| 摘要 |
A power supply system includes a battery pack and an electronic device. The battery pack includes a battery, a voltage conversion circuit, and a first power port. The electronic device includes a second power port. When the battery pack is connected to the electronic device via the first power port and the second power port, the connection between the battery and the voltage conversion circuit is established, the voltage conversion circuit converts a voltage of the battery to a predetermined voltage and power the electronic device via the first power port and the second power port; when the battery pack does not connect to the electronic device, the connection between the battery and the voltage conversion circuit is cut off. |
