The present project pretends to show the basic operation by which the electrical machines are governed and specifically to make an exhaustive analysis and design of a hybrid stepper motor. This motor will be of low power. Magnetic, electrical and thermal calculations will be shown for its design. They explain your control and the different techniques of your control. The project will consist of a theoretical memory, the calculation and design of the motor, the analysis of the calculations, the control, the plans of this motor and the budget.