A rotating electrical transformer that is used to measure degrees of rotation is known as a resolver. A resolver is an electromechanical device like an encoder and the main function of this device is to change the mechanical motion to an electronic signal. it broadcasts an analog signal instead of a digital one. It is a rotating transformer including three windings namely one primary and two secondaries and phased at 90 degrees. It is used in different velocity and position feedback applications because of its good performance like servo motor feedback, light-duty, heavy-duty and light industrial.