Suraj, G.O.Reddy, M.R.Dastagiri Reddy, B.D.2026-02-032025IEEE Transactions on Industrial Electronics, 2025, 72, 1, pp. 80-882780046https://doi.org/10.1109/TIE.2024.3423482https://idr.nitk.ac.in/handle/123456789/20478This article introduces a novel topology and design methodology of a high-power charger. The proposed topology integrates a modified 12-pulse Diode Bridge Rectifier (12pDBR) with an interleaved boost converter (IBC) to meet the charging requirements and power quality standards. This results in an efficient charger with a reduced number of components and magnetic ratings compared to its counterparts. The mathematical analysis that highlights the significance of triangular shaping of the output currents of a 12pDBR and its impact on the input current harmonics is presented. Furthermore, the role of overlap angle, which is a function of system inductances, in triangular wave shaping is emphasized. A systematic methodology for the coordinated design of 12pDBR and IBC is proposed. To verify the design, MATLAB/Simulink simulations are conducted, followed by experimental validation using a 1 kW prototype. The proposed topology attains a grid current Total Harmonic Distortion (%iTHD) of 4.9%, a power factor (PF) of 0.97 lag, and a charging current ripple of 2.75% at full load condition. © 1982-2012 IEEE.Topology12 pulse12-pulse diode bridge rectifierDc chokeDiode bridge rectifiersHigh powerHigh-power chargerInterleaved boost converterInterleaved boost convertersOverlap anglePowerTriangular currentTriangular current shapingPIN diodes