Design and Implementation of Battery Charger with Power Factor Correction using Sepic Converter and Full-bridge DC-DC Converter

Moh. Zaenal Efendi (Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya, Kampus PENS, Keputih Sukolilo, Surabaya)
Novie Ayub Windarko (Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya, Kampus PENS, Keputih Sukolilo, Surabaya)
Moh. Faisal Amir (Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya, Kampus PENS, Keputih Sukolilo, Surabaya)

Mechatronics, Electrical Power, and Vehicular Technology
Vol 4, No 2 (2013)

This paper presents a design and implementation of a converter which has a high power factor for battery charger application. The converter is a combination of a SEPIC converter and a full-bridge DC-DC converter connected in two stages of series circuit. The SEPIC converter works in discontinuous conduction mode and it serves as a power factor corrector so that the shape of input current waveform follows the shape of input voltage waveform. The full-bridge DC-DC converter serves as a regulator of output voltage and operates at continuous conduction mode. The experimental results show that the power factor of this converter system can be achieved up to 0.96.