The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2013
Filed:
Nov. 05, 2009
Yasumasa Murai, Tokyo, JP;
Yasumasa Murai, Tokyo, JP;
Fuji Electric Co., Ltd, , JP;
Abstract
An uninterruptible power supply is able to switch an operation mode between an on-line operation method and an off-line operation method for a wider range of commercial power supplies. An uninterruptible power supplyincludes; a rectifierfor converting AC power supplied from a commercial power sourceinto DC power; a storage batteryfor storing the DC power converted; an inverterfor converting the DC power into AC power; a selecting means (to) for selecting one of an off-line operation mode and an on-line operation mode according to a detection result of detecting a condition of the AC power supplied from the power source; in the off-line operation mode, AC power supplied from the power sourceis supplied to a load deviceunder normal operating condition, and when any failure happens in relation to the AC power supplied from the power source, the uninterruptible power supply supplies a power output generated by the inverterto the load device; in the on-line operation method, a power output from the inverteris supplied to the load deviceall the time including a period of normal operating condition; and a setup means () for variably setting criterion values, with which the selecting means (to) selects an operation mode depending on the condition of the AC power supplied from the power source
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile