Now a day with increasing use of power converter devices
and power electronic loads, more emphasis is given to power
factor correction (PFC) and reduction in total harmonic
distortion (THD) in the current drawn from the power utility.
In order to improve the power quality, researchers have given
more attention on development of new topologies on power
converter. Improvements can be achieved by PFC techniques.
Since now, various passive and active power factor correction
circuits have been proposed, of which active power factor
circuits found to be more advantageous. Thus active PFC
techniques have rapidly become a vigorous research topic in
the power electronics field and efforts have been made on the
development of the PFC converters [1].