A Single-Source Switched-Capacitor-Based Step-Up Multilevel Inverter With Reduced Components

Switched-capacitor-based multilevel inverters (SC MLIs) have received a great deal of interest that reduces the dc source requirement and improves power quality. However, multiple sources large number switches to generate high-quality boost output are fundamental issues in SC MLIs. This article presents step-up 17-level MLI using reduced switches, three capacitors, single source. The steady-state voltage across capacitors is maintained ratio 1:2:0.5 contributes quadruple boosting ability without any auxiliary capacitor balancing circuit. Besides, lower switch count conduction path operation 50% at frequency ensures total loss reduction proposed A comparative assessment with recently developed MLIs terms components, gain, stress, cost factor elucidates advantages MLI. After detailed circuit analysis evaluation, simulations performed verify inherent features Further, both high-frequency switching techniques, extensive experimental test results presented under different transient conditions validate operational feasibility prototype.