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. 01, 2003
Filed:
Jan. 09, 2002
Hideki Ueda, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A DC/DC converter for an electronic equipment, e.g., a self-luminous display apparatus, includes a plurality of choke coils connected in parallel to each other to a DC power supply, a control circuit for controlling the ON/OFF operation of a switching element to control an output voltage of the DC/DC converter, and a changeover switch for selectively changing over the choke coils such that only one of the choke coils which has an inductance value corresponding to the output current of the DC/DC converter is effectively connected to the rectifying diode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile