The article presents the methodology for the design of a solar tracker. The article presents the methodology for the design of a solar tracker. To align the panel with the sun based on the time, date and geographical position in which the photovoltaic panel is located model is used. From the model equations the angle of the panel on its axis is obtained and this value is the reference for a proportional derivative controller. The feedback signal is a potentiometer and linear actuator is used coupled with a crank mechanism the follower shaft.