An exciting coil of a motor is formed to be controlled by using an analog timer, to thus control an excitation control circuit of a motor control apparatus, whereby an excitation control circuit which excites the exciting coil of a motor control apparatus can be simplified and complexity can be reduced by simplifying a circuit construction of an excitation controller. The apparatus includes an auxiliary winding (sub-coil) and a main winding (main coil), and an exciting device electrically connected with the auxiliary winding and the main winding, determines an excitation application time and an excitation time and generates an excitation current according to the determined excitation application time and the excitation time.