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. 29, 2016
Filed:
Sep. 29, 2014
Tdk Corporation, Minato-ku, Tokyo, JP;
Masahito Shoyama, Fukuoka, JP;
Kewei Shi, Fukuoka, JP;
TDK Corporation, , JP;
Abstract
A bridgeless power factor improvement converter is configured with input terminals to which an AC voltage is input, output terminals from which a DC voltage is output, diodes, first and second switches, first and second coils, a pair of series diodes, and a control circuit. When one input terminal has a positive potential relative to the other input terminal, the control circuit performs a switching operation for only the first switch. When the one input terminal has a negative potential relative to the other input terminal, the control circuit performs the switching operation for only the second switch. A capacitor, which is provided independently from the pair of series diodes, is connected to at least one of the pair of series diodes in parallel.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile