| 摘要 |
A circuit arrangement for operating a low-pressure mercury discharge lamp by a high-frequency current which includes a DC component and a high-frequency AC component. The circuit arrangement has a switching device for generating the high-frequency AC component from a supply voltage, an asymmetry device for rendering a first amplitude of the high-frequency AC component in a first polarization direction and a second amplitude of the high-frequency AC component in a second polarization direction unequal to one another, and a DC device for generating the DC component. The polarity of the DC component coincides with the polarization direction of the greater of the two amplitudes. Thus, striations in a low-pressure mercury discharge lamp operated on the circuit arrangement can be rendered invisible over a wide range of powers consumed by the lamp.
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