| 摘要 |
The present invention relates to an electronic ballast for a lamp ( 16 ) having an input circuit ( 10 ) having a connection to a voltage supply, an output circuit ( 14 ) having a connection for the lamp ( 16 ), and a voltage converter apparatus ( 12 ), which is arranged between the input and the output circuit ( 10, 14 ), the voltage converter apparatus comprising an input capacitor (C 1 ) and an output capacitor (C 2 ), between which a switching apparatus (T 1 ) and a freewheeling diode (D 1 ) as well as at least one damping element (L 2 ), at least one trapezoidal capacitor (C 3 ) and an inductance (L 1 ) are arranged, the voltage converter apparatus ( 12 ) being designed to carry out commutation, in each case a main circuit being defined by the current flow prior to and following commutation, at least one damping element (L 2 ) and at least one trapezoidal capacitor (L 2 ) being connected in series, and such a series circuit being arranged in a secondary circuit.
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