Patent ID: 7019466

Claim:
A circuit arrangement for driving a high-pressure discharge lamp ( 14 ) having a first input terminal ( 1 ) for a first voltage potential, the first voltage potential constituting a DC voltage before starting, and an AC voltage after starting; a second input terminal ( 2 ) for a second voltage potential; a third input terminal ( 4 ) for feeding a starting voltage; a first electrical connection, which provides at its first end a first output terminal ( 26 ) for the high-pressure discharge lamp ( 14 ), and which is coupled at its second end to the first input terminal ( 1 ) for the first voltage potential; a second electrical connection, which provides at its first end a second output terminal ( 28 ) for the high-pressure discharge lamp ( 14 ), and which is coupled at its second end to the second input terminal ( 2 ) for the second voltage potential; a first inductor ( 30 ) that is arranged in the second electrical connection; and a starting device ( 24 ) that is coupled on the input side at least to the third input terminal ( 4 ) for feeding a starting voltage, and that is coupled on the output side to one of the output terminals ( 26 ; 28 ) for the high-pressure discharge lamp; arranged in the first electrical connection is a second inductor ( 32 ), which forms a current-compensated choke ( 22 ) (common mode choke) together with the first inductor ( 30 ).