Abstract: A brushless DC motor may include an annular rotor including a plurality of annular sectors. Each exemplary annular sector includes a respective array of permanent magnets embedded in and equally spaced circumferentially around each respective annular sector. The motor may further include an annular stator coaxially disposed within the annular rotor. An exemplary annular stator may include a plurality of coils mounted on and equally spaced circumferentially around the annular stator, where each coil may be energized with a current based at least in part on the rotor position. The motor may further include a position sensor that may generate an output signal indicative of the rotational position of the annular rotor, and a controller that may be configured to receive the output signal from the position sensor and utilize a power source to energize each coil of the plurality of coils based on the received output signal.