Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Klaus Fischer0
Josef Kreittmayr0
Date of Patent
February 12, 2008
0Patent Application Number
113764130
Date Filed
March 15, 2006
0Patent Primary Examiner
Patent abstract
A ballast having a dimming device for a low-pressure discharge lamp. It has two technically different possibilities for controlling the lamp brightness. The first possibility for controlling the lamp brightness is by means of adjusting the amplitude of the lamp current. The second possibility for brightness control is based on the fact that the low-pressure discharge lamp can be operated with a pulsed lamp current. In particular, both operating modes are used in combination in specific brightness ranges.
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