Patent ID: 11876458
Assignee: APPLE INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. An electrical system comprising:
an isolated bidirectional converter having an input couplable to an AC grid connection and an output couplable to a battery;
a non-isolated converter having an input coupled to the input of the isolated bidirectional converter and selectively couplable to the AC grid connection and an AC output coupled to a convenience outlet;
a switch that selectively couples the input of the isolated bidirectional converter and the input of the non-isolated converter to the AC grid connection; and
a controller configured to toggle the switch and control operation of the isolated bidirectional converter and the non-isolated converter to operate in one or more of a plurality of modes including:
a charging mode in which the isolated bidirectional converter operates in a forward direction to charge the battery and the non-isolated converter powers the convenience outlet from the grid connection; and
a non-charging mode in which the isolated bidirectional converter operates in a reverse direction to power the non-isolated converter from the battery and the non-isolated converter powers the convenience outlet, wherein the non-charging mode includes at least one of:
a first discharging mode in which the isolated bidirectional converter is operated in the reverse direction to produce a DC output voltage having a magnitude tracking the battery voltage;
a second discharging mode in which the isolated bidirectional converter is operated in the reverse direction to produce a DC output voltage having a magnitude suitable for the convenience outlet; and
a third discharging mode in which the isolated bidirectional converter is operated in the reverse direction to produce a DC output voltage having a magnitude corresponding to a voltage of the AC grid.