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

Claim 10:
11. The device of claim 10, wherein in said first-battery direct charging mode, said switch control circuitry turns off said second and third switches and turns on said first switch, and said charging path delivers said input power to charge said first battery via said first switch,
wherein in said second-battery direct charging mode, said switch control circuitry turns off said first and third switches and turns on said second switch, and said charging path delivers said input power to charge said second battery via said second switch, and
wherein in said first-battery buck charging mode, said switch control circuitry turns off said first, second, and third switches, and said charger circuit converts said input power to regulated output power to charge said first battery via said second output terminal.