A DC motor does not accept AC power because this power would reverse the current direction every half cycle and this would only cause twitches and not rotation. Likewise, an alternating current motor does not accept DC power, as this power supply will not offer convenient changes in the current direction for proper motor operation.
If the DC motor is supplied with DC power, it will not reverse its direction of rotation, but if the polarity of the source is reversed, it will continue to rotate in the same direction, operating correctly. A higher power universal seal4-50/d10 rab motor can be achieved if modifications are made to your design so that it performs well with direct current and alternating current.
The universal motor is strong, compact, low cost, therefore ideal and commonly applied in electric mixers, vacuum cleaners and various other appliances. In these devices, the wear time causes a wear on the carbon brushes that should be replaced with new ones. When we replace the permanent magnets of the stators of the motors of direct current by electromagnets and we connect these electromagnets in series in the same circuit of the rotor and switch, we will have a universal motor.