Patent ID: 11923723
Assignee: TOSHIBA MITSUBISHI—ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The uninterruptible power supply according to claim 3, wherein
the controller selects any power supply mode from the first power supply mode, the second power supply mode, the third power supply mode, the fourth power supply mode, the fifth power supply mode, a sixth power supply mode, and a seventh power supply mode,
when the sixth power supply mode is selected, the controller turns on the first switch and turns off the second switch, and controls the first power converter so as to convert the AC power supplied from the AC power source via the first switch into DC power and supply the DC power to the second power converter while storing the DC power in the power storage device, and controls the second power converter so as to convert the DC power supplied from the first power converter into AC power and supply the AC power to the load, and
when the seventh power supply mode is selected, the controller turns off the first switch, and controls the second power converter so as to convert the DC power of the power storage device into AC power and supply the AC power to the load.