Patent ID: 7375989

Claim:
A method for modulating a discontinuous conduction mode (DCM) Boost Rectifier having a switchable booster section, the method comprising: defining a booster section ON time modulation signal having a modulation characteristic according to the following equation: T ON (φ)= f 1(φ)+ f 2(φ)+ f 3(φ), where, φ defines a phase angle for an input phase voltage of the DCM Boost Rectifier; T ON (φ) defines a modulation characteristic for an ON time of the booster section, and is a continuous function; f1(φ) defines a first function from 0≦φ≦π/3; f2(φ) defines a second function from π/3≦φ≦2π/3; f3(φ) defines a third function from 2π/3≦φ≦π; and modulating the switchable booster section using the modulation signal.