Patent ID: 11955898
Assignee: DELTA ELECTRONICS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 2:
3. The charging and discharging device according to claim 1, wherein the first port is electrically connected to a first charging and discharging unit, the second port is electrically connected to a second charging and discharging unit, the third port is electrically connected to a third charging and discharging unit, and when the charging and discharging device is in one of a plurality of working modes where the first charging and discharging unit charges the second charging and discharging unit, where the first charging and discharging unit charges the second charging and discharging unit and the third charging and discharging unit simultaneously, where the second charging and discharging unit is discharged to the first charging and discharging unit, and where the second charging and discharging unit is discharged to the first charging and discharging unit while charging the third charging and discharging unit, the first controllable switch is on.