1. An electronic converter allowing power to be transferred from an alternating voltage source, connected between an input terminal and a common terminal, to a load connected between an output terminal and a reference terminal, an alternating voltage having a first frequency and comprising positive alternations alternating with negative alternations, said converter comprising:an input inductor having a first end connected to the input terminal so as to receive the alternating voltage;
an output inductor connected to the output terminal;
a storage capacitor arranged between the input inductor and the output inductor;
a chopper circuit configured:
in a first operating state, to charge the input inductor by means of the alternating voltage source, and to discharge the storage capacitor into the output inductor while powering the load;
in a second operating state, to discharge the input inductor into the storage capacitor, and to discharge the output inductor while powering the load;
the chopper circuit comprising a first bidirectional switch having a first end connected to a second end of the input inductor, and a second end connected to the common terminal, and
a control device for controlling the chopper circuit, configured to activate, during each of the positive and negative alternations, successive operating cycles at a second frequency higher than the first frequency, each operating cycle comprising the first operating state and of the second operating state, the first operating state having a duty cycle which varies so as to obtain a constant output voltage between the output terminal and the reference terminal during each of the positive and negative alternations.