| 摘要 |
A circuit arrangement for starting a discharge lamp, with a primary circuit, which comprises a series circuit comprising an inductance (L), a starting capacitor (C1) and a first switch (SG), the switch being in the form of a threshold value switch, and the inductance comprising the primary winding (L1) of the starting transformer (TR), and the primary circuit being designed to generate a starting pulse for the discharge lamp at the secondary winding (L2) of a starting transformer (TR), the primary circuit having two decoupled voltages, a first voltage, which is correlated substantially with the energy of the starting pulse, and a second voltage, which controls the operating time of the switch, the first voltage being lower than the threshold value of the first switch. Also disclosed is a method for starting a discharge lamp, with a primary circuit which generates a starting pulse for the discharge lamp at the secondary winding of a starting transformer, the primary circuit comprising a series circuit comprising an inductance, a starting capacitor and a first switch, which is in the form of a threshold value switch, characterized by the following steps: charging the starting capacitor to a first voltage, and applying a second voltage to the first switch in order to switch on said switch.
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