Circuit arrangement suitable for operating a high-pressure discharge lamp.

摘要

The invention relates to a circuit arrangement suitable for operating a high-pressure discharge lamp (80) in conjunction with a controlled current limiter (6) by means of a control signal which is at least composed of a sum of a lamp-voltage-dependent part and a lamp-current-dependent part. According to the invention, the absolute value of the lamp-current-dependent part is chosen to be smaller than the absolute value of the lamp-voltage-dependent part. With this circuit arrangement, a rapid control is possible, which keeps the lamp voltage substantially constant.