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:
Jun. 20, 2006
Filed:
Feb. 26, 2003
Peter Lürkens, Aachen, DE;
Holger Mönch, Vaals, NL;
Peter Lürkens, Aachen, DE;
Holger Mönch, Vaals, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to an electronic circuit and a method of supplying energy to a high-pressure gas-discharge lamp H,. The electronic circuit comprises a line-supply input sectionto receive and convert an a.c. voltage from an a.c. line-supply system, an energy storage meansto store the energy put out by the line-supply input sectionand a lamp-current regulating unitthat is supplied with an input voltage Uby the line-supply input sectionvia the energy storage meansand that makes available a lamp current Ifor a high-pressure gas-discharge lamp II,. To make it possible for the energy storage meansto be particularly small, it is proposed that the lamp-current regulating unithave a power section L, D, C, S, A, A, K having a transconductive property. If there is a drop in the input voltage U, this property then automatically produces a reduction in the lamp current Imade available to a high-pressure gas-discharge lamp, H. This ensures a particularly fast adjustment to voltage fluctuations. The invention also relates to a corresponding method.