Snubber circuit for DC-DC converter

The invention relates to a DC-DC converter (1), having a transformer (2) having a primary side winding (2a) and a secondary winding (2b, 2c) with a center tap, an output inductor (3), which (to the center and a first output terminal 9a is connected), a synchronous rectifier circuit (4) with two synchronous rectifier switches (14a, 14b) which (in each case with the end taps of the secondary side winding 2b, 2c) are connected, and which arranged to produce a rectified output voltage at a second output terminal (9b) are, and on the synchronous rectifier circuit (4) connected snubber circuit (5). The snubber circuit in this case has two diodes (16a, 16b) each with the end taps of the secondary side winding (2b, 2c) are coupled to a capacitor (6) connected to the two diodes (16a, 16b) is coupled, and which is adapted to store occurring in the synchronous rectifier circuit (4) resonant vibrational energy, and a discharge circuit (7) consists of a series circuit of a discharge switch (18) and a resistor (17), wherein the discharge circuit (7) (between the first output terminal 9a ) and the capacitor (6) is coupled and is adapted to charge stored in the capacitor (6) selectively to the first output terminal (9a) to feed back.