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:
Feb. 04, 1997
Filed:
Sep. 08, 1995
Applicant:
Inventor:
Siegfried Luger, Dornbirn, AT;
Assignee:
Tridonic Bauelemente GmbH, Dornbirn, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
315307 ; 315291 ; 3152 / ; 315D / ; 315D / ;
Abstract
A control system for gas discharge lamps (5) includes a fuzzy controller (7) which, for controlling the lamp current of the gas discharge lamp, generates a setting value for an inverter (3), for setting the frequency or duty ratio of the lamp current, in dependence upon an actual value of the lamp current. Further, in accordance with the invention, fuzzy logic is employed for the purpose of recognition of the lamp type of a connected gas discharge lamp (5), in that on the basis of various detected operational parameter values, during the operation of the gas discharge lamp, the lamp type of the gas discharge lamp is determined.