Title:
POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/053883
Kind Code:
A1
Abstract:
This uninterruptible power supply device: obtains the present capacitor characteristics on the basis of deterioration information indicating the relationship among the characteristics (C, R) of a capacitor (23), the use condition (Tc, VDC) thereof, and the use time (TU) thereof, and on the basis of the detected values of the use conditions and the use time of the capacitor; obtains a target value (VDCT) of the inter-terminal voltage (VDC) of the capacitor on the basis of the characteristics, a load capacity (P), and a rated time (Tr); and charges the capacitor such that the inter-terminal voltage of the capacitor becomes equal to the target value.
Inventors:
NAKANO TOSHIHIDE (JP)
Application Number:
PCT/JP2017/033485
Publication Date:
March 21, 2019
Filing Date:
September 15, 2017
Export Citation:
Assignee:
TOSHIBA MITSUBISHI ELEC IND (JP)
International Classes:
H02J9/06
Foreign References:
| JP2009065751A | 2009-03-26 | |||
| JP2008029064A | 2008-02-07 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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