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. 16, 2003
Filed:
Aug. 22, 2001
Takahiro Urakabe, Tokyo, JP;
Hidehiko Kinoshita, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A gas-discharge lamp lighting apparatus includes: a power conditioning unit regulating power supplied from a power source, and outputting voltages with mutually different levels from two output terminals; a switching circuit unit coupled between the output terminals of the power conditioning unit and including at least one switching element; and a pulse transformer generating a high-voltage pulse, placed in a circuit connecting the output terminals of the switching circuit unit and a gas-discharge lamp. A first terminal of a primary winding of the pulse transformer is connected to a first output terminal of the power conditioning unit via a first output terminal of the switching circuit unit, and a second terminal of the primary winding is directly connected to a second output terminal of the power conditioning unit.