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Bipolar toy motor of 1948. Note the three-pole rotor with a bipolar field. A bipolar electric motor is an electric motor with only two (hence bi-) poles to its stationary field. [1] They are an example of the simple brushed DC motor, with a commutator. This field may be generated by either a permanent magnet or a field coil.
A brushed DC electric motor is an internally commutated electric motor designed to be run from a direct current power source and utilizing an electric brush for contact. Brushed motors were the first commercially important application of electric power to driving mechanical energy, and DC distribution systems were used for more than 100 years ...
At the simplest, brushed permanent magnet DC motors are used, owing to their simplicity and low cost. Small industrial servomotors are typically electronically commutated brushless motors. [ 13 ] For large industrial servomotors, AC induction motors are typically used, often with variable frequency drives to allow control of their speed.
The grey/green cylinder is the brush-type DC motor. The black section at the bottom contains the planetary reduction gear, and the black object on top of the motor is the optical rotary encoder for position feedback. Small R/C servo mechanism. 1. electric motor 2. position feedback potentiometer 3. reduction gear 4. actuator arm
In 1999, the company restructured and rebranded as Maxon Motor AG. In 2012, the company started offering DC motor drive configuration tooling through its website. In 2017, the company acquired Zub motion control AG, based in Lucerne, Switzerland. Parvalux Electric Motors Ltd based in Poole, UK, was also acquired by Maxon Motor AG in 2018.
Small DC motors are used in tools, toys, and appliances. The universal motor, a lightweight brushed motor used for portable power tools and appliances can operate on direct current and alternating current. Larger DC motors are currently used in propulsion of electric vehicles, elevator and hoists, and in drives for steel rolling mills.
The universal motor is a type of electric motor that can operate on either AC or DC power and uses an electromagnet as its stator to create its magnetic field. [1] It is a commutated series-wound motor where the stator's field coils are connected in series with the rotor windings through a commutator. It is often referred to as an AC series motor.
Hub motors may be implemented with direct-drive or planetary gears. [17] They rotate the wheel either through an axial, inrunner, or outrunner rotor design, with either brushed or brushless commutator design. [18] Honda FCX Concept 2005 in-wheel motor with high-voltage wires in orange.