Patent ID: 11870296
Assignee: CYBER POWER SYSTEMS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. An operation method of an uninterruptible power system, the uninterruptible power system comprising a DC-AC conversion circuit, a plurality of switches, a plurality of sensing units and a plurality of output ports, each switch having a first terminal, a second terminal and a control terminal, the first terminals being electrically coupled to an output terminal of the DC-AC conversion circuit, an input terminal of each sensing unit being electrically coupled to one of the second terminals for sensing at least one of voltage and current, each output port being electrically coupled to an output terminal of one of the sensing units, the operation method comprising the following steps:
defining members of at least two groups from the output ports according to a system setting;
defining which members of each group are non-critical output ports according to the system setting; and
setting, according to the system setting, a plurality of conditions for all non-critical output ports in each group to simultaneously stop supplying power, and to accordingly control the operations of the corresponding switches,
wherein at least one of the conditions is different between different said groups, and
wherein whether power is supplied to the non-critical output ports of one said group depends on the conditions set for the one said group and not on the conditions set for another said group.