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What Is the Big Deal About Closed Loop?


Closed Loop in the vernacular of motor speed control involves the verification of the motor’s actual speed back to the drive, for automatic adjustment to maintain constant speed under changing motor load, ambient and drive supply voltage conditions. Phew! So what is the big deal about closed loop? There are many applications where speed accuracy … Continued

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The Least Understood Critical Component


The explosion of motor use in retail and commercial products is staggering.  Example – a luxury automobile today may use as many as 120 electric motors!  Stop and think about all the items in your home that have a motor – your toothbrush, kid’s Lego set, garage door, window shades, Roomba vacuum, pet food dispenser, … Continued

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DC Motors: Why and How Brushless is Better


No matter the application, when it comes to motor technology there are several options. Within DC technology one of the first—and biggest—decisions is whether to choose a brushed or brushless DC motor. More and more designers are choosing brushless DC (BLDC) motors for a variety of reasons, as this option has become more economically feasible … Continued

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AC Or DC Drive- Which is Best for Small Motors?


Variable speed motor controls (‘drives’) have been around for many decades.  In the early years, application and budget were the primary decision criteria for choosing between a DC motor/drive package and AC equivalent.  While this practice continues, the advances in AC drive technology have made the decision more complex to where either AC or DC … Continued

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Keeping Up With Changing Drive Technology


One of the hallmarks of Dart Controls and its ability to remain a leading supplier of small drives to the market is its success incorporating new technology into its product designs.  Customer needs are constantly changing and thus the requirements of the products they use.  These requirements include better speed regulation, less energy waste, tougher … Continued

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