Patent ID: 11967859
Assignee: EATON INTELLIGENT POWER LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 3:
4. The on-line uninterruptible power supply according to claim 3, wherein each of the plurality of bi-directional DC-DC converters comprises:
a bi-directional DC-DC conversion circuit having a first connection end and a second connection end;
a sixth fuse and a seventh fuse respectively connected to a positive terminal and a negative terminal of the first connection end of the bi-directional DC-DC conversion circuit and a sixth switch and a seventh switch respectively connected in series with the sixth fuse and the seventh fuse; and
an eighth switch and a ninth switch respectively connected to a positive terminal and a negative terminal of the second connection end of the bi-directional DC-DC conversion circuit.