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www.brighthubengineering.com/machine-design/125535-guide...

We need not to rely on the conventional motors for all our work, and depending upon the type of work we want our machine to perform, we can select an AC or DC motor accordingly. Through the articles listed in this section, we will find detailed information about the working theory and operation of different types of AC and DC motors.

www.electrical4u.com/working-or-operating-principle-of-dc...

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 need to first look into its single loop constructional feature.

geosci.uchicago.edu/~moyer/GEOS24705/Readings/Klempner_Ch1.pdf

THEORY, CONSTRUCTION, AND OPERATION 1. CHAPTER 1 PRINCIPLES OF OPERATION OF SYNCHRONOUS MACHINES The synchronous electrical generator (also called alternator) 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

pcbheaven.com/wikipages/How_Brushless_Motors_Work

A brushless motor has yet another major difference from the brushed motors. In the theory of operation of the brushed DC motors with permanent magnets, i explain how the commutator is made and how the coils changes polarity during rotation. But brushless motors have no commutator nor brushes.

en.wikipedia.org/wiki/Talk:Brushless_DC_electric_motor

There should be a section on the theory of operation. ... Is a "brushless DC electric motor" is composed of a variable-frequency drive or a electronic speed control, and a 3 phase "brushless AC electric motor" -- the VFD/ESC converts DC power into 3 phase AC power, ...

www.johnsonelectric.com/.../dc-motors/principle-of-operation

DC Motors: Principle of Operation. Electric motors run by electromagnetism. However, there are also other types of motors that utilize electrostatic forces or piezoelectric effect. In the case of a PMDC {Permanent Magnet DC) motor, motion is produced by an electromagnet (armature) interacting with a fixed field magnet (housing assembly).

www.electricaleasy.com/2014/01/basic-working-of-dc-motor.html

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...

www.brighthubengineering.com/diy-electronics-devices/...

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.

www.allaboutcircuits.com/worksheets/dc-motor-theory

DC Motor Theory DC Electric Circuits. Question 1. If the ends of a wire loop are attached to two half-circular metal strips, arranged so that the two strips almost form a complete circle, and those strips are contacted by two “brushes” which connect to opposite poles of a battery, which way will the wire loop rotate? ...

www.chris-joyce.com/static/PDFs/E-M_proj.pdf

Brushed DC Motor Theory and Operation Chris Joyce, Shane Skikne, Evan Simpson, James Nee January 8, 2014 Abstract This study looked into the e ect of changing the material within the rotor of an electric motor. In a brushed DC motor, the coils on the rotor utilize the motor’s magnetic eld to create torque on the axle. Within