Electronic system for driving light sources and method of driving light sources

A method, comprising:

• generating a pulse-width modulated supply signal;
• transmitting the pulse-width modulated supply signal to a subset of lighting devices of a plurality of lighting devices, each lighting device in the subset of lighting devices receiving the same pulse-width modulated supply signal;
• generating a control signal for each lighting device in the subset of lighting devices, the control signal for each lighting device being independently controlled with respect to the pulse-width modulated supply signal;
• and
• individually coupling and decoupling each lighting device in the subset of lighting devices from the pulse-width modulated supply signal as a function of the control signal to individually adjust a brightness of each lighting device in the subset of lighting devices.

A method of operating a device, comprising:

• receiving, by a driver circuit, data from a microcontroller, the driver circuit comprising a plurality of output supply pins
• selectively propagating a supply voltage to the output supply pins to transmit a pulse-width modulated supply signal at a corresponding output supply pin;
• computing a duty-cycle value of the pulse-width modulated supply signal at the corresponding output supply pin as a function of the data received from the microcontroller;
• and
• individually controlling, by the microcontroller, electronic switches via a corresponding control signal to individually adjust a brightness of a subset of lighting devices, the device comprising a plurality of lighting devices coupled to the plurality of output supply pins, wherein the subset of lighting devices is coupled to a same output supply pin of the plurality of output supply pins, the electronic switches coupled in series to the subset of lighting devices.