Minimizing Input Current Ripple for Four-Phase Input-Parallel Output-Series DC–DC Converter With Phase-Shift Modulation
Van-Dai Bui, Honnyong Cha
Abstract
This letter proposes a pulsewidth modulation (PWM) scheme based on phase-shift modulation for the four-phase input-parallel output-series (4P-IPOS) converter. And operation with dual-output configuration is investigated. The natural output voltages and inductor currents balancing can be achieved even without any extra components or dedicated control. In addition, compared with the conventional PWM scheme, performance improves. The input current ripple is reduced significantly at high voltage gain. An 800-W prototype of the 4P-IPOS converter was built and tested to verify the performance of the suggested scheme.
Topics & Concepts
RipplePulse-width modulationInductorControl theory (sociology)VoltageModulation (music)Three-phaseCurrent (fluid)Electronic engineeringComputer scienceEngineeringPhysicsElectrical engineeringControl (management)Artificial intelligenceAcousticsAdvanced DC-DC ConvertersMultilevel Inverters and ConvertersMicrogrid Control and Optimization