Patent ID: 11804722

Abstract:
The present disclosure provides a battery pack power supply system and a battery pack power supply method. The battery pack power supply system comprises: a first battery set and a second battery set; a switch control circuit connected with electronic switches, to control the first battery set and the second battery set to be connected in series or in parallel; and a main control chip connected with the first battery set, the second battery set, and the switch control circuit, respectively, to control the electronic switches to be open or closed to discharge the first battery set and the second battery set; a wake-up circuit connected with the main control chip, to wake up the entire battery pack power supply system; a USB circuit connected with the first battery set, the second battery set, and the main control chip, respectively, to output power for charging an external device under the control of the main control chip; and a self-locking circuit connected with the switch control circuit, to disable the electronic switches when the switch control circuit is prohibited.