LINMOT motor Germany LINMOT model LINMOT price

LINMOT motors are machines used to convert between mechanical energy and AC electrical energy. Due to the significant development of AC power systems, AC motors have become the most commonly used motors. Compared with DC motors, AC motors have a simpler structure, are easier to manufacture, and are more robust because they lack commutators (see commutation in DC motors). They can be readily designed for high speed, high voltage, high current, and large capacity. The power range of AC motors is extensive, from a few watts to hundreds of thousands of kilowatts, or even over one million kilowatts. In the early 80s of the 20th century, the largest steam turbine generators had reached 150 ten thousand kilowatts.

LINMOT motor classification

A motor is a machine that converts mechanical energy into DC electrical energy. It primarily serves as a DC power source for DC motors, electrolysis, electroplating, electric smelting, battery charging, and excitation power for AC generators. Although power rectification components are used to convert AC to DC where DC power is required, AC rectified power supplies cannot completely replace DC generators in terms of certain performance characteristics. A rotating device that converts DC electrical energy into mechanical energy. The stator provides the magnetic field, the DC power supply provides current to the rotor windings, and the commutator ensures the torque generated by the rotor current and magnetic field maintains a constant direction. DC motors can be classified into two types based on whether they are equipped with common brush-commutator assemblies: brushed DC motors and brushless DC motors. Brushless DC motors are a new type of DC motor that has developed in recent years with advancements in microprocessor technology, the application of new power electronic devices with high switching frequencies and low power consumption, optimization of control methods, and the emergence of low-cost, high-energy-level permanent magnet materials. Brushless DC motors retain the good speed regulation performance of traditional DC motors while offering advantages such as no sliding contact or commutation sparks, high reliability, long service life, and low noise. Consequently, they are widely used in aerospace, CNC machine tools, robotics, electric vehicles, computer peripherals, and household appliances. Based on the power supply method, brushless DC motors can be further divided into two categories: square-wave brushless DC motors, where both the back EMF waveform and supply current waveform are rectangular waves (also known as rectangular wave permanent magnet synchronous motors); and sine-wave brushless DC motors, where both the back EMF waveform and supply current waveform are sinusoidal.

LINMOT motor mechanical characteristics

Motors serve as actuators in automatic control devices. For each input pulse signal, a stepper motor advances one step, hence it is also called a pulse motor. Stepper motors are widely used in peripheral equipment for digital computers, as well as in printers, plotters, and disk drives. The drive power supply for a stepper motor consists of a variable-frequency pulse signal source, a pulse distributor, and a pulse amplifier, which provide pulse currents to the motor windings. The operating performance of a stepper motor depends on the proper matching between the motor and its drive power supply. Advantages of stepper motors include no cumulative error, simple structure, ease of use and maintenance, and low manufacturing cost. They have a high capability to drive load inertia and are suitable for small and medium-sized machine tools and applications with less stringent speed precision requirements. Disadvantages include lower efficiency, significant heat generation, and occasional loss of steps.

LINMOT motor braking methods

A motor is an AC motor equipped with brushes and a commutator. Some series-wound motors can be powered by either AC or DC and are referred to as universal motors. They are named for their series-connected field and armature windings. The structure of a single-phase series-wound motor is very similar to that of a DC series-wound motor. The main difference is that the stator core of a single-phase series-wound motor must be laminated from silicon steel sheets, whereas the poles of a DC motor can be either laminated or made as a solid structure. The principle by which a single-phase AC series-wound motor generates rotating torque is similar to that of a DC series-wound motor and can be explained using the operating principles of DC motors. In a single-phase series-wound motor, the stator winding is connected in series with the armature winding. The direction of rotation depends on the direction of the electromagnetic torque and the current. Therefore, when operating on an AC power supply, as the polarity alternates, the polarity of the stator magnetic field and the direction of the rotor current (or its generated magnetic field) change simultaneously. According to the left-hand rule, the direction of the electromagnetic force remains unchanged, allowing the series-wound motor to maintain a constant direction of rotation. When energized in the forward direction, the electromagnetic torque is counterclockwise. If the positive and negative polarities of the power supply are reversed, both the excitation flux and the armature current direction change simultaneously, but the electromagnetic torque direction remains counterclockwise. Thus, the motor's direction of rotation does not change; that is, the electromagnetic torque and rotation direction of a single-phase AC series-wound motor do not vary with changes in power supply polarity.

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