Title:
無停電電源装置
Document Type and Number:
Japanese Patent JP6955635
Kind Code:
B2
Abstract:
In an uninterruptible power supply apparatus, in a power failure of a commercial AC power supply, a switch is turned off to electrically cut off the commercial AC power supply from an AC input filter, and a DC voltage converter is controlled such that a DC voltage that is the difference between terminal-to-terminal voltages of first and second capacitors is eliminated, and when the DC voltage exceeds a threshold voltage, a converter is controlled to reduce the DC voltage.
Inventors:
Yousuke Hayashi
Toshihide Nakano
Toshihide Nakano
Application Number:
JP2020534012A
Publication Date:
October 27, 2021
Filing Date:
August 03, 2018
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
H02J9/06; H02M5/458
Domestic Patent References:
| JP2014147251A |
Foreign References:
| EP3309927A1 | ||||
| WO2005101634A1 | ||||
| WO2010021052A1 | ||||
| WO2015185630A1 |
Attorney, Agent or Firm:
Fukami patent office