An inductive power transmission system, comprising at least one primary coil (Sp 1) and at least one secondary coil (Sp 2), which are or can be magnetically coupled to each other and which form respective primary-side and secondary-side resonant circuits (Re pri, Re sek) together with at least one capacitance (C 1, C 2), wherein a primary-side inverter produces a clocked voltage (U w), in particular a clocked square-wave voltage, from a unipolar primary voltage (|U N |) or a direct voltage (U G) and feeds said clocked voltage to the primary-side resonant circuit (Re pri), characterised in that the primary-side inverter is clocked or adjusted in such a way or the clocking of the voltage, in particular square-wave voltage, produced by the primary-side inverter is selected or adjusted in such a way that in the case of magnetic coupling of the primary coil (Sp 1) and the secondary coil (Sp 2) a secondary alternating voltage (U i) having a carrier frequency (f T) and induced in the secondary-side resonant circuit (Re sek) results, wherein the amplitude of the secondary alternating voltage (U i) oscillates at a network frequency (f 0), and an apparatus is connected downstream of the secondary-side resonant circuit (Re sek), which apparatus produces a bipolar secondary-side output voltage (U A) from the voltage (U i) present at the output of the secondary-side resonant circuit (Re sek), wherein the frequency (f A) of the secondary-side output voltage (U A) is equal to the network frequency (f 0), and characterized in that the apparatus has in particular four power semiconductors (L 1, L 2, L 3, L 4) which form two groups (Gr 1; Gr 2) of in particular equally many power semiconductors, and the power semiconductors of a group (Gr 1; Gr 2) are switched jointly by means of a group control signal (G 1; G 2), wherein the groups (Gr 1, Gr 2) are switched to an active state in alternation by means of the group control signals (G 1; G 2), wherein the apparatus has four reverse conducting semiconductors (L 1 - L 4) which form two groups (Gr 1; Gr 2) of two power semiconductors each (L 1, L 2; L 3, L 4), wherein the power semiconductors (L 1, L 2; L 3, L 4) of each group (Gr 1; Gr 2) are connected in series and are switched to an active state by means of the same group control signals (G 1; G 2), wherein the anode of one and the cathode of the other semiconductor (L 1, L 2) of the one first group (Gr 1) are electrically connected with each other at a first connection point (V 1) and the anode of one and the cathode of the other semiconductor (L 3, L 4) of the other second group (Gr 2) are electrically connected with each other at a second connection point (V 2), and the connection points (V 1, V 2), form the attachment points for the secondary-side resonant circuit (Re sek), and where in the power semiconductor itself no free-wheeling diode is implemented each power semiconductor (L 1, L 2; L 3, L 4) has a free-wheeling diode (D F) connected in parallel in each case, and the two groups (Gr 1, Gr 2) with the free anodes of their one power semiconductor (L 2, L 4) are connected with each other in series in point (P 1), and thus in series, and parallel to the series connection of the two groups (Gr 1, Gr 2) at least one capacitor (C A) is connected in parallel and the output voltage (U A) is applied to the capacitor (C A).