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dc motor working and construction

An introduction to electric motors

Brush DC motor summary • The magnetic field intensity is proportional to the current forced into the motor leads. • The magnetic field rotation is automatically obtained commutating the active coil through mechanical switches (brushes). • The load angle is almost constant and it is about 90°allowing the maximum efficiency[...]

Working Principle of a DC Motor - Circuit Globe

Working Principle of a DC Motor The DC motor is the device which converts the direct current into the mechanical work. It works on the principle of Lorentz Law, which states that "the current carrying conductor placed in a magnetic and electric field experience a force". And that force is …[...]


4 DC Motors 4.3.3 Principle of operation Consider a coil in a magnetic field of flux density B (figure 4). When the two ends of the coil are connected across a DC voltage source, current I flows through it. A force is exerted on the coil as a result of the interaction of magnetic field and electric current.[...]

Working or Operating Principle of DC Motor | Electrical4U

Jul 11, 2019· The DC motor is of vital importance for the industry today and is equally important for engineers to look into the working principle of DC motor in details that we have discussed in this article. To understand the operating principle of DC motor we …[...]

Servo Motor - Types, Working Principle & Applications

Mar 28, 2019· Servo Motor Working Principle. A unique design for servo motors are proposed in controlling the robotics and for control applications. They are basically used to adjust the speed control at high torques and accurate positioning.[...]

DC Shunt Motor : Construction, Circuit Diagram, and Its ...

DC Shunt Motor Construction and Working Principle. The DC shunt motor construction is the same as any type of DC motor.This motor can be constructed with the basic parts like field windings (stator), a commutator and an armature (rotor).. The working principle of a DC Shunt Motor is, whenever a DC motor is turned ON, then DC flows throughout stator as well as the rotor.[...]

Construction of DC Motor (Parts & Images) | Electrical4U

Jan 16, 2019· Poles of DC Motor. The magnetic poles of DC motor are structures fitted onto the inner wall of the yoke with screws. The construction of magnetic poles basically comprises of two parts. Namely, the pole core and the pole shoe stacked together …[...]

Construction and Principle of Operation of DC Series Motor

DC series motor works on the direct current converting electrical energy to mechanical energy. It works on the principle of generation of rotational motion when a conductor placed in magnetic field carries current. The interaction of the generated magnetic field and external magnetic field results in the rotational movement. In this motor field winding is placed in series to the armature.[...]

Servo Motor Basics, Working Principle & Theory

A servo motor is an electrical device which can push or rotate an object with great precision. If you want to rotate and object at some specific angles or distance, then you use servo motor. It is just made up of simple motor which run through servo mechanism.[...]

Brushless DC Motor - Construction, Working Principle and ...

May 18, 2016· What is a Brushless DC or BLDC Motor? A Brushless DC Motor, BLDC accomplishes commutation electronically using rotor position feedback to determine when to switch the current. The BLDC motor is electrically commutated by power switches instead of brushes. The structure of Brushless DC Motor, BLDC is shown in figure below. In simple words, a […][...]

DC Motors -- principles of operation - Solarbotics.net

DC Motors How they work, in 4 parts -- 12 November, 2001. ... The internal configuration of a DC motor is designed to harness the magnetic interaction between a current-carrying conductor and an external magnetic field to generate rotational motion. Let's start by looking at a simple 2-pole DC electric motor ...[...]

Brushless DC Motor (BLDC) – Construction, Working ...

A DC motor is an electrical machine which converts electrical energy into mechanical energy. The working of DC motor is based on the principle that when a current carrying conductor is placed in a magnetic field, it experiences a mechanical force. The direction of the mechanical force is given by Fleming's Left-hand Rule and its […][...]

Construction of DC Motor | Electrical Concepts

Jul 05, 2018· DC motor is an electromagnetic device which converts electrical energy into mechanical energy. DC power input is converted into mechanical power at the shaft motor. This article describes the construction of DC motor. There is no difference in the construction of DC Motor and Generator. A DC Motor can also be used as DC generator […][...]

Stepper Motors - Introduction and Working Principle ...

Stepper motor is a specially designed DC motor that can be driven by giving excitation pulses to the phase windings. They cannot be driven by just connecting the positive and negative leads of the power supply. They are driven by a stepping sequence which is generated by a controller. The...[...]

Brushless Dc motor (Principle, Construction, Types and ...

Construction of brushless Dc motor: We can say that brushless motor has the same construction of Ac induction motor and brushed Dc motor; like all other motors, there is a stator and a rotor. The stator: The stator of this motor made of laminated steel stacked up to carry the windings which may be arranged in star (Y) or delta (∆) pattern.[...]

Three Phase Induction Motor Construction & Working Principle

Construction of Three Phase Induction Motor: Figure 8.1 shows the construction of three phase induction motor.A 3 phase induction motor has two main parts (i) stator and (ii) rotor.The rotor is separated from the stator by a small air-gap which ranges from 0.4 mm to 4 mm, depending on the power of the motor.[...]


THEORY, CONSTRUCTION, AND OPERATION 1. CHAPTER 1 PRINCIPLES OF OPERATION ... belongs to the family of electric rotating machines. Other members of the family are the direct-current (dc) motor or generator, the induction motor or generator, and a number ... direct-current (dc) electric power. The dc can be considered a particular case of[...]

How a DC motor works? | electricaleasy.com

The same DC machine can be used as a motor or generator. Therefore, theoretically, construction of a DC motor is same as that of a DC generator. Working principle of a DC motor An electric motor is an electrical machine which converts electrical energy into mechanical energy. The basic working principle of a DC motor is: "whenever a current carrying conductor is placed in a magnetic field, it ...[...]

Working principal of DC Motor: Construction of DC Motor

A DC Motor like we all know is a device that deals in the conversion of Electrical energy to mechanical energy and this is essentially brought about by two major parts required for the construction of dc motor…[...]

Brushless DC Motors – Part I: Construction and Operating ...

Comparison with Induction and Brushed DC motors; Selection criteria for a BLDC motor; Motor control – Speed, Position and Torque, to be covered in Part II of this article. Construction. BLDC motors have many similarities to AC induction motors and brushed DC motors in terms of construction and working principles respectively.[...]

Construction and Principle of Operation of the Shunt DC Motor

The DC Shunt-wound motor, running on Direct current, has its field windings placed in parallel to the armature. In Electrical terms, parallel is generally denoted as shunt. That is the reason behind naming it a DC Shunt motor. Same voltage is applied to both shunt winding and armature in this motor. This parallel configuration allows independent path of current for field winding and armature.[...]

The Construction of AC Motors | WorldWide Electric

Oct 13, 2017· • the purpose of AC motors • NEMA standards for electrical equipment, and • the basic concept of torque, speed, and horsepower. We'll now discuss the construction of AC motors so you will be able to identify key differences of motor parts and how each product works for any given application. Construction of AC Motors[...]

Construction and working of DC motor? - Answers.com

since the physical construction of a DC motor and DC generator is the same,it can work either way.in other words,yes a DC motor can work as a DC generator(if you drive it by a primemover it will ...[...]

PMDC Motor: Construction, Working and Applications

DC motors are classified into different types which work on the same principle. Thus, the DC motor construction can be done by establishing a magnetic field with any kind of magnet like electromagnet otherwise a permanent magnet. A PMDC (Permanent Magnet DC motor) is a kind of DC motor that includes a permanent magnet to form the magnetic field ...[...]

DC Motors - University of Rajshahi

DC Motors Although ac motors are used in most of the cases, DC motors have many applications and used for multi-purpose applications. DC Motor Principle A machine that converts dc power into mechanical energy is known as dc motor. Its operation is based on the principle that when a current carrying conductor is placed in a[...]

Construction of Dc motor (all parts of dc motor in details)

Construction of Dc motor. Construction of Dc motor nearly looks like the construction of Dc generator, originally when the Dc machine starts working we can't identify whether it's a Dc generator or motor, briefly Dc motor consists of: Stator: it's the stationary part containing the field winding and receives the supply.[...]

Brushed DC electric motor - Wikipedia

A brushed DC electric motor is an internally commutated electric motor designed to be run from a direct current power source. 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 to operate motors in commercial and industrial buildings.[...]

Construction of DC Machine (Generator & Motor)

The dc generators and dc motors have the same general construction. In fact, when the machine is being assembled, the workmen usually do not know whether it is a dc generator or motor. Any dc generator can be run as a dc motor and vice-versa. Read: Working of DC Motor Save All dc …[...]

DC motor - Wikipedia

A DC motor's speed can be controlled over a wide range, using either a variable supply voltage or by changing the strength of current in its field windings. Small DC motors are used in tools, toys, and appliances. The universal motor can operate on direct current but is a lightweight brushed motor used for portable power tools and appliances ...[...]

Dc motor - SlideShare

Nov 20, 2012· Dc motor 1. DC MOTOR 2. INDEX• HISTORY & INTRODUCTION OF THE DC MOTOR• CONSTRUCTION OF DC MOTOR• TYPES OF DC MOTOR• WORKING OF DC MOTOR• MERITS & DEMERITS OF DC MOTOR 3. Brief History of DC Motor• The history of DC Motor can be traced back to the 1830s,when Michael Faraday did extensive works on disc type of machine 4.[...]