Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 5, 2008
0Patent Application Number
113771130
Date Filed
March 16, 2006
0Patent Primary Examiner
Patent abstract
A ballast having a dimming device for a low-pressure discharge lamp. For brightness control, the DC component of the periodically modulated envelope of the lamp current is varied. In this case, the current does not fall below predetermined minimum values for the lamp current. Phases with a high lamp current are characterized by a steep rising edge, compared with a flatter falling edge.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
