Modeling and Analysis of Boost Power Factor Correction Converter Operated in CrCM using Various Software Tools

Inhalt:
With emerging regulatory standards governing efficiency levels and harmonic levels for modern switched-mode power supplies (SMPS), more and more power supply designs are incorporating PFC capabilities. Boost PFC converter operating under critical conduction mode (CrCM), or borderline conduction mode (BCM) is one of the popular topologies for low-power applications. This focuses on the modeling and analysis of a single-phase boost PFC converter operating at CrCM with constant on-time voltage mode control. Three approaches have been adopted to model the aforementioned converter: detailed modeling, large signal average modeling, and small signal modeling. Detailed models have been developed using three software tools: Mathworks(r) Simulink(r), SIMetrix/SIMPLIS, and Plexim PLECS(r) for better understanding and for determining the ease of performing several analysis tasks in each of these tools. The stability and transient behavior of the proposed converter can be well-defined with the performed time and frequency domain analysis and the corresponding simulation result. Harmonic analysis of the circuit is also carried out using Simulink.