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:
Sep. 21, 2010
Filed:
Oct. 23, 2007
Yoshinobu Takayanagi, Tokyo, JP;
Kunihiro Sato, Tokyo, JP;
Yoshinobu Takayanagi, Tokyo, JP;
Kunihiro Sato, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A switching power supply unit is provided, which can output a DC voltage and an AC voltage with a minimized installation space. A switching circuit is provided between a winding of a transformer and a main battery. A rectifier circuit is provided between other windings of the transformer and an accessory battery. Output terminals for outputting an AC output voltage are provided at the other side of the transformer, the AC output voltage being generated based on a DC input voltage inputted from the main battery. A DC output voltage and the AC output voltage are generated based on the DC input voltage, and then outputted. The transformer is shared by a generation path of the DC output voltage and a generation path of the AC output voltage. An AC voltage input section to be inputted with the AC input voltage from external equipment may be provided at the other side of the transformer.