Advanced Switching Sequences for a Multiphase Interleaved DC-DC Boost Converter Using TMS320F28335 DSP Control Card

The ripple current reduction of dc-dc interleaved boost converter (IBC) is always an industrial concern while using multiphase IBC in various industrial applications such as voltage regulator modules, electric vehicles (EVs), power factor correction (PFC) converters, and renewable energy applications. The pulse width modulation (PWM) based switching sequence is considered as the key factor to control the amount of generated current ripple from the IBC. In this paper, an advanced switching sequence is proposed to reduce the ripple current for a multiphase IBC. The simulation is carried out in MATLAB/Simulink environment to analyze the performance of the proposed switching sequences for a multiphase IBC. In simulation study, various parameters of the multiphase IBC with the proposed switching sequences have been shown for two-phase to five-phase converter structures. The IBC with the proposed switching sequence shows promising performance in terms of output voltage/current ripple and efficiency. The simulated current ripple factor and power conversion efficiency are found 0.008% and 97%, respectively with the proposed switching sequences. A laboratory scale prototype for a five phase IBC is implemented and tested using TMS320F28335 DSP Control Card to validate the performance of the proposed switching sequences.