An electronic converter (1) comprises a pair of input terminals (IN+, IN−) particularly suitable to be connected to a power supply unit (10) with a constant electric current output, and a pair of output terminals (OUT+, OUT−) particularly suitable to be connected to an electrical load (5). The electronic converter (1) further comprises an electric current conversion stage (2) connected to said input terminals (IN+, IN−) and to said output terminals (OUT+, OUT−), and a controller (3) connected to the electric current conversion stage (2) and particularly suitable to control the electrical energy output from the electronic converter (1).