Although both AC and DC motors serve the same function of converting electricity into mechanical energy, they are powered, constructed and controlled differently. The most basic difference is the power source. AC motors are AC powered (alternating current), while DC motors are powered by direct current, such as batteries, DC power sources, or AC-to-DC converters. DC motors are constructed with carbon brushes and a commutator, which maintain, limit speed and usually reduce the expected life of a DC motor. AC induction motors do not use brushes and usually have a longer life span. The final basic difference is speed control. The speed of the DC motor is controlled by changing the current current armature, while the speed of the AC motor is controlled by changing the frequency, which is usually performed with frequency drive control.
With a large selection of hair dryers on the market today, the decision to buy can be challenging. Hairdryer is an essential styling tool in our daily lives in homes and salons. The type of engine built into your hair dryer will be your primary consideration during your decision. The hair dryer motor determines power, airflow and diffuse heat.
There are two different types of motors used by most hair dryers, with AC motor and DC motor. Here is the difference between AC and DC motors.
- flow of alternating current
- weighs the engine
- longer life span
- efficiency 1500 to 2000 rpm
- strong air flow
- quick drying
- for professional use in the salon
- relatively quiet work
- direct current flow
- shorter life span of 400-700 hours
- less powerful airflow
- good for everyday home use
- a bit noisier compared to an AC motor