Achieving High Input PF for CRM Buck-Buck/Boost PFC Converter

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“…For modifying the performance of traditional buck converter, various research has proposed various topologies and control schemes (Endo, Yamashita & Sugiura, 1992;Lee, Wang & Hui, 1997;Spiazzi & Buso, 2000;Huber, Gang & Jovanovic, 2011;Jang & Jovanović, 2011;Lamar et al, 2012;Ki & Lu, 2013;Al Gabri, Fardoun & Ismail, 2015;Memon et al, 2016;Memon et al, 2017;Memon et al, 2018aMemon et al, , 2018bMemon et al, 2019aMemon et al, , 2019bMemon et al, , 2019cMemon et al, , 2019d Most of the work in the literature is done to improve the PF of the buck converter. The purpose of this paper is to introduce the control scheme which can improve the efficiency of DCM buck converter.…”

“…In order to meet relevant harmonic standard and reducing input current distortion, various researchers have proposed different types of power factor correction (PFC) converters (García et al, 2003;Singh et al, 2011;Memon et al, 2016;Memon et al, 2018aMemon et al, , 2018bMemon et al, 2019aMemon et al, , 2019bMemon et al, , 2019cMemon et al, , 2019dMemon et al, 2020aMemon et al, , 2020bMemon et al, , 2020c.…”

“…The buck converter now days have attracted the attention of the many researchers (Mahdavi & Farzanehfard, 2010;Liu et al, 2014;Wu et al, 2011;Wu et al, 2012;Memon et al, 2016;Memon et al, 2018aMemon et al, , 2018bMemon et al, 2019aMemon et al, , 2019bMemon et al, , 2019cMemon et al, , 2019d The input PF of buck converter in low because of dead zone in the average input current that is present until input voltage is more than output voltage. It causes the input current to contain large harmonic disturbances.…”

“…For modifying the performance of buck converter, various researchers have proposed various techniques and control schemes. Many research attempts have been conducted to improve the performances of the conventional buck PFC converter (Mahdavi & Farzanehfard, 2010;Liu et al, 2014;Wu et al, 2011;Wu et al, 2012;Memon et al, 2016;Memon et al, 2018aMemon et al, , 2018bMemon et al, 2019aMemon et al, , 2019bMemon et al, , 2019cMemon et al, , 2019d.…”

“…The integration of another converter with buck converter is discussed to enhance the PF in . The works in Memon et al (2016), Memon et al (2018a, 2018b and Memon et al (2019aMemon et al ( , 2019bMemon et al ( , 2019cMemon et al ( 2019d have introduced various control schemes and topologies for buck converter to attain high PF and efficiency.…”