Biasing and driving circuit, based on a feedback voltage regulator, for an electric load

An electronic system, comprising:

• a feedback voltage regulator circuit including input terminals that in operation receive an alternating input voltage signal and a feedback input terminal that in operation receives a feedback voltage that is generated based on a load current through an electric load;
• a sensing element that in operation senses the load current through the electric load and generates and sensed voltage based upon the sensed load current;
• a current transducer coupled to the sensing element to receive the sensed voltage and coupled to the feedback input terminal, the current transducer in operation providing the feedback voltage based upon the sensed voltage;
• and
• a current generator that in operation receives the alternating input voltage signal and is coupled to the feedback input terminal to provide a biasing current signal that is a function of the alternating input voltage signal to modulate the feedback voltage on the feedback input terminal based upon the alternating input voltage signal.

A method, comprising:

• generating a sensing voltage as a function of a supply current through an electronic load;
• providing a feedback voltage on a feedback input of a feedback voltage regulator based on the sensing voltage;
• providing an alternating input voltage to the feedback voltage regulator;
• generating a biasing current based on the alternating input voltage;
• and
• modulating the feedback voltage based on the generated biasing current.