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servo motor implies a motor with closed loop control they can be ac or dc
and generally have a tach built in.
stepper motors have a permanent magnet in the rotor so its not necessary to use power to set up the magnetic field
permanent magnet motors are more efficient
efficiency has to do with the gap rotor to stator
and the amount of iron and copper in the motor
150 year old dc motors are about 50% more efficient then anything produced today
modern materials like epoxy fiberglass insulation allow temperatures to reach 700 degrees F inside the windings where the old cotton or paper covered wire would catch on fire
so if you see an old 10HP motor the size of an oil drum chances are its far more efficient than a new one the size of a milk bottle
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What is the difference between simple dc motor and servo motor?
DC motor : -DC (Direct Current) Motors are two wire (power & ground), continuous rotation motors. -The speed of DC motors is controlled using pulse width modulation (PWM), a technique of rapidly pulsing the power on and off. The percentage of time spent cycling the on/off ratio determines the speed of the motor, e.g. if the power is cycled at 50% (half on, half off), then the motor will spin at half the speed of 100% (fully on). Each pulse is so rapid that the motor appears to be continuously spinning with no stuttering. Servo Motor : -Servo motors are generally an assembly of four things: a DC motor, a gearing set, a control circuit and a position-sensor (usually a potentiometer). -The position of servo motors can be controlled more precisely than those of standard DC motors, and they usually have three wires (power, ground &). Power to servo motors is constantly applied, with the servo control circuit regulating the draw to drive the motor. -PWM is used for the control signal of servo motors. However, unlike DC motors it's the duration of the positive pulse that determines the position, rather than speed, of the servo shaft.
What is EFF 1 motor?
EFF 1 is an abreviated name to classify a specific type of engine believed to be more energy efficient!
Which amplifier has more efficiency than class b amplifier?
Class C amplifier.. A class D amplifier is more efficient than class B, and is more efficient than class C as well.
What is more efficient to run a pool pump on 120 Volt or 240 Volt?
240
Can you use a 24VDC-100RPM motor as wind generator?
All DC Motors can generate electricity according to their size & input volt. 24 volt DC Motor is best for generate electricity. Even you can generate up to 24 volt AC. The big size of Motor is also depends to generate more ampere (current). Remember 24 volt DC Motor which have less RPM without gear is better & efficient for generate electricity than having the more RPM (Round Per Minute). So try it & generate electricity. (for further information, feel free to ask any thing regarding electricity, "admnpmiu_tariq@yahoo.com")
Is a bipolar stepper motor more efficient than a unipolar motor?
The efficiency of a bipolar stepper motor compared to a unipolar motor has to be determined by the individual. If you are using the motor in a high speed situation, the unipolar motor is more efficient in those situations. For lower speed situations, the bipolar stepper motor is more efficient. Unipolar motors will have less torque at lower speeds, while bipolar motors will have less torque at higher speeds. A full explanation with diagrams is available on the website: http://www.nmbtc.com/step-motors/engineering/drivers-and-winding-configuration.html
Is a stepper motor easier to maintain than a normal ac motor?
A stepper motor is more easier to maintain than a normal ac motor. Ac motor is a seal motor under pressure. A stepper can easliy be open and the interwheels can be fixed and cleaned.
What is the type of motor used in hard disk drive?
stepper motor No. it is not a stepper. It is a Brushless DC (BLDC) motor. See related link for more information on this motor.
Would Stepper motor gives precise angular motion?
A: Stepper motor will move one gradient per pulse the more there are gradients the more accuracy can be achieved
Difference between a bipolar and unipolar stepper motor?
There are two different winding configurations for stepper motors. A unipolar stepper motor has one winding coil and a center tap which is activated for proper frequency. The bipolar stepper motor is more complex since the winding motion must be reversed to get the proper frequency.
What is the difference between servo motor and dc motor?
DC motor : -DC (Direct Current) Motors are two wire (power & ground), continuous rotation motors. -The speed of DC motors is controlled using pulse width modulation (PWM), a technique of rapidly pulsing the power on and off. The percentage of time spent cycling the on/off ratio determines the speed of the motor, e.g. if the power is cycled at 50% (half on, half off), then the motor will spin at half the speed of 100% (fully on). Each pulse is so rapid that the motor appears to be continuously spinning with no stuttering. Servo Motor : -Servo motors are generally an assembly of four things: a DC motor, a gearing set, a control circuit and a position-sensor (usually a potentiometer). -The position of servo motors can be controlled more precisely than those of standard DC motors, and they usually have three wires (power, ground &). Power to servo motors is constantly applied, with the servo control circuit regulating the draw to drive the motor. -PWM is used for the control signal of servo motors. However, unlike DC motors it's the duration of the positive pulse that determines the position, rather than speed, of the servo shaft.
What is the difference between a DC motor a servomotor and a stepper motor?
DC motor-DC (Direct Current) Motors are two wire (power & ground), continuous rotation motors.-The speed of DC motors is controlled using pulse width modulation (PWM), a technique of rapidly pulsing the power on and off. The percentage of time spent cycling the on/off ratio determines the speed of the motor, e.g. if the power is cycled at 50% (half on, half off), then the motor will spin at half the speed of 100% (fully on). Each pulse is so rapid that the motor appears to be continuously spinning with no stuttering.Servo Motor:-Servo motors are generally an assembly of four things: a DC motor, a gearing set, a control circuit and a position-sensor (usually a potentiometer).-The position of servo motors can be controlled more precisely than those of standard DC motors, and they usually have three wires (power, ground &). Power to servo motors is constantly applied, with the servo control circuit regulating the draw to drive the motor.-PWM is used for the control signal of servo motors. However, unlike DC motors it's the duration of the positive pulse that determines the position, rather than speed, of the servo shaft.Stepper Motor:-Stepper motors utilizes multiple toothed electromagnets arranged around a central gear to define position.-Stepper motors require an external control circuit or micro controller (e.g. a Raspberry Pi or Arduino) to individually energize each electromagnet and make the motor shaft turn.
Is it advisable to use a separate micro-controller for servo motor controller of a robot rather than using only one micro-controller for the whole system and why?
Yes, most MCU's can not multi task it can run only one program at a time, so if you run a stepperor servo motor from one MCU it will slow down the whole program so, if you have send the command from the main MCU to the other one that is controlling the stepper or servo the main MCU can go on doing other things while the stepper MCU can take its time taking the stepper motor thru its paces If you have to run more than one stepper and using only one MCU, the MCU will have to drive the one stepper with one pulse and then the next stepper, you don't need a large MCU to drive a stepper only 4 bits is needed a 8 pin PIC like the PIC12F675 is all you need, GP0 to GP3 can drive the stepper while the chip can receive commands on GP5 that is a input pin only ,then you still have GP4 spare to drive a LED or a relay or you can use it as a DTR to send an interrupt to the main MCU and tell it that its done with the last command and ready for the next. A string of commands can be received by the 12F675 in serie on one pin and be stored in onboard EEPROM for use as needed
What is a common use for a stepper motor?
Applications of Stepper Motor: Computer-controlled stepper motors are one of the most versatile forms of positioning systems. They are typically digitally controlled as part of an open loop system, and are simpler and more rugged than closed loop servo systems. Industrial applications are in high speed pick and place equipment and multi-axis machine CNC machines often directly driving lead screws or ballscrews. In the field of lasers and optics they are frequently used in precision positioning equipment such as linear actuators, linear stages, rotation stages, goniometers, and mirror mounts. Other uses are in packaging machinery, and positioning of valve pilot stages for fluid control systems. Commercially, stepper motors are used in floppy disk drives, flatbed scanners, computer printers, plotters, slot machines, and many more devices. Some people looking for generators for homemade Wind Turbines found success in using stepper motors for generating power.
who is more efficient dc motor or ac motor and why?
DC motors are generally more efficient than AC motors. DC motors have a lower amount of inertial associated with them, making them more efficient to run.
Does a stepper hill have more kinetic energy?
i think a stepper hill has more kinetic energy
What is the difference between - bipolar and uni polar stepper motor?
The main difference between bipolar and unipolar stepper motors lies in their coil configuration. Bipolar stepper motors have two separate coil windings per phase, allowing current reversal in the coils, while unipolar stepper motors have center-tapped coils which can be energized in one direction only. This means that bipolar motors have stronger torque but require more complex control circuits, while unipolar motors are easier to control but have lower torque output.
