![]() Has a couple of features that aren't available on the table view. More traditional here, you can also sort on designs by just clicking on each of the columns. Now, other than the card view that we see here, on the top right you also have a table view. I spend a lot of time on this page, just studying the designs. In this case, it found 21 designs that match your criteria. In less than a minute, the tool just went through thousands of calculations and sorted through hundreds of designs. So now we have a totally new way of picking the best part for the design. We just simply won't have time today.Īnd at this point, click View Designs. And I urge you to look at the options and work with them. You can select to only use parts that provide an external sync, and other options. So if you don't want to work below 0603, or I sure don't want to go below 0402s- can barely see them and sure can't rework them- you have that ability. We give you the ability to select a minimum component size. Now, here, another pull-down menu for optional settings, such as you can set your ambient temperature. Now, this actually will adjust the coefficients of the algorithms such that you end up with a low cost design, a high efficiency design, or a design with a small footprint, or as often is the case, you're looking for a balance of all three, so we'll use that today. Now, WEBENCH also provides the ability to select four different optimization settings. And we provide the ability to set a maximum output ripple and other options on the output. Now, you'll notice two pull-downs,m on under Input, one under Output, for optional settings such as an EMI filter on the input. And as mentioned earlier, we decided on 4.5 to 49 volts on the input, 3.3 volts and 3.5 amps on the output. We click on Start Design right under the DC to DC selection.Įnter our input voltage. We start from the WEBENCH Power Designer landing page. You're thinking it might require a flyback design or maybe a multi-stage design. Sounds like a pretty tall task for a single IC. So I'll design for down to 4.5 volts and up to 49 volts. It also wants to support a USB source, a 5-volt input. But it needs to support multiple batteries, let's say a 12-volt, 24-volt, and a 48-volt battery. So let's say your boss asks you to design a battery-based power supply. And then we'll compare the results and see how they match up. And then at the end, I'll demonstrate and validate that design on the bench right behind me. So now let's go through a full WEBENCH design. And you can find my four-part series on testing power supplies on the TI channel on YouTube, or on our website, ti.com. So you must test it to ensure the design operates as expected. But in any case, all designs must be bench-tested. What WEBENCH does provide is a reliable power design in the matter of a few minutes. For that, you could use TINA-TI simulation tool, which is available online free of charge. But WEBENCH is not a full-blown simulator. Yet the tool provides an optional SPICE-based simulator, so you can see waveforms that you'd expect to see in the real world. The back end of the tool uses complex analytical equations to design and then analyze the performance of the power supply. It provides simplicity, yet many advanced features, many of which are now found in pull-down menus, some of which we'll show you today. ![]() ![]() Now, WEBENCH is applicable to all levels, from novices to those very experienced designers. It has simulation capability, and also provides multiple ways to collaborate and share your design with others. But it also creates a reliable schematic and a Bill Of Material, or BOM. WEBENCH has a brand new user interface for finding the best parts, which I find valuable in itself. By the time you finish watching this short video, you'll be comfortable creating a full end to end power supply design, and exporting that design to your favorite CAD environment. WEBENCH Power Designer is a free, comprehensive online design tool used to accurately design DC to DC, AC to DC, isolated, and non-isolated power supplies. Today, I'll be demonstrating TI's latest WEBENCH Power Designer, which can be found at webench.ti.com/power-designer. My name is Bob Hanrahan, field application engineer at Texas Instruments.
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