Karunakaran, E.Yellasiri, Y.Nageswar Rao, B.N.Vivek, P.S.S.Aditya, K.2026-02-0620242024 International Conference on Recent Innovation in Smart and Sustainable Technology, ICRISST 2024, 2024, Vol., , p. -https://doi.org/10.1109/ICRISST59181.2024.10921960https://idr.nitk.ac.in/handle/123456789/29200Cascaded H-bridge (CHB) MLI have emerged as the preferred choice due to their high quality in output waveforms with low harmonic distortion. However, a key limitation in these inverters lies in the requirement of a dedicated DC source for each bridge. To overcome this challenge, there is a transition towards asymmetrical cascaded H-bridge (ACHB) MLIs, enabling the use of a variable DC source for each bridge. The variability in DC supply is achieved through a high-frequency link. This paper introduces a novel optimized switching technique for asymmetrical cascaded H-bridge (ACHB) MLIs with a single DC input incorporating a high-frequency link (HFL). The effectiveness of the suggested approach in achieving a 27-level asymmetric multilevel inverter is substantiated by experimental outcomes obtained through MATLAB/Simulink simulations. © 2024 IEEE.Asymmetrical CHBhigh-frequency linkmultilevel invertersoptimized switching technique