Design of Energy Efficient Reversible Full Adder and Ripple Carry Adder for Digital Computing Applications

In VLSI (Very Large Scale Integration), reversible gates play an important role in the design of low-power circuits. Unlike conventional gates, which are irreversible and result in the loss of information, reversible gates ensure that the input information can be completely recovered from the output. Reversible gates have applications in various areas, such as quantum computing, low-power digital circuits, and cryptography. They are particularly useful in quantum computing, where the conservation of information is crucial due to the principles of quantum mechanics. Using reversible gates such as the Toffoli, Feynman, and new gates, we have constructed and studied FA and RCA in this study. To simulate and synthesize, we used ModelSim and Xilinx. The FA’s and RCA’s speed and area are contrasted with those of conventional gates and reversible gates. The PFA and PRCA were discovered to have produced the best results in terms of area and delay.