In this paper, the design of controller that realizes the operation of PV panel at its maximum power point tracker by means of microcomputer- based Maximum Power Point Tracker, MPPT, and then examines the efficiency of system controller. The maximum power point tracker system used consists mainly of solar panel source, DC/DC converter (load conditioner), the microcomputer proceeds the data and execute the MPPT algorithm, the data acquisition or acquires the real current and voltage from the panel, and the load. The over all system operation is implemented practically using the most popular three control algorithms (Perturbation and Observation, Incremental Conductance., and Power derivation), and the obtained results demonstrate the reliability of the control system.