Abstarct: Recently, the use of microgirds and renewable energy resources especially DC microgrids have been increased. In this regard, the accurate power sharing among the distributed energy resources is crucial in the DC microgirds. In this dissertation, the power sharing baxsed on the droop characteristics is studied. In this regard, firstly, the concept of droop method as a decentralized power sharing method is expressed. In order to improve the performance of the droop baxsed power sharing two control methods called adaptive droop controll and fuzzy baxsed modified droop controll methods have been proposed. In this dissertation, the two porposed methods have been used to share the electric power properly between two DC-DC converters. The proposed methods have been simulated on a test system in the Simulixnk software to perform power sharing between two parallel DC-DC converters. After that, in order to show the performance of the proposed methods practically, they have been implemented on an experimental setup system. The simulation results of the proposed droop baxsed methods have been compared with the conventional droop method. The comparison shows that the proposed methods, have better performance compare with the conventional method. Also, the proposed fuzzy baxsed method have been compared with adaptive method and the results shown that the fuzzy baxsed method has better performance and easier inplementation in DC Microgrids. Similarly, this comparison has been also performed between the experimental and simulation results for the proposed methods. The experimental as well as the simulation results have indicated validity and capability of the proposed methods in power sharing in a DC microgrid.