Patent ID: 11955821
Assignee: O2MICRO INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 13:
14. The device of claim 13, further comprising:
a fourth switch, coupled between said positive terminal of said second battery and said load, and configured to control a connection between said positive terminal of said second battery and said load; and
a connection switch, coupled between said positive terminal of said first battery and said load, and configured to control a connection between said positive terminal of said first battery and said load,
wherein said plurality of modes further comprises a second-battery discharging mode, and wherein in said second-battery discharging mode, said switch control circuitry turns off said connection switch and said first and third switches and turns on said second and fourth switches, and said second battery discharges to power said load via said fourth switch.