Abstract: A control circuit for reducing Total Harmonic Distortion (THD) in the power supply to an electric load, includes an input stage (10) for receiving a network voltage (V1) and providing a corresponding rectified sinusoidal output supply voltage (Vbus); an output stage (20) associated with the input stage (10) for providing power supply to an electric load (L); a control module (30) designed to control the power factor and the harmonic distortion (THD) of the energy obtained from the network voltage (V1), by regulating a pulse current (S1) that acts upon the power supply absorbed by the output stage (20); a regulating module (40) which is designed to: sense a main signal (SW) representative of the supply voltage (Vbus); compare the main signal (SW) with a preset reference (Vref); generate a regulating signal (S3) designed for the control module (30). The control module (30) is designed to modify the pulse current (S1) according to the regulating signal (S3).

Abstract: A control circuit for reducing Total Harmonic Distortion (THD) in the power supply to an electric load, includes an input stage (10) for receiving a network voltage (V1) and providing a corresponding rectified sinusoidal output supply voltage (Vbus); an output stage (20) associated with the input stage (10) for providing power supply to an electric load (L); a control module (30) designed to control the power factor and the harmonic distortion (THD) of the energy obtained from the network voltage (V1), by regulating a pulse current (S1) that acts upon the power supply absorbed by the output stage (20); a regulating module (40) which is designed to: sense a main signal (SW) representative of the supply voltage (Vbus); compare the main signal (SW) with a preset reference (Vref); generate a regulating signal (S3) designed for the control module (30). The control module (30) is designed to modify the pulse current (S1) according to the regulating signal (S3).

Abstract: A modular power supply (1) includes a primary input portion (2) operating with predetermined input parameters, and an output portion (3) comprising at least two modules (4) to be selected for modifying the power supply's output parameters. It is further provided a container (5) in which the primary input portion and the output portion are housed. The container comprises an inaccessible portion (6) adapted to house the primary input portion separated from the output portion, and a cover (7) hinged on a base structure (8) of the container for access to the output portion. The inaccessible portion of the container comprises a partition (9) disposed between the primary input portion and the output portion and provided with openings (10) for cooling the primary input and secondary portions. The openings are such disposed that access to the primary input portion is not allowed.

Abstract: Embodiments of DC power related systems and methods including a topology and devices to enable DC powered or driven constant current devices to be connected in a parallel configuration while maintaining a series connection internal to the devices.

Abstract: A modular power supply (1) includes a primary input portion (2) operating with predetermined input parameters, and an output portion (3) comprising at least two modules (4) to be selected for modifying the power supply's output parameters. It is further provided a container (5) in which the primary input portion and the output portion are housed. The container comprises an inaccessible portion (6) adapted to house the primary input portion separated from the output portion, and a cover (7) hinged on a base structure (8) of the container for access to the output portion. The inaccessible portion of the container comprises a partition (9) disposed between the primary input portion and the output portion and provided with openings (10) for cooling the primary input and secondary portions. The openings are such disposed that access to the primary input portion is not allowed.

Abstract: A power factor correction device comprising a rectifier (10) operable to receive an AC input voltage (100) and output a rectified voltage (110), and a first analog module (20) connected to the rectifier (10) so as to receive the rectified voltage (110) and generate a corresponding first output signal (120). The device (1) also comprises a second analog module (30) connected in parallel to the first module (20) and connected to the rectifier (10) so as to receive the rectified voltage (110) and generate a corresponding second output signal (130); the output signals (120, 130) are duly combined and transmitted to a load (40) in the form of a main signal (140) that defines a main current (I) and main voltage (V) of the load (40) itself.