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:
Apr. 10, 2018
Filed:
Jun. 23, 2016
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Kiyoshi Ogasawara, Osaka, JP;
Takafumi Fujino, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H02M 7/217 (2006.01); H02M 1/42 (2007.01);
U.S. Cl.
CPC ...
H05B 33/0815 (2013.01); H02M 1/4225 (2013.01); H05B 33/0809 (2013.01); H05B 33/0851 (2013.01); Y02B 70/126 (2013.01);
Abstract
The power supply device includes a converter including a pair of input terminals, a pair of output terminals, a transformer, a capacitor, and a switching device, and a controller for controlling the switching device. The capacitor is electrically connected between the pair of input terminals. The converter further includes a reverse flow preventer for preventing a current from flowing through a closed circuit including the capacitor, a primary winding of the transformer, and the switching device, in an opposite direction to a direction of a discharging current from the capacitor.