Introduction
   The ever increasing market demand for energy efficient systems - from motor vehicles to home appliances, robotics to medical equipment, etc. - is pushing toward the adoption of more and more efficient electric motors (e.g. 3-phase synchronous motors) and drives. The field oriented control (FOC) scheme meets this demand while allowing, at the same time, the achievement of a better regulation of electric motor torque and speed together with a higher efficiency compared with many other solutions available on the market today.