UNINTERRUPTIBLE POWER-SUPPLY SYSTEM

Title:

UNINTERRUPTIBLE POWER-SUPPLY SYSTEM

Document Type and Number:

WIPO Patent Application WO/2015/198687

Kind Code:

A1

Abstract:

　This uninterruptible power supply system (10) is provided with: an input/output terminal (11) parallel-connected to a power line (21) that supplies power to a load device (30) from an external power supply (20); a battery unit (12) having a rated voltage that is the same voltage as the voltage (V1) of the external power supply (20); a DC/DC converter (13) for converting the voltage (V1) of the external power supply (20) to a voltage (V3) equivalent to the difference of the rated voltage of the battery unit (12) and the charging voltage of the battery unit (12); a charging circuit (14) for charging the battery unit (12) at a voltage equal to the voltage (V1) of the external power supply (20) plus the output voltage (V3) of the DC/DC converter (13); and a discharge circuit (15) that, in the event that the external power supply (20) is interrupted, discharges power to the load device (30) from the battery unit (12) through the input/output terminal (11).

Inventors:

HARADA TAKUYA (JP)
KABASAWA TAKASHI (JP)
SAKAMOTO JINICHI (JP)

Application Number:

PCT/JP2015/061245

Publication Date:

December 30, 2015

Filing Date:

April 10, 2015

Export Citation:

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Assignee:

FDK CORP (JP)

International Classes:

H02J9/06; H02J7/34

Foreign References:

JP2007306662A	2007-11-22
JP2002199620A	2002-07-12
JP2005304142A	2005-10-27

Other References: