A New Zero-Ripple Boost Converter with Separate Inductors for Power Factor Correction

In this paper, a new boost topology with zero-ripple input current and non-pulsating output current for power factor correction (PFC) is proposed. By using separate inductors, this topology not only can compliance with any Standards or Regulations, but also allows clean power in universal AC line (90 Vac to 264 Vac). The proposed topology is designed to work in discontinuous conduction mode (DCM) to eliminate diode reverse recovery loss and provide automatic control, so that reduce the complexity of the controller. Compared with conventional boost converter, the proposed topology can remove electromagnetic interference (EMI) filter without sacrificing the input current harmonics. Consequently, smaller passive components, light weight and low cost can be achieved. Simulation results are given to confirm the theoretically predicted behavior.