Patent ID: 7352079
Filing Date: 2008-04-01
Classification: H05B,Y02B

Abstract:
1. An electronic ballast for a lamp having a DC voltage connection ( a switching unit ( an AC voltage connection ( characterized in that a second nonreactive resistor (R 2 ) is coupled between the series circuit comprising the first nonreactive resistor (R 1 ) and the first diode (D 1 ), a connection point being defined between the first diode (D 1 ) and the second nonreactive resistor (R 2 ), and a second capacitor (C 2 ) being coupled between said connection point and the reference potential, and the first capacitor (C 1 ) and the second nonreactive resistor (R 2 ) being dimensioned such that the average voltage drop across the second nonreactive resistor (R 2 ) is greater than or equal to the average voltage drop across the first capacitor (C 1 ).