Single dc source multilevel inverter with changeable gains and levels for low-power loads

Emad Samadaei*, Aidin Salehi, Mina Iranian, Edris Pouresmaeil

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)
56 Downloads (Pure)


Different types of multilevel converters have been used to convert DC voltage to AC voltage for different applications. It is, however, desirable for flexible AC output voltage to be created from a single DC source at lower cost. This paper presents a new type of single DC source multilevel inverter which has the ability to create a different number of levels with low rate components. This device is also able boost the magnitude of the output voltage by means of a variable gain with one DC source. The advantages of the multilevel inverter are rapid stepping among levels, and its ability to produce different ranges of levels (seven, nine and eleven) and gains (two, four and eight). The proposed multilevel inverter includes six semiconductor switches, eight diodes, two capacitors and two inductors, making it suitable for low-power applications. A simulation in MATLAB and experimental tests on a prototype setup showed good performance for different modulations, with THD% down to 2.29%, which are meets the IEEE standard (IEEE 519).

Original languageEnglish
Article number937
Pages (from-to)1-16
Number of pages15
JournalElectronics (Switzerland)
Issue number6
Publication statusPublished - Jun 2020
MoE publication typeA1 Journal article-refereed


  • Boost inverter
  • Low components
  • Multilevel inverter
  • Power electronics
  • Single source


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