Patent ID: 6975524

Claim:
A power factor correction device comprising: a rectifier ( 10 ) that may be connected to an AC power supply network ( 11 ) so as to receive an AC input voltage ( 100 ) and supply a rectified output voltage ( 110 ); a first analog module ( 20 ) connected to said rectifier ( 10 ) so as to receive said rectified voltage ( 110 ) and generate a corresponding first output signal ( 120 ); a second analog module ( 30 ) connected in parallel to said first module ( 20 ) and connected to said rectifier ( 10 ) so as to receive said rectified voltage ( 110 ) and generate a corresponding second output signal ( 130 ), said first and second output signals ( 120 , 130 ) being combined to obtain a main signal ( 140 ), destined for a load ( 40 ) and defining a main voltage (V) of said load ( 40 ) and an input current (I In ) absorbed by said rectifier ( 10 ). a digital controller ( 50 ) connected to said rectifier ( 10 ) and to said first and second modules ( 20 , 30 ) so as to receive as input said rectified voltage ( 110 ) and said main signal ( 140 ) and generate, accordingly, a command signal ( 150 ) to be transmitted to said first and second modules ( 20 , 30 ) for the purpose of regulating at least said input current (I In ) and thereby obtaining control over the power factor (PF) of said load ( 40 ).