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:
Apr. 27, 2004
Applicant:
Jörg Lott, Chieming, DE;
Inventor:
Jörg Lott, Chieming, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method for operating at least one low-pressure discharge lamp using an inverter, during the operation of the at least one low-pressure discharge lamp the occurrence of a rectifier effect in the at least one low-pressure discharge lamp being monitored in order to determine the end of its life. For the purpose of monitoring the rectifier effect of the at least one low-pressure discharge lamp, the DC voltage drop across the electrical connections of the at least one low-pressure discharge lamp and the current through the at least one low-pressure discharge lamp are evaluated.