Current spectra translation in single phase rectifiers: implications to active power factor correction

This brief examines the input and output current spectra translation of a line commutated single phase full wave rectifier. Analytical expressions for the spectra translation of the current harmonics are derived. The proposed method is then used to quantify the contribution of a current-loop with finite bandwidth to the overall total harmonic distortion (THD) budget in average current mode active power factor correction (APFC) systems. The proposed theory is supported by computer simulation.