| 摘要 |
A circuit arrangement for operating at least one high-pressure discharge lamp having four switches in a full bridge arrangement, a first and a second switch forming the first half-bridge arm, and a third and a fourth switch forming the second half-bridge arm, at least two terminals for coupling the high pressure discharge lamp between the midpoint of the half-bridge arms, at least one terminal for supplying the circuit arrangement with a DC voltage signal, and a drive circuit for driving the four switches, the drive circuit being designed to provide a first drive signal for the switches of the arm and a second drive signal for those of the second arm in such that the drive signals are derived from a base signal whose clock pulse is swept between a first and a second frequency.
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