In this paper, a deloading control technique is proposed for a photovoltaic system to regulate DC link voltage under lightly loaded conditions. A simplified deloading control technique that can regulate the DC link voltage is proposed here for the battery bank supported PV system. In addition, the proposed control technique is implemented in field-programmable gate array (FPGA)-in-loop simulation to verify the feasibility of successful hardware implementation. The proposed controller is converted into an equivalent code in VHDL, a hardware description language. In the implementation process, the code is implemented in Zedboard (FPGA hardware), which is interfaced with MATLAB/Simulink and Vivado software. The results obtained using the FPGA-in-Loop simulation are satisfactory and maintaining the DC link voltage within the limit under both MPPT and deloading conditions. © 2021 IEEE.