In the following disclosure, a component connected between two nodes or terminals means that the component has a first conduction terminal coupled, preferably connected, to the first of the two nodes or terminals and a second conduction terminal coupled, preferably connected, to a second of the two nodes or terminals.

In the following disclosure, unless indicated otherwise, when reference is made to absolute positional qualifiers, such as the terms “front,” “back,” “top,” “bottom,” “l(fā)eft,” “right,” etc., or to relative positional qualifiers, such as the terms “above,” “below,” “higher,” “l(fā)ower,” etc., or to qualifiers of orientation, such as “horizontal,” “vertical,” etc., reference is made to the orientation shown in the figures.

Unless specified otherwise, the expressions “around,” “approximately,” “substantially,” and “in the order of” signify within 10% and preferably within 5%.

FIG. 1 is a schematic view illustrating a USB connection between device 200, acting as a supply source (SOURCE), and an electronic device, or load, to be supplied 400, playing the role of a load (SINK). In this example, the devices 200 and 400 are connected by means of a cable C of the USB type C, preferably adapted to the USB-PD or USB “POWER DELIVERY” technology.

The supply device 200 comprises a source of an electrical supply power 201. The source 201 is the electrical distribution grid, i.e., the mains, which delivers an alternating voltage, or AC voltage. As an example, the AC voltage delivered by the mains has a nominal value, i.e. a nominal root means square value, equal to 230 V or 110 V.