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

Claim 0:
1. An uninterruptible power system, comprising:
a DC-AC conversion circuit;
a plurality of switches, each switch having a first terminal, a second terminal and a control terminal, and the first terminals being electrically coupled to an output terminal of the DC-AC conversion circuit;
a plurality of sensing units, 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;
a plurality of output ports, each output port being electrically coupled to an output terminal of one of the sensing units; and
a control unit, electrically coupled to the DC-AC conversion circuit, the control terminals and the sensing units, the control unit being configured to define members of at least two groups from the output ports according to a system setting, and define which members of each group are non-critical output ports according to the system setting, the control unit being further configured to set, 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.