Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Felix I. Alexandrov0
Date of Patent
January 25, 2011
0Patent Application Number
121365620
Date Filed
June 10, 2008
0Patent Primary Examiner
Patent abstract
The electronic ballast comprises a series half bridge resonant inverter and a control circuit for the inverter with dimming capability. The inverter includes a first and a second voltage feedback circuits including first and a second charge pumps coupled in between inverter output and the dimming input of the control circuit. The feedback circuits generate a reference control signal to control operation after starting and an error control signals when the inverter output voltage exceeds a predetermined value.
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