{"id":67,"date":"2020-06-22T22:11:33","date_gmt":"2020-06-23T05:11:33","guid":{"rendered":"http:\/\/blog.circuitspecialists.com\/?p=67"},"modified":"2021-02-12T12:52:09","modified_gmt":"2021-02-12T19:52:09","slug":"stepper-motor-power-supplies","status":"publish","type":"post","link":"https:\/\/www.circuitspecialists.com\/blog\/stepper-motor-power-supplies\/","title":{"rendered":"Choosing a Stepper Motor Power Supply"},"content":{"rendered":"\n<p>Some people may consider the&nbsp;<a title=\"stepper motors\" href=\"https:\/\/www.circuitspecialists.com\/stepper-motor\">stepper motor<\/a>&nbsp;to be a bit more complex than a&nbsp;standard DC motor. This may be true to a degree, however stepper motors offer many more advantages compared to the DC motors. Some examples of these advantages include; easy control by computer, precise control of rotation, and high torque at low speeds.<\/p>\n\n\n\n<p>Finding a power supply for a stepper motor is fairly easy. In fact, most any standard power supply will do for quick, one-and-done jobs. However, for serious hobbyists and commercial\/industrial projects, you might want to put a little more thought into <a href=\"https:\/\/www.circuitspecialists.com\/stepper-motor-power-supplies\">stepper motor power supplies<\/a>. It\u2019s the best way to optimize performance and maximize the motor\u2019s efficiency, after all.<\/p>\n\n\n\n<p>Here is what we will cover in the factors of choosing stepper motor power supplies.<\/p>\n\n\n\n<p><strong>Table of Contents:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>What is a Stepper Motor?<\/li><li>Stepper Motor: Practical Applications<\/li><li>Stepper Motor: Inadvisable Uses<\/li><li>Why Use Stepper Motor?<\/li><li>What to Look for in Your Power Supply<\/li><li>Conclusion <\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What is a Stepper Motor?<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2012\/01\/open-stepper-motor-simply-smarter-circuitry-blog-e1459383626638.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2012\/01\/open-stepper-motor-simply-smarter-circuitry-blog-1024x768.jpg\" alt=\"\" class=\"wp-image-2615\"\/><\/a><\/figure>\n\n\n\n<p>A <a href=\"https:\/\/www.circuitspecialists.com\/stepper-motor\">stepper motor<\/a> is defined as a \u201cbrushless, synchronous electric motor\u201d with multiple coils organized into groups called \u201cphases.\u201d It rotates, one step at a time, by converting digital pulses to energize each phase in a given sequence. These motors are basically DC motors that move in discrete steps dictated by mechanical shaft rotations.<\/p>\n\n\n\n<p>Stepper motors are sent a separate pulse for each step they take, and each step they take is roughly the same size. These pulses cause the motor to rotate at a precise angle (1.8\u00b0), consequently controlling the motor\u2019s position without the need for a feedback mechanism. <\/p>\n\n\n\n<p>This is why stepper motors are typically the motor of choice for motion control applications that require high precision.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Stepper Motor: Practical Applications<\/strong><\/h2>\n\n\n\n<p>Stepper motors are used in industrial and commercial settings. In fact, they\u2019re often favored due to their low cost, high reliability, and high torque capabilities at low speed. They\u2019re simple, rugged mechanisms that can function in almost any environment, no matter how rough.<\/p>\n\n\n\n<p>Since stepper motors move in precise, repeatable steps, they\u2019re great for applications that require speed control, low-speed torque, and precise positioning of <a href=\"https:\/\/www.circuitspecialists.com\/electronic-parts-and-general-supplies\">electronic parts<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img loading=\"lazy\" decoding=\"async\" width=\"780\" height=\"413\" src=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2020\/06\/Circuitspecialists-Stepper-Motor-Power-Supplies-02.jpg\" alt=\"Circuitspecialists Stepper Motor Power Supply\" class=\"wp-image-4594\" srcset=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2020\/06\/Circuitspecialists-Stepper-Motor-Power-Supplies-02.jpg 780w, https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2020\/06\/Circuitspecialists-Stepper-Motor-Power-Supplies-02-300x159.jpg 300w, https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2020\/06\/Circuitspecialists-Stepper-Motor-Power-Supplies-02-768x407.jpg 768w\" sizes=\"auto, (max-width: 780px) 100vw, 780px\" \/><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Positioning. <\/strong>Things like 3D printers, camera platforms, and some disk drives require precise positioning. Stepper motors are perfect for this as they move in precise, repeatable steps.<\/li><li><strong>Low-Speed Torque. <\/strong>A stepper motor\u2019s maximum torque is always at low speed, which makes them a great choice for applications that need low speed without sacrificing precision. Normal DC motors don\u2019t normally offer the combination of low speed and high precision needed.<\/li><li><strong>Controlled Speed.<\/strong> Speaking of speed, the precise increments of stepper motors provide excellent control for automation and robotics processes that require rotational speed.<\/li><\/ul>\n\n\n\n<p>But with these come some limitations that should be taken note of. Just like you wouldn\u2019t use a <a href=\"https:\/\/www.circuitspecialists.com\/soldering-irons\">soldering iron<\/a> in place of a blowtorch (and vice versa), there are some scenarios where a stepper motor isn\u2019t the best choice.&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Stepper Motor: Inadvisable Uses<\/strong><\/h2>\n\n\n\n<p>What stepper motors have in precision and consistency, they lack in efficiency, speed, and feedback.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Limited High-Speed Torque.<\/strong> As mentioned earlier, stepper motors provide an excellent combination of accuracy and low speeds at max torque. However, this also means that they aren\u2019t ideal for solo high-speed performances.<\/li><li><strong>Inefficient\/Low Efficiency.<\/strong> The current consumption of stepper motors is independent of the load they\u2019re carrying. They tend to run hot on occasion because, unlike DC motors, they draw the most current when they aren\u2019t doing any work.<\/li><li><strong>Little to no Feedback. <\/strong>One of the biggest drawbacks to using a stepper motor is their lack of feedback. Although they\u2019re great at precision and consistency, most stepper motors do not have integral feedback regarding their position.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why Use Stepper Motor?<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/ba3c4c98c93af75635d910ba665bd638_preview_featured.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"628\" height=\"472\" src=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/ba3c4c98c93af75635d910ba665bd638_preview_featured.jpg\" alt=\"\" class=\"wp-image-5149\" srcset=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/ba3c4c98c93af75635d910ba665bd638_preview_featured.jpg 628w, https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/ba3c4c98c93af75635d910ba665bd638_preview_featured-300x225.jpg 300w\" sizes=\"auto, (max-width: 628px) 100vw, 628px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>Overall, the advantages of a stepper motor far outweigh the disadvantages\u2014,, especially under the right circumstances. A lot of people consider a stepper motor to be a little more complicated (and fussy) than a standard DC motor and thus aren\u2019t willing to give it a try. <\/p>\n\n\n\n<p>While this, to some extent, may be true, stepper motors shine in practical situations that they were designed for.<\/p>\n\n\n\n<p>Such as the ones we\u2019ve mentioned above, namely 3D printing and hard disk drives. But there are other applications best for stepper motors, too:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Robotics<\/li><li>Antennas<\/li><li>Telescopes<\/li><li>Clocks\/watches<\/li><li>Traditional printing (paper feed and print wheel)<\/li><li>Textile machines<\/li><li>Gaming machines<\/li><li>Welding equipment<\/li><li>Factory automation<\/li><li>Lasers and optics, particularly linear and rotation stages<\/li><li>Fluid control systems<\/li><li>Flatbed scanners<\/li><li>Medical imaging machinery<\/li><li>Intelligent lighting<\/li><li>Camera lenses<\/li><li>CNC machines<\/li><li>Compact disc drives<\/li><\/ul>\n\n\n\n<p>It\u2019s important to note that most\u2014if not all\u2014of these applications use a DC power supply to run their stepper motor. This is due to the fact that stepper motors run better and far more efficiently when the voltage is several times higher than their rated voltage.<\/p>\n\n\n\n<p>That being said, knowing what kind of <a href=\"https:\/\/www.circuitspecialists.com\/bench-top-power-supplies\">power supply<\/a> to use for your stepper motor is crucial.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What to Look for in Your Power Supply<\/strong><\/h2>\n\n\n\n<h5 class=\"wp-block-heading\">When choosing a DC power supply for your stepper motor, you\u2019re going to want to take note of three things: the voltage, the current, and the power supply type. The most complicated factor of these three is usually voltage and current, so we\u2019ll cover those first.<\/h5>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Step 1. Add up the Voltage for Your Stepper Motors<\/strong> <strong>Supplies<\/strong><\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/Untitled-3.png\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/Untitled-3-1024x401.png\" alt=\"\" class=\"wp-image-5151\" width=\"1199\" height=\"470\" srcset=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/Untitled-3-1024x401.png 1024w, https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/Untitled-3-300x117.png 300w, https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/Untitled-3-768x300.png 768w, https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/Untitled-3.png 1485w\" sizes=\"auto, (max-width: 1199px) 100vw, 1199px\" \/><\/a><\/figure><\/div>\n\n\n\n<p>In order to choose the best power supply for your stepper motor, you\u2019ll need to add up the voltage of the motors. Just like most motors, stepper motors have a rated voltage and current. These numbers will tell you the maximum current you can expect when you hook the motor up to a certain voltage.&nbsp;<\/p>\n\n\n\n<p>For instance, take a typical model with a rated voltage of 2.8 Volts and a current of 1.68 amps. This means that if you hook the stepper motor up to 2.8 volts, it will draw roughly 1.68 amps.<\/p>\n\n\n\n<p>Running it at anything higher than 2.8 will make it draw more current than its max and\u2014in most cases\u2014will cause the motor to heat up excessively. This is why most people won\u2019t hook a stepper motor up to a power source immediately. They\u2019ll instead use a stepper motor driver to regulate the current.<\/p>\n\n\n\n<p>A <a href=\"https:\/\/www.circuitspecialists.com\/stepper-motor-drivers\">stepper motor driver<\/a> ensures that the motor doesn\u2019t attempt to draw more current. This keeps it safe from overheating without compromising the motor\u2019s efficiency.<\/p>\n\n\n\n<p>So first off, determine the number of stepper motors in your system. Make sure they all share the same voltage requirements. Next, add their current rated values.<\/p>\n\n\n\n<p>Say you have four stepper motors. Each motor needs \u00bd amp (or 0.5 amp) of current.<\/p>\n\n\n\n<p>All in all, your max needed current is 2 amps.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 2. Examine the Stepper Motor\u2019s Specifications<\/strong><\/h3>\n\n\n\n<p>Once you\u2019ve added the maximum current you need for your whole system, examine each motor\u2019s specifications to determine the voltage rating. Whatever it is, you\u2019ll need to get a power supply double the rated voltage. So far motors with a rated voltage of 2.8 Volts, you\u2019d need a power supply that runs 5.5 or 6 Volts.<\/p>\n\n\n\n<p>From here, it\u2019s mostly a matter of keeping those numbers in mind and combining it with a bit of research to find the best power supply you can use, like a DC power supply or a <a href=\"https:\/\/www.circuitspecialists.com\/variacs\">variac<\/a>. Ideally, one that meets both voltage and current requirements without compromising your budget.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong> Consider Motor Size<\/strong><\/h3>\n\n\n\n<p>One minor factor to consider is motor size with respect to what you expect the motor to do. Larger stepper motors are capable of delivering more power compared to smaller models. Some motors can be smaller than peanuts and still function as expected\u2014just not as powerfully.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/download-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"650\" height=\"690\" src=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/download-1.jpg\" alt=\"\" class=\"wp-image-5159\" srcset=\"https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/download-1.jpg 650w, https:\/\/www.circuitspecialists.com\/blog\/wp-content\/uploads\/2021\/02\/download-1-283x300.jpg 283w\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" \/><\/a><figcaption>Standard NEMA sizing<\/figcaption><\/figure><\/div>\n\n\n\n<p>Take into consideration the torque ratings of these models. Bigger motors with higher torque and more power will obviously need a DC power supply to match\u2014one that is roughly within its size range.<\/p>\n\n\n\n<p>For instance, NEMA (National Electrical Manufacturers Association) 17 is a size used commonly for 3D printers and the like. Models smaller than NEMA 17\u2014like NEMA 14\u2014can be used in micro-robotic or animatronic applications. And the larger models (like NEMA 57) are often used in CNC machines and industrial applications.<\/p>\n\n\n\n<p>This isn\u2019t true for all motors but sometimes a DC power supply that is roughly the same size of your stepper motor will meet the parameters and requirements of said motor.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Step 3. Browse for Best Offers<\/strong><\/h3>\n\n\n\n<p>Once you know what sort of power supply you\u2019ll need, the final step is to delve into the research. As is the case with most things, it\u2019s probably not the best approach to search \u201cpower supplies\u201d and buy the very first item recommended\u2014especially without reading the uses and reviews first, and <em>especially<\/em> if this is your first time.&nbsp;<\/p>\n\n\n\n<p>Say you\u2019re purchasing <a href=\"https:\/\/www.circuitspecialists.com\/blog\/best-electronic-kits-for-adults\/\">electronics kits for adults<\/a>. You can use a search engine to find a list of recommendations, suppliers, and manufacturers. But then the smartest move would be to carefully review each recommendation, one after the other, to find which one suits your hobbies, expertise, and budget best.<\/p>\n\n\n\n<p>It\u2019s the same with power supplies for stepper motors. There are plenty of blogs, videos, and online stores with a decent selection of power supplies for you to browse. There are also a lot of online forums that you can visit for advice, recommendations, and in-depth discussions with people asking the same thing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion <\/h2>\n\n\n\n<p>To recap our stepper motor power supplies article here is what we covered:<\/p>\n\n\n\n<p><strong>Table of Contents:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>What is a Stepper Motor?<\/li><li>Stepper Motor: Practical Applications<\/li><li>Stepper Motor: Inadvisable Uses<\/li><li>Why Use Stepper Motor?<\/li><li>What to Look for in Your Power Supply<\/li><\/ul>\n\n\n\n<p> We hope this article was informative. Feel free to check out <a href=\"https:\/\/www.circuitspecialists.com\/\">Circuit Specialists<\/a>\u2019 online store for some pretty good deals. <\/p>\n\n\n\n<p>We have a wide range of fairly-priced stepper motor power supplies that are sure to fulfill all your requirements and parameters.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Some people may consider the&nbsp;stepper motor&nbsp;to be a bit more complex than a&nbsp;standard DC motor. This may be true to<\/p>\n","protected":false},"author":42,"featured_media":2619,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_layout":"default_layout","footnotes":""},"categories":[1,4,9,3,135],"tags":[168,188,175,185],"class_list":["post-67","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-posts","category-power-supplies","category-safety","category-stepper-motors","category-tutorial-how-to","tag-how-to","tag-power-supplies","tag-product-info","tag-stepper-motors"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Choosing a Stepper Motor Power Supply | Circuit Specialists<\/title>\n<meta name=\"description\" content=\"When constructing a robot, or other system that uses stepper motors, you\u2019ll need to have a DC power supply that can run the stepper motor.\" \/>\n<meta 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