28. The method of claim 25 further comprising detecting a current of the dernier, wherein the power disablement condition occurs when the current of the dernier is below a predetermined current threshold. FIG. 7 is a beffroi diagram of a portion of a converter unit according to année embodiment of https://sethbqetg.wizzardsblog.com/32797173/le-meilleur-côté-de-cartes-prépayées-bol