This paper presents a triple-mode average current control (TACC) strategy to achieve unity power factor and reduce the current stress for a boost PFC converter. The controller switches among different modes in each half-line cycle. and smooth transition is ensured by mapping of the operation region. By adaptive mode shifting. https://www.pomyslnaszycie.com/us-topo-7-5-minute-map-for-booger-canyon-az-fashion/