Boost Compensator for Predictive Current Mode Control of High Power Factor Boost Rectifier

This paper presents the design of the Boost compensator for a predictive current mode control of high power factor boost rectifier. The general features are no input voltage sensing, no use of multiplier, and no inner current loop regulator. The switching principle of the controller is predictive, as the actual current equals the reference current at the ending of the switching period. This switching law will extend the range of the continuous conduction mode (CCM) of operation. boost compensator is designed by using k-factor approach with the help of low frequency small signal model of the boost rectifier switched by the predictive current mode control. Simulation results on a 400W boost rectifier are presented.