminal based at least in part on the output voltage of the bare cell.

主权项

1. An external battery, comprising:
an input terminal configured to receive power from an external charger; a charge current generator configured to generate a charge current based on the received power; a bare cell configured to output a voltage corresponding to the charge current; a direct current to direct current (DC-DC) converter configured to i) convert the output voltage of the bare cell into a voltage with a different magnitude from that of the output voltage and ii) output the converted voltage; an output terminal configured to apply the converted voltage to an external device; and a main controller unit (MCU) configured to determine whether the external device is properly connected to the output terminal based at least in part on the output voltage of the bare cell.