The invention relates to an apparatus for charging a remote feedable circuit bioelectronic implanted in a patient or in a laboratory animal, said apparatus comprising a composable container (10) configured to define a closed environment suitable to receive a patient or a laboratory animal, said container (10) comprising a plurality of composable walls made of a nonmagnetic material and connected to each other so as to define said closed environment, said container (10) comprising at least one first winding (20, 21, 22) whose axis is arranged in a first direction (Z) and at least one second winding (30, 31, 32, 33) whose axis is arranged in a second direction (Y) perpendicular to said first direction (Z). The apparatus further comprises a system (40) for powering and driving the windings of the composable container (10), said system comprising a switching power driver (61, 62, 63, 64, 65, 66, 67) for each winding (20, 21, 22, 30, 31, 32, 33), a plurality of phase locked loop circuits (71, 72, 73, 74, 75, 76, 77) respectively connected to each switching power driver (61, 62, 63, 64, 65, 66, 67) and connected to a programmable logic circuit (80) of the powering and driving system (40), said programmable logic circuit (80) being configured to perform a phase comparison, the programmable logic circuit (80) being in turn connected to a microprocessor (50) of the powering and driving system (40), said microprocessor being configured to provide driving signals to the windings (20, 21, 22, 30, 31, 32, 33) for generating inside the container (10) a rotating magnetic field.L'invention concerne un appareil destiné à charger un circuit bioélectronique susceptible d'être alimenté à distance, implanté chez un patient ou chez un animal de laboratoire, ledit appareil comportant une enceinte composable (10) configurée pour définir un environnement fermé convenant pour recevoir un patient ou un animal de laboratoire, ladite enceinte (10) comportant une pluralité de parois composables
