Physics Current Electricity DC Motor DC Motor A DC motor is an electrical machine that converts electrical energy into mechanical energy. In a DC motor, the input electrical energy is the direct current which is transformed into the mechanical rotation. In this session, let us know what is a DC motor, types of DC motor and their applications. A DC motor is composed of the following main parts: Field coil or stator This is a non-moving part of the magnetic circuit on which a winding is wound in order to produce a magnetic field. The electro-magnet that is created has a cylindrical cavity between its poles. Armature or rotor
Working Principle of DC Motor StudyElectrical Online Electrical Engineering Learning Site
A DC motor is an electrical motor that uses direct current (DC) to produce mechanical force. The most common types rely on magnetic forces produced by currents in the coils. Nearly all types of DC motors have some internal mechanism, either electromechanical or electronic, to periodically change the direction of current in part of the motor. A Yoke. Poles. Field windings. Armature windings. Commutator. Brushes. A stator is the static part of the DC machine that houses the field windings and receives the supply. A rotor is the rotating part of the DC machine that brings about the mechanical rotations. All these parts put together make up the total construction of a DC motor. Understanding the operation of the DC motor is very simple from a basic diagram is shown below. DC motor basically consists of two main parts. The rotating part is called the rotor and the stationary part is also called the stator. The rotor rotates with respect to the stator. The DC motor diagram shows the most important components of the device. It consists of the Armature (rotating part), the yoke, field windings, carbon brushes, and the commutator. Stator The stator is the DC motor's stationary component. Its primary function is to serve as the device's solid outer frame and to generate a magnetic field.
DC Motor Working Principle StudiousGuy
In your house, almost every mechanical movement that you see around you is caused by an AC (alternating current) or DC (direct current) electric motor. In this article we'll look at both types. By understanding how a motor works you can learn a lot about magnets, electromagnets and electricity in general. 4 Learn how a DC motor works to understand the basic working principle of a DC motor. We consider conventional current, electron flow, the winding, armature, rotor, shaft, stator, brushes, brush arms, terminals, emf, electromagnets, magnetic attraction as well as detailed animations for how the dc motor works. DC Direct Current Motor Types and Connections The illustrations below schematically show the different methods of connecting the field and armature circuits in a DC motor. The circular symbol represents the armature circuit, and the squares at the side of the circle represent the brush commutator system. For more on DC motor control, see this lab for single-direction control, or this lab for controlling a motor in two directions with an H-Bridge.. Gearhead Motor. Gearhead motors are a subset of DC motors. Figure 7 is a drawing of a gearhead motor. They have a box on the top of the motors containing a series of gears that slow the rotational speed of the motor down and increase the torque.
8 Different DC Motor Parts, Structure, Design and Advantages + PDF Linquip
Field-Oriented Motor Control (FOC): Bridging the Gap Between DC and PMS Motors. In-depth electrical analysis of the Direct Current (DC) Motors highlights the capability to control the excitation of both stator and rotor independently. This independent control mechanism ensures that torque generation and magnetic flux can be distinctly adjusted. A simple way to control the speed of a DC motor is to regulate the supply voltage with pulse width modulation (PWM). Pulse Width Modulation (PWM) The basic idea behind PWM is that it switches the supply voltage ON and OFF very quickly. By adjusting the length of the ON/OFF pulses, we can set the voltage to anywhere between 0V and the maximum.
This article mainly covers DC Motor Construction and its Parts with labelled diagrams. Furthermore, a cutaway view of the DC Motor is presented and discussed in detail. The main parts of a typical DC motor are: field frame or yoke end-shields and bearings field poles field coils armature and commutator brush gear and brushes. DC Series Motor : Circuit Diagram, Characteristics and Its Applications DC Series Motor Working and Its Applications There are two types of DC motors based on the construction such as self-excited, and separately excited. Similarly, self-excited motors classified into three types namely DC series motor, DC shunt motor, and DC compound motor.
Draw a labelled diagram of DC motor.
Working of DC Motor. Being in the magnetic field of the magnet, each current carrying conductor (A and B) of the armature coil experiences a force which ultimately results into rotation ofthe armature coil. To understand how unidirectional torque is produced in a dc motor, consider the armature coil in its different positions as shown in Fig. 2. A DC motor is an electromechanical energy conversion device, which converts electrical energy input into the mechanical energy output. The operation of the DC motor is based on the principle that when a current carrying conductor is placed in a magnetic field, a mechanical force acts on the conductor. The magnitude of the force is given by,
