Abstract: The invention describes an adaptive circuit (1, 1?) for driving a lower-voltage DC load (2) from a rectified higher-voltage AC supply (3), which adaptive circuit (1, 1?) comprises a charge-storage circuit (21, 21?), which charge storage circuit (21, 21?) comprises a first capacitor (C1) and a second capacitor (C2) connected essentially in series, wherein the second capacitor (C2) is connected at least in parallel with the load (2); and an active switch (22, 22?) realized as a controlled current source (22, 22?) for controlling a load current (Iload) through the load (2) such that, in a closed switch state, load current (Iload) is drawn essentially from the first capacitor (C1) of the charge-storage circuit (21, 21?), and, during an open switch state, load current (Iload) is drawn essentially from the second capacitor (C2).

Abstract: The invention describes an adaptive circuit (1, 1?) for driving a lower-voltage DC load (2) from a rectified higher-voltage AC supply (3), which adaptive circuit (1, 1?) comprises a charge-storage circuit (21, 21?), which charge storage circuit (21, 21?) comprises a first capacitor (C1) and a second capacitor (C2) connected essentially in series, wherein the second capacitor (C2) is connected at least in parallel with the load (2); and an active switch (22, 22?) realised as a controlled current source (22, 22?) for controlling a load current (Iload) through the load (2) such that, in a closed switch state, load current (Iload) is drawn essentially from the first capacitor (C1) of the charge-storage circuit (21, 21?), and, during an open switch state, load current (Iload) is drawn essentially from the second capacitor (C2).