Indirect power factor correction method and corresponding sensorless switch-mode resonant AC/DC converter [Electronic resource]Šklovski, Jevgeni; Janson, KunoIECON'2006 : the 32nd Annual Conference of the IEEE Industrial Electronics Society :November 6-10, 2006, Paris : proceedings2006 / p. 2378-2383 : ill. [CD-ROM] https://ieeexplore.ieee.org/document/4153375