Development of buck-converter on STM32F334: principle of operation, calculations, prototyping

Development of buck-converter on STM32F334: principle of operation, calculations, prototypingIn my last two articles, I talked about the power module and the control board based on the STM32F334R8T6 microcontroller, which were created specifically for implementing control systems for power converters and electric drives. An example of a DC /AC converter was also considered, which was a demonstration, not a complete construction. Now it's time to do something simple, but useful, and most importantly complete. 3r31196.  
3r31196.  
Most of the issues related to the project and power electronics are related to specific topologies: someone is interested in knowing the PFC control algorithm...
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Prototypes: how to create a successful product and save

Prototypes: how to create a successful product and save  
 
Half a year ago in an article about, how small usability mistakes make big business problems I mentioned the unsuccessful launch of Delisamok, whose raw application caused a big wave of negativity.
 
 
Recently, walking around Moscow, I remembered a startup and decided to check it myself. But after 15 minutes, I realized that there was no chance to rent a scooter, and the 1.5 rating in the AppStore is fully justified and confirms that it’s not just mine.
 
 
A lot of money was probably spent on launching a startup of this magnitude. And a rating of 1.? as it were, hints that we will have to spend ...
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Injection Molded Films (IMD): How It Works

 3r3186. 3r3-31. Injection Molded Films (IMD): How It Works In the last article 3r380. we explained on fingers how the injection molding machine works and showed typical mistakes in the design of the mold casting housing. This time we will focus on the IMD (In-Mold Decoration) technology - this is the name for the molding of plastic products using a special film to create various visual effects and strengthen the design. 3r3173.  3r3186. 3r3173.  3r3186. Under the cut - a brief overview of the technology and a dozen photos directly from the production department at a Chinese factory.
3r380. 3r3173.  3r3186. 3r3173.  3r3186. 3r3151. How it works ...
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We write the FPGA loader in LabVIEW. Part 2

 3r31215. 3r3-31. 3r31078. 3r33554. Download configuration to FPGA via USB or disassemble FTDI MPSSE
3r3-1089.  3r31215. We write the FPGA loader in LabVIEW. Part 1 3r3-131121. 3r3-1089.  3r31215. We write the FPGA loader in LabVIEW. Part 2 3r31120. 3r3-1089.  3r31215.
Error handling
3r3-1089.  3r31215. 3r31078. Open source source code, analyze the function MPSSE_open. Despite the algorithmic simplicity (functions are called for each other), quite a lot of D2XX API elements need to be imported: 3r3992. FT_OpenEx , 3r3992. FT_ResetDevice , 3r3992. FT_Purge , 3r3992. FT_SetUSBParameters , 3r3992. FT_SetChars ...
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We write the FPGA loader in LabVIEW

 3r33800. 3r3-31. We write the FPGA loader in LabVIEW . Here you can argue long and to no avail. The situation is aggravated by the fact that there are a lot of examples of programs on LabVIEW on the network, but they are all focused on the beginner and come down to "oh, look how simple it is, connect the twist to the indicator, twist the handle, change the dial", or at best, the graph in the cycle a random number or a sine is displayed, all this is accompanied by a furious interface in the form of giant toggle switches, twists, and dial gauges. Personally, this conscious simplification annoys me. In a small series of articles I will try ...
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Hackathon on Data Science in SIBUR: how it was

 3r33333. 3r3-31. Hello!
 3r33333.
 3r33333. Since the beginning of the year, we have conducted about 10 hakatons and workshops throughout the country. In May, we are together with r3r36. AI-community
organized hakaton in the direction of "digitization of production." Before us, the hackathon about data science in production has not yet been done, and today we decided to tell in detail about how it was.
 3r33333.
 3r33333. Hackathon on Data Science in SIBUR: how it was  3r33333.
 3r33333. The goal was simple. It was necessary to digitize our business at all its stages (from the supply of raw materials to production and direct sales). Of course, applied ..
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A complete guide to the correct use of animation in UX

I bring to your attention the translation of a very cool article on the animation of the interface.
 
The ultimate guide to proper use of animation in UX author of Taras Skytskyi.
 
 
A complete guide to the correct use of animation in UX  
 
Currently, it is difficult to impress or even surprise with the animation of the interface. It shows interaction between screens, explains how to use the application or simply directs the user's attention. While studying the animation articles, I learned that almost all of them describe only specific use cases or general facts about animation, but I did not come across any article where all the rules concerning the ...
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How to solve any programming problem

Hello everybody!
 
 
Today, your attention is invited to translate in its own irreplaceable article, which will help you correctly approach even the most insidious and non-trivial TK, which you at first glance do not understand the point of view. The main thing is not to surrender and to formulate questions correctly. Mr. Justin Fuller of the Bank of America kindly explains how this is done correctly.
 
 
How to solve any programming problem  
 
Enjoy reading!
 
 
 
So, this day has come. Maybe this is your first working day, and maybe you have been working at this place for ten years already - it does not matter. With each this happens: you ...
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The company "Foliplast": the full cycle of digital production in Russia

The company "Foliplast": the full cycle of digital production in Russia  
 
Hello friends! With you Vasily Kiselev and we are in Nizhny Novgorod, the capital of the Volga region. Lower today is a large industrial center, in which digital production is seriously developed - from digital modeling, reverse engineering and prototyping, to industrial 3D printing and robotics, automated machining and thermovacuum molding.
 
 
 
 
Today we look at how the "kitchen" of one of these industries is arranged.
 
Meet! Company Foliflast !!
 
 

 
Shining3D - a professional scanner with which we have been working for a long time, it completely suits us for convenience and quality of scanning.
 
 
 
 
...
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AI, practical course. Collection and study of images

AI, practical course. Collection and study of images  
 
This article discusses methods used to collect data from images in a music project with a slide show. There were limitations that forced us to use the existing image database, rather than images taken from Flickr. However, this article discusses both approaches so that the reader can learn how to extract data using the Flickr API.
 
Further, since the quality of a significant portion of the images collected with Flickr turned out to be low, it was decided to use images from existing image databases. In particular, images were collected from three databases for psychological research.
 
...
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