HIGH POWER FACTOR RECTIFIER BASED ON BUCK PFC CONVERTER OPERATING IN CRITICAL CONTINUOUS CONDUCTION MODE
| Author(s) | : | Ms.S.P.ZADE, PROF.P.H.PIKALE |
| Institution | : | STUDENT OF ELECTRICAL POWER SYSTEM, DR. SAU KGIET,Darapur |
| Published In | : | Vol. 5, Issue 18 — January 2018 |
| Page No. | : | - |
| Domain | : | Engineering |
| Type | : | Research Paper |
| ISSN (Online) | : | 2348-4470 |
| ISSN (Print) | : | 2348-6406 |
An improved buck power factor correction (PFC) converter topology is proposed in this paper. By addingan auxiliary switch and two diodes, the dead zones in ac input current of traditional buck PFC converter can beeliminated. An improved constant ON-time control is proposed and utilized in this improved buck PFC converter toforce it that operates in critical conduction mode (CRM).With optimal control parameters, nearly unit power factor canbe achieved and the input current harmonics can meet the IEC61000-3-2 class C standard within the universal inputvoltage range. Moreover, the efficiency of the proposed converter is not deteriorated compared to the conventional buckconverter. Detailed theoretical analysis and optimal design considerations for the proposed converter are presented andverified by a 100-W lab made prototype.
Ms.S.P.ZADE, PROF.P.H.PIKALE, “HIGH POWER FACTOR RECTIFIER BASED ON BUCK PFC CONVERTER OPERATING IN CRITICAL CONTINUOUS CONDUCTION MODE”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 5, Issue 18, pp. -, January 2018.
