Method for at least partially removing oscillations occurring at the end of a current discharge for an h-bridge

A method for at least partially removing the oscillations occurring at the end of a current discharge through structural diodes for a switching structure supplying power to an inductive load (1, L1, R1) in the form of an H-bridge forming a high and low circuit, the switching structure comprising two controlled high (HS1, HS2) or low (LS1, LS2) power switches forming part of a high circuit or a low circuit, respectively, between a respective output (s1, s2) and a power source (Vps) or a ground (mas), the switching structure being adapted to control a current in the load by being connected to the electric power source (Vps) or to the ground (mas) in order to control the inductive load (1, L1, R1), at least two capacitors (C1, C2) being connected to bypass the inductive load (1, L1, R1) between the outputs (s1, s2), the switching structure having one of the outputs (s1, s2) below the ground (mas) potential and the other above the potential of the power source (Vps) during the current discharge through the structural diodes, with no high (HS1, HS2) or low (LS1, LS2) power switch then being on, a discharge current leaving one output (s1, s2) for the other (s2, s1), voltage oscillations occurring on the outputs (s1, s2) at the end of current discharge through the structural diodes, wherein a detection or anticipation of the end of discharge and a forced preservation of a freewheel after the detection of the end of discharge are carried out, the forced preservation of the freewheel after the detection of the end of discharge taking place for a predetermined preservation time.