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:
May. 14, 1996
Filed:
Apr. 02, 1992
Applicant:
Inventor:
Anton C Blom, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
315289 ; 315307 ;
Abstract
A circuit arrangement (II) for igniting a high-pressure discharge lamp provided with a pulse transformer, a switching device and a capacitive element for a periodic charge inversion via the transformer and the switching device. The circuit arrangement is also provided with a peak current limiting impedance to protect the switching device. A voltage limiting device is added to the transformer. By the provision of the voltage limiting device, the lamp ignition is to a high degree made to be independent of lamp connection line impedances.