Apparatus for controlling the power used in required operating conditions that vary over time, particularly for supplying power to lighting systems

An apparatus for controlling the power used in required operating conditions that vary over time, particularly for supplying power to lighting systems, using solid-state technology and comprising an inverter unit (1) which, above a certain value of voltage and power drawn directly from the power supply line, supplies a high-frequency voltage, which is suitable to be applied to series transformers (2) and to be added to the line voltage in order to supply the load (6), and also comprising a voltage regulation and stabilization unit.