Is the DC motor of the electric fan better than the AC motor?

Dc motors are generally low-power, such as cooling fans or power amplifiers in computers, which use DC. High-power electric fans are usually alternating current, such as electric fans used at home.

There is no good problem between DC motor and AC motor, and their characteristics and uses are different.

DC speed regulation is very convenient, as long as the voltage is changed, the torque is basically unaffected. AC speed regulation is more complicated.

In addition, AC motor is more convenient to use electricity, and DC motor needs rectifier to work.