Sponsored by GAM. Imagine a small child trying to push a full-size adult in a shopping cart. It’s possible to get the cart ...

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 ...

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 ...

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 ...

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 ...

Torque demand is one of the first factors to consider, encompassing nominal torque, acceleration torque, and emergency torque ...

One of the challenges that face motion-control engineers is how to properly select a motor. If the motor is undersized or too small, it will not handle load. If the motor is oversized or too large, ...

The operating efficiency of linear drives is of growing concern to machine designers. Here's a look at three common linear actuators — linear induction motors, rolled and ground ball screws, and rack ...

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 ...

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 ...