Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

There is a close relationship between the rotor resistance of induction motor and its starting torque. Starting torque refers to the torque generated when the motor is started in a static state, which is an important indicator to measure the starting performance of the motor. The following is a detailed explanation of the relationship between rotor resistance and starting torque:Equivalent circuit model at startupIn order to understand the effect of rotor resistance on starting torque, it is fir

Motor definitionAn electric motor is a device that converts electrical energy into mechanical energy.Classified by power supply typeDirect current motorAn electric motor using a DC power supply.Type Series-Wound: With series-wound winding, suitable for applications requiring large starting torques. Shunt-Wound: With parallel winding, it is suitable for applications requiring constant speed operation. Compound Wound: combines the characteristics of series excitation and shunt excitation, both hig

What is the Operating Principle of DC Motor?DC Motor DefinitionA DC motor is defined as a device that converts direct electrical energy into mechanical energy using magnetic fields and electrical currents.DC motors play a crucial role in modern industry. Understanding the working principle of a DC motor, which we explore in this article, begins with its fundamental single loop construction.The very basic construction of a DC motor contains a current carrying armature, connected to the supply end

What is the Torque Equation of DC Motor?Torque DefinitionTorque in a DC motor is defined as the force’s tendency to cause or change rotational motion.When a DC machine is loaded either as a motor or as a generator, the rotor conductors carry current. These conductors lie in the magnetic field of the air gap.Thus each conductor experiences a force. The conductors lie near the surface of the rotor at a common radius from its center. Hence torque is produced at the circumference of the rotor and ro

Servo Motor DefinitionA servo motor is defined as a motor that operates on the principle of a servomechanism, crucial for precise position control.Robotics ApplicationsOne of the most popular applications of servo motors is in robotics. For example, a pick and place robot uses servo motors to pick an object from one position and place it in another. This precise movement is essential for the robot’s functionality.Now, in order to pick an object from position A and place it in position B the moto

What is a Servo Motor Controller ?Servo Motor Controller DefinitionA servo motor controller (or servo motor driver) is defined as a circuit used to control the position of a servo motor.Servo Motor Driver CircuitThe servo motor driver circuit includes a micro-controller, power supply, potentiometer, and connectors, ensuring precise motor control.Micro-controller RoleThe micro-controller generates PWM pulses at specific intervals to control the servo motor’s position accurately.Power SupplyThe po

Braking of DC Motor DefinitionElectrical braking stops a DC motor by controlling voltage and current instead of using mechanical friction.Regenerative BrakingIt is a form of braking in which the kinetic energy of the motor is returned to the power supply system. This type of braking is possible when the driven load forces the motor to run at a speed higher than its no-load speed with a constant excitation.The motor back emf Eb is greater than the supply voltage V, which reverses the direction of

Servo Motor Control: A Complete GuideKey learnings:Servo Motor Control Defined: Servo motor control allows precise manipulation of motor position, speed, and acceleration through electronic signals.Feedback Mechanism: The feedback system, often a potentiometer or encoder, ensures the motor’s output matches the control input precisely.PWM Signal: Pulse-width modulation (PWM) is crucial for setting the servo’s position by varying the duration of electrical pulses.Arduino and Servo Motors: Using an

Servo Motor: Definition, Working Principle, and ApplicationsKey learnings:Servo Motor Definition: A servo motor is defined as an electric motor that provides precise control of angular or linear position, speed, and torque using a feedback loop system.Control Systems: The servo motor utilizes advanced control systems like PID and fuzzy logic to adjust movement according to input and feedback signals for optimal performance.Types of Motors: Different types include AC and DC servo motors, with sub

What is a Stepper Motor Driver?Stepper Motor Driver DefinitionA stepper motor driver is defined as a circuit used to drive or run a stepper motor, consisting of a controller, a driver, and motor connections.Essential Components Controller (essentially a microcontroller or a microprocessor) A driver IC to handle the motor current A power supply unitStepper Motor ControllerThe selection of a controller is the first step to building a driver. It must have a minimum of 4 output pins for the stepper.