Noon James P. Designing High-Power Factor Off-Line Power Supplies

Texas Instruments, 2003. — 36 p.Designing High-Power Factor Off-Line Power SuppliesThe purpose of this paper is to provide a tutorial on power factor correction topologies and control
techniques. The first part of the paper concentrates on identifying the trade-offs between various
operating modes. A framework is developed to compare losses and device stresses in the CCM and CRM boost topologies. The second part provides an overview of the main design choices as well as design equations. The power stage and control circuitry design equations are explained and presented.