Patent ID: 7394207

Claim:
A circuit arrangement for operating lamps having the following features: a first full-bridge branch which comprises the series circuit comprising a first and a third electronic switch (S 1 , S 3 ) which are connected at a first center point (N 1 ), a second full-bridge branch which comprises the series circuit comprising a second and a fourth electronic switch (S 2 , S 4 ) which are connected at a second center point (N 2 ), the first and the second full-bridge branches are each connected with one connection to a positive node (N 3 ) and with the other connection to a negative node (N 4 ), a storage capacitor (C 6 ) is connected between the positive node (N 3 ) and the negative node (N 4 ), and the first and the second center points (N 1 , N 2 ) are connected via a first inductor (L 1 ), characterized in that at least one second inductor (L 2 ) is connected in the second full-bridge branch in series with the second and fourth electronic switches (S 2 , S 4 ), the series circuit comprising a first and a second capacitor (C 1 , C 2 ), which are connected at a fifth node (N 5 ), is connected in parallel with the series circuit comprising the second and fourth electronic switches (S 2 , S 4 ), and a load circuit, to which lamps (Lp) can be coupled, is connected between the fifth node (N 5 ) and the first center point (N 1 ).