Objectif Gard ALÈS Crouzet Motors inaugure son nouveau centre d'expertise ... Objectif Gard Le nouveau site de conception et de production de moteurs à courant continu Crouzet Motors a été inauguré, ce matin, à Alès.
Brushless DC (BLDC) motors have experienced a rapid adoption in the marketplace and over a broad range of motion control applications due to the distinct benefits they have over traditional brushed DC motors: less maintenance, higher operating...
The DRV10963EVM evaluation module (EVM) is a cost-effective, sensorless solution for running a 3-phase BLDC motor. The EVM includes a TLC555 low-power timer configured to supply pulse width modulation (PWM), and a potentiometer to adjust the speed of the motor.The DRV10963 is a 5-V, 3-phase sensorless BLDC motor driver that simplifies layout and reduces board space by 80 percent, allowing designers to create smaller, sleeker, more innovative designs. It includes integrated commutation logic, which enables instant motor spin with no code development, while its 180-degree pure sinusoidal outputs provide an efficient and quiet drive. Features include extended battery life, low power, accelerated time to market, reduced board space and ease of use, and efficient and quiet drive.
A brushless dc (BLDC) motor is essentially a dc motor without the mechanical commutation of the brushed dc motor. BLDC motors are powered by direct current and have electronic commutation systems instead of the mechanical brushes and commutators used in brushed dc motors.
All dc motors generate a magnetic field, either via electromagnetic windings or permanent magnets. An armature, which is often a coil of wires, is placed between the north and south poles of a magnet. When current flows through the armature, the field produced by the armature interacts with the magnetic field from the magnets and eventually generates a torque and thereby motion.
For motion control applications, the most common dc motor types are the basic brushed dc motor, brushless motors, and permanent magnet motors.
Dans le domaine de la machine à laver, ce moteur novateur, à longue durée de vie, est économe en énergie, silencieux, avec un rendement de 90 %. Selni vient d’ailleurs d’inaugurer à Nevers, en février 2014, une nouvelle chaîne de production dédiée aux moteurs BDLC. Les applications de la technologie BLDC dans d’autres domaines, comme l’éolien, sont prometteurs en termes de marchés et d’emploi.
Allied Motion Dordrecht announces the availability of KinetiMax 54 motor series.
These improvements together with its robust bearing system, capable of withstanding high side loading, its speed adjustability (300 to 4000 RPM) and speed output signal (36 pules per rev) ensure that the new KinetiMax 54 EB will continue as a favorite choice among designers as it has been for over 10 years in a broad range of applications in medical, instrumentation, vehicle, factory automation and other markets where a minimum operating life of 20.000 hours is a benefit.
Applimotion, Inc. offers high performance BLDC motors, high torque motors, frameless motors and actuators that are specifically designed for medical devices, unmanned vehicle systems and defense applications.
/PRNewswire/ -- Buehler Motor, Inc. (http://www.buehlermotor.com), a global company focused on the development and production of technically challenging mechatronic drive solutions, today introduced to the North American market a new 62-millimeter...
The most often cited advantages of brushless DC (BLDC) motors are high reliability and low maintenance [1. G. K. Dubey. Fundamentals of Electrical Drives (Second Edition). Alpha Science Int'l Ltd., 2001.
Having understood the construction and basic operating principle of BLDC motor in the first part of this article, it becomes important to understand the motor control options available for the reliable operation and protection of motors...
Here is an application note from Atmel based on sensor driven BLDC control implemented on AVR microcontrollers. This application note describes the control of a BLDC motor with Hall effect position sensors.
The two are largely the same, fundamentally. However, they differer in intended application. A stepper motor is intended to be operated in, well, steps. A BLDC motor is intended to be operated to provide smooth motion.
Since stepper motors are used for motion control, repeatability of the steps is desirable. That is, if you start at one step, then to another, then back to the first, it should ideally return to exactly where it was previously. Various things can mess this up; slop in the bearings, friction, etc. BLDC motors are optimized for smooth torque between steps, not repeatability.
Stepper motors are designed to maximize holding torque, the stepper's ability to hold the mechanical load at one of the steps. This is accomplished by keeping the winding current high even though the rotor is aligned with the stator. This wastes a lot of energy, because it generates no torque unless the load tries to turn out of position, but it does avoid the need for any feedback mechanism.
Grâce à ce composant plus silencieux et à très basse consommation énergétique, le fabricant de moteurs électriques pour l'électroménager a décroché ces derniers mois d'importantes commandes à l'export....
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