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http://dx.doi.org/10.6113/JPE.2012.12.5.689

Effects of Imperfect Sinusoidal Input Currents on the Performance of a Boost PFC Pre-Regulator  

Cheung, Martin K.H. (Infineon Technologies Hong Kong Limited, PMM High Power Application Center)
Chow, Martin H.L. (Dept. of Electronic and Information Engineering, The Hong Kong Polytechnic University)
Lai, Y.M. (Dept. of Electronic and Information Engineering, The Hong Kong Polytechnic University)
Loo, K.H. (Faculty of Engineering, The Hong Kong Polytechnic University)
Publication Information
Journal of Power Electronics / v.12, no.5, 2012 , pp. 689-698 More about this Journal
Abstract
This paper investigates the effects of applying different input current waveshapes on the performance of a continuous-conduction-mode (CCM) power-factor-correction (PFC) boost pre-regulator. It is found that the output voltage ripple of the pre-regulator can be reduced if the input current is modified to include controlled amount of higher order harmonics. This finding allows us to balance the performance of output regulation and the harmonic current emission when coming to the design of the pre-regulator. An experimental PFC boost pre-regulator prototype is constructed to verify the analysis and show the benefit of the pre-regulator operating with input current containing higher order harmonics.
Keywords
Average current-mode control; Boost converter; Continuous-conduction-mode (CCM); Harmonic distortion; Load transient; Power factor correction;
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