Power supply arrangement comprising a DC/DC converter

A DC/DC converter (3) including

• a half bridge comprising a first (4, 21) and a second (5, 20) switch element and when the converter (3) is in operation is connected between a first and a second DC voltage potential,
• a transformer (7, 23) whose primary winding together with a capacitive element (6, 22) is included in a circuit branch connected in parallel to the first switch element (4, 21), the capacitive element in the circuit branch being connected in series to the primary winding and
• a primary-side control loop for controlling the voltage (V0) on the primary winding of the transformer (7, 23) by adapting control signals (a1, a2, b1, b2) for the switch elements.

A power supply arrangement comprising a DC/DC converter (3) including

• a half bridge comprising a first (4) and a second (5) switch element and when the power supply arrangement is in operation is connected between a supply potential (+) and a reference potential (−),
• a transformer (7) whose primary winding together with a capacitive element (6) is included in a circuit branch connected in parallel to the first switch element (4), the capacitive element in the circuit branch being connected in series to the primary winding and in which a terminal of the capacitive element (6) is connected to the supply potential (+) and a terminal of the second switch element (5) is connected to the reference potential (−) and in which the winding direction of the primary and secondary winding of the transformer is selected so that the energy flow from the primary side to the secondary side of the transformer (7) takes place when a current flows through the second switch element (5).

A DC/DC converter comprising

• a half bridge comprising a first (4) and a second (5) switch element and when the power supply arrangement is in operation is connected between a supply potential (+) and a reference potential (−),
• a transformer (7) whose primary winding together with a capacitive element (6) is included in a circuit branch connected in parallel to the first switch element (4), the capacitive element in the circuit branch being connected in series to the primary winding and in which a terminal of the capacitive element (6) is connected to the supply potential (+) and a terminal of the second switch element (5) is connected to the reference potential (−) and in which the winding direction of the primary and secondary windings of the transformer is selected so that an energy flow from the primary side to the secondary side of the transformer (7) takes place, in essence, when a current flows through the second switch element (5).