Patent ID: 6359799
Filing Date: 2002-03-19
Classification: H02M,Y02B

Abstract:
A power factor corrector module connectable to a three phase input supply comprising:three single phase circuits comprising three converters, each of said single phase circuits having a first input adapted to be connected to a phase of the three phase input supply, and an output connected in a series circuit with outputs of others of said single phase circuits to provide a total output voltage representing a sum output voltages from said three single phase circuits; and a control having three inputs and three outputs, each input adapted to be connected to a different phase of the three phase input supply and each output connected to a second input of one of said three converters, said control circuit operable to vary a duty cycle of each of said three converters using a reference signal synchronized with an input voltage to a respective converter, said reference signal being inversely proportional to a measured instantaneous input voltage to said respective converter.