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Electric motor
Videos
An electric motor is a machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a
Rotor (left) and stator (right)
Rotor (left) and stator (right)
Commutator in a universal motor from a vacuum cleaner. Parts: (A) commutator, (B) brush
Commutator in a universal motor from a vacuum cleaner. Parts: (A) commutator, (B) brush
Faraday's electromagnetic experiment, 1821, the first demonstration of the conversion of electrical energy into motion
Faraday's electromagnetic experiment, 1821, the first demonstration of the conversion of electrical energy into motion
Jedlik's "electromagnetic self-rotor", 1827 (Museum of Applied Arts, Budapest). The historic motor still works perfectly today.
Jedlik's "electromagnetic self-rotor", 1827 (Museum of Applied Arts, Budapest). The historic motor still works perfectly today.
Brushless DC electric motor
Videos
A brushless DC electric motor, also known as an electronically commutated motor, is a synchronous motor using a direct current electric power supply. It uses an electronic controller to switch DC curr
Electric motor
…motors may also be classified by considerations such as power source type, construction, application and type of motion output. They can be brushed or brushless, single-phase, two-phase, or three-phase, axial or radial flux, and may be air-cooled or liquid-cooled. Standardized electric motors provide power for…
The motor from a 3.5 in floppy disk drive. The coils, arranged radially, are made from copper wire coated with blue insulation. The rotor (upper right
The motor from a 3.5 in floppy disk drive. The coils, arranged radially, are made from copper wire coated with blue insulation. The rotor (upper right) has been removed and turned upside-down. The gray ring inside its cup is a permanent magnet. This particular motor is an outrunner, with the stator inside the rotor.
DC brushless ducted fan. The two coils on the printed circuit board interact with six round permanent magnets in the fan assembly.
DC brushless ducted fan. The two coils on the printed circuit board interact with six round permanent magnets in the fan assembly.
The four poles on the stator of a two-winding single-phase brushless motor. This is part of a computer cooling fan; the rotor has been removed.
The four poles on the stator of a two-winding single-phase brushless motor. This is part of a computer cooling fan; the rotor has been removed.
A microprocessor-controlled BLDC motor powering a micro radio-controlled airplane. This external rotor motor weighs 5 g and consumes approximately 11
A microprocessor-controlled BLDC motor powering a micro radio-controlled airplane. This external rotor motor weighs 5 g and consumes approximately 11 W.