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:
Nov. 11, 2014
Filed:
Jun. 17, 2011
Shun Kazama, Osaka, JP;
Masaki Tagome, Osaka, JP;
Makoto Kitabatake, Nara, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A power converter for effectively reducing switching noise is provided. The power converter comprises a capacitor; switching devices Qand Qconnected to the capacitorin parallel; and a controllerthat controls each switching device individually to perform switching operations. Each of the switching devices Qand Qforms a closed circuit together with the capacitor. The controllercontrols the switching devices Qand Qto perform switching operations of switching ON or OFF at different timings such that at least two closed circuits including the switching devices Qand Qmutually cancel ringing voltages occurring therein, each ringing voltage occurring due to the switching operations performed by a corresponding switching device and having a frequency defined by an inductance of a corresponding closed circuit and an output capacity of a switching device included in the corresponding closed circuit.