Comparison of Isolated Boost Full Bridge Converters for Power Factor Correction Application

Power factor correction feature became demanded in modern converters due to swift increase in penetration of electronic devices. At the same time, implementation of soft-switching modulation techniques allows to reduce the power losses in converters and increase their efficiency. Current source converters have native potential to implement both features. This paper compares well-known parallel resonant, newly emerged adaptive resonant and secondary-modulated topologies in order to evaluate the main benefits and drawbacks and determine the most suitable converters for AC-DC application with soft-switching and power factor correction.