What is a DC motor and its types

DC motors are brilliant electrical devices that have revolutionized people's lives in many different ways, but who invented the DC motor? Like all other innovations, a lot of people made a difference by developing other devices. In the United States, Thomas Davenport was the inventor of the first electric motor, and in 1837 Davenport was the first to patent a usable electric motor, however, Davenport did not Not the first to make a motor this way, as other inventors in Europe have developed more powerful motors earlier. Davenport is credited as the original inventor because he patented it earlier, in 1834 Jacobi Moritz had proposed a higher Power of the motor (three times the power). A year later, Sibrandus Statingh and Christopher Becker showed the motor in action.

The follow is the list

• Types of DC Motor Controllers and DC Motor Controls

• When it comes to DC motor control, the following are the most commonly used methods:

Types of DC Motor Controllers and DC Motor Controls

Brushless DC Motor

Also known as synchronous DC motors or electronically commutated motors, the main difference between these types of motors is that they lack a commutator, which is replaced by a servo that can detect and then adjust the angle of the rotor, brushless DC motors are robust and safe.

Brushed DC Motor

These are the earliest DC motors, dating back to the motor's original design, and while they are still popular in paper machines, cranes, and rolling mills, they have faded more recently.

Parallel DC Motor

This is a brushed motor with the field winding in parallel with the armature, they have lower current due to the parallel winding, parallel motors find many uses in a variety of applications where constant torque is required, mixers, conveyor belts and cranes are the most depend on them.

Series DC Motors

These are the ultimate breed, the field windings connected in series distinguish them from parallel motors, which means that the armature current does flow through the field windings, resulting in faster speeds, series DC motors are tasks that require high starting torque Ideal.

When it comes to DC motor control, the following are the most commonly used methods:

Direction controller: H-bridge

An H-bridge circuit is one of the easiest ways to control a DC motor, four switches controlled in pairs can be found within such a motor, when either of the two pairs is closed, they immediately complete the circuit and subsequently power the motor, H The bridge can also control the speed.

Speed Controller: Pulse Width Modulation (PWM)

The PWM circuit changes the speed of the motor by simulating the increase or decrease of the power supply. PWM is easy to apply and inexpensive, which is one aspect of the motor speed that can be continuously controlled. These controllers work by sending periodic pulses to the motor, as if the motor is powered by high or low voltage when using the coil inductance of the regular pulses to bring a certain constrained smoothing effect.

Armature Controller: Variable Resistor

This is another way to affect the speed of a DC motor, the current fed through the armature or field coil changes. When the coil current changes, the speed of the output shaft also changes, and the variable resistor can change the current, which can increase the speed.

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