The moment of inertia of the load is a key measure for sizing and tuning servomotors. Traditional sizing methods use mathematical equations to accurately estimate the inertia of the load based on ...

Oversizing often happens when engineers try to match the inertia between the load and the motor rotor, so that they can tune the drive’s velocity, torque or position loop relatively tightly to meet ...

This article was updated Feb. 20, 2023. It was originally published March 2, 2011. Engineers are constantly called on to select motors for the applications that will be able to do the task at hand and ...

Size plays a key role in miniaturization and automation, where smaller is usually better. Conventional electromagnetic motors have certain restrictions when it comes to reducing dimensions while ...

Servo systems may be direct drive or geared. For gearedsystems, the motor selection also involves a choiceof gear ratio. Figure 1 shows a motor connected to aload through an ideal (that is, no ...

Servo motor sizing is the process of selecting the best motor for a servo application. Misconceptions engineers can fall into when selecting a motor include: sizing based on the horsepower rating of ...

Here’s how power losses and inertia matching affect the efficiency of linear drives. The operating efficiency of linear drives is of growing concern to machine designers. Here's a look at three common ...

The smart motor control module—MMP757188-36 in this example—validates the results. Figure 2 The MMP757188-36 is a motor control module for smart motor applications. Source: Monolithic Power Systems ...

Some carefully selected analogies might make the reasons for this clearer. Is it easier or harder to control the speed of a motor cycle or a heavily loaded truck? Most people would correctly surmise ...

1. Don't fear servos. There are many different levels of positioning and motor controls now. Some basic variable frequency drives can even be used to do what could have been done only with coordinated ...