Salodkar, P.A.Kulkarni, P.S.Waghmare, M.A.Chaturvedi, P.C.Sandeep, N.2026-02-052019IETE Journal of Research, 2019, 65, 1, pp. 19-323772063https://doi.org/10.1080/03772063.2017.1396934https://idr.nitk.ac.in/handle/123456789/24735This paper presents an asymmetrical H-bridge single-phase seven-level inverter topology with modified gating scheme for reducing the number of high-frequency switches. Due to shortcomings like steady-state error and problems in removing low-order harmonics associated with proportional integral controller, proportional resonant controller is used for grid-connected converter current control. A practical application of proportional resonant current controller is developed using a low-cost dsPIC33EP256MC202 microcontroller to keep the current injected in to the grid. The validity of proposed inverter and control scheme is verified through simulation and implemented for low-voltage laboratory prototype. © 2017, © 2017 IETE.Bridge circuitsElectric current controlElectric invertersElectric rectifiersPower qualityPulse width modulationResonanceTopologyTwo term control systemsVoltage controlAsymmetric source configurationCurrent controllerGrid-connected convertersHigh-frequency switchesMultilevel inverterProportional integral controllersProportional resonant controllersResonant current controllerControllers