Lighting Device and Automotive Light Comprising Said Lighting Device

A vehicle lighting device (4) comprising:

• at least one light source (5) designed to be powered by a drive current (I) so as to generate light;
• and
• an electronic control device (6) (50) (60) configured to control the drive current (I) supplied to said light source (5);
• said electronic control device (6) comprising:
• control means (9) configured to provide said drive current (I) to said light source (5), and to generate a control signal (CS) based on the difference between a quantity indicative of said drive current (I) and a predetermined reference electrical quantity (Iref);
• light source driving means (7) configured to regulate said drive current (I) passing through said light source (5) based on said control signal (CS);
• said vehicle lighting device (4) being characterized in that said light source driving means (7) comprise:
• voltage stabilizing means, which have one (41) or more intermediate nodes (41) (55) and are designed to provide in said intermediate nodes (41) (55), in a first operating condition, predetermined stabilized voltages (Vz2) (Vz3);
• first transistor means (36) having a control terminal connected to said control means (9) to receive therefrom said control signal (CS), and a first terminal connected to a reference line held at a constant reference voltage;
• second transistor means (37) having one or more control terminals connected to respective intermediate nodes (41) (55) of said voltage stabilizing means to be held, in said first operation condition, to said predetermined stabilized voltages (Vz2) (Vz3), a first terminal connected to said light source (5), and a second terminal connected to a second terminal of said first transistor means (36).