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:
Jan. 16, 2007
Filed:
Oct. 11, 2002
Winston Donald Couwenberg, Eindhoven, NL;
Wilhelmus Hinderikus Maria Langeslag, Nijmegen, NL;
Ludovicus Franciscus Johanes Oostvogels, Eindhoven, NL;
Johannis Antonie Amerens Toonen, Eindhoven, NL;
Winston Donald Couwenberg, Eindhoven, NL;
Wilhelmus Hinderikus Maria Langeslag, Nijmegen, NL;
Ludovicus Franciscus Johanes Oostvogels, Eindhoven, NL;
Johannis Antonie Amerens Toonen, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A method for driving a gas discharge lamp () is described, wherein electric first DC power is provided at a relatively high voltage and a relatively low current. Said first power is converted down to second DC power at a relatively low voltage and a relatively high current. Said second power is fed to a gas discharge lamp, preferably via a commutator. The conversion of said first power to said second power is performed in at least two steps, a first one of such steps including the step of converting down said first power to an intermediate DC power at an intermediate DC voltage lower (VM) than said first DC voltage but higher than said second DC voltage. A downconverter device () for use in a driving apparatus () for a gas discharge lamp () is described. The downconverter device comprises at least two downconverter units () connected in series, for converting down said intermediate DC power to said second power.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile