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:
Oct. 06, 2015
Filed:
Sep. 25, 2009
Eduardo Kazuhide Sato, Tokyo, JP;
Masahiro Kinoshita, Tokyo, JP;
Yushin Yamamoto, Tokyo, JP;
Tatsuaki Amboh, Tokyo, JP;
Eduardo Kazuhide Sato, Tokyo, JP;
Masahiro Kinoshita, Tokyo, JP;
Yushin Yamamoto, Tokyo, JP;
Tatsuaki Amboh, Tokyo, JP;
Abstract
In this uninterruptible power supply apparatus, even after electric power supply to a load stops due to prolonged power failure time, the operation of an inverter is continued, a DC power supply voltage is generated based on an output of the inverter, and a control circuit is driven by the DC power supply voltage. Therefore, when electric power supply from a commercial AC power supply is resumed during the stop of electric power supply to the load, electric power supply to the load is automatically resumed by the control circuit.