29:18 Tips & Tricks: Board Shape Creation Being able to design a board in your ECAD environment doesn’t mean that it is manufacturable in real life. You Watch Video PDN Analyzer Quick Start on a Motor Driver PCB Previously, I posted about designing a simple DC brushed motor controller using a single IC. While it’s a relatively simple board, it will still be transferring a maximum current of 4 amps if both motors are running at the driver’s full rated current per channel. For a board as simple as this, you could simply look at the trace length and width and use an online calculator (or a little math) to figure out current densities on the traces and see Read Article Saving Time Routing in Altium Designer 20 Judy Warner dives deep into the subject of Altium Designer 20 with long-time Altium Beta user and thirty-two year veteran of circuit board design, Mark Ross. Read Article Interface utilisateur moderne Read Article 2:0:16 Next Generation Materials: The Building Blocks of High Speed Design and HDI Watch Video Delay Tuning for High Speed Signals: What You Need to Know Length matched lines in a PCB Take a look at two signal readouts on an oscilloscope, and you can see how length/timing mismatches between signal traces can improperly trigger downstream gates. The situation becomes worse when we look at the travel time for a master clock signal and the roundtrip time for sent/received data in different computer interfaces. SDRAM has solved this nicely by placing a clock in the slave device and sending a clock Read Article Why Impedance Matching is Important in Transmission Lines Do you know the transmission line critical length for these traces? Whether you are working with digital or analog signals, you’ll most likely need to match impedances between a source, transmission line, and load. The reason impedance matching is important in transmission lines is to ensure that a 5 V signal sent down the line is seen as a 5 V signal at the receiver. If you understand why transmission line matching is important, you can start to Read Article Radiated EMI Sources in High Speed/High Frequency PCBs The image above shows a snapshot of results from an EMC test under CISPR requirements (U.S. uses FCC certification requirements). This product is right at the edge of Class B limits on radiated emissions. We can see a very complicated resonance spectrum in this plot with a large number of sharp peaks superimposed on wide peaks at lower level. What causes all of this radiated noise? There a number of sources that can cause this type of emission Read Article Flat vs. Hierarchical Schematics: Why You Need Dynamic Schematic Compilation What if your schematic editor could automatically define flat vs. hierarchical schematics? Dynamic compilation is here to help. Read now to learn more. Read Article How Absorbing Conformal Coatings Affect Your PDN and Radiated EMI Signal integrity analysis and measurements go hand-in-hand I remember the first time I— back in my days of working with sensors—pumped nitrogen dioxide into a humid environmental chamber while evaluating a DUT. Over time, the surface of my copper leads slowly corroded as they sat unprotected in such a noxious environment. As my electronics experiment was living a double life as a chemistry experiment, I questioned whether to use a conformal Read Article Power Integrity Measurements for Your Prototype Board We often write about signal integrity and power integrity around here, but there is one area where we sometimes fall short: test and measurement. Both aspects of building a new device are critical for ensuring your board will work as intended and meets stringent performance requirements. With advanced systems, the level of testing and measurements required to qualify a prototype for full-scale production spans far beyond using a multimeter. Power Read Article 29:12 Altium Designer 20 - Key Features Sneak Peek Are you ready to meet the next generation of Easy, Modern, and Powerful PCB design? Watch this live webinar to Watch Video Modern User Interface Read Article OnTrack Newsletter: Altium Designer 20 Sneak Peek, Impedance Measurement, Food for Thought - November 2019 OnTrack Newsletter Nov. 2019 Vol. 3 No. 6 A First Look Inside Altium Designer 20 November marks the launch of Altium Designer 20, and we thought you’d be like to hear from a couple of Altium veteran “insiders” about what you can expect to see in this latest release. Lawrence Romine, VP of Corporate Marketing and Ben Jordan, Technical Marketing Director, Corporate (both engineers) share what their favorite new features are and which ones they Read Article Follow Your Multilayer Ground Return Path to Prevent EMI Following the path back to ground can quickly become complex in a complicated multilayer PCB. When your PCB has a small layer count (e.g., a 4-layer board with two plane layers), it becomes rather easy to determine the return path and deliberately design it to prevent EMI. The situation becomes more complicated when you’re working with higher layer counts. Multiple plane layers and conductors can form the ground return path, even if the conductor Read Article Driving Small DC Motors With Altium Designer In this article, we’re going to run through the actual implementation of a driver IC from schematic creation to PCB layout. You will find this project on GitHub, released under an open-source license if you simply want to grab it to copy and paste into your own design. Part Selection I have two small, high-speed motors that I want to drive, which will draw about 1 amp each under load, and I’ll need to run off a 30 volt power source in an Read Article Problems in Multiboard BOM Generation? Unified Design Tools Can Help Dealing with a multiboard BOM can feel like shuffling stacks of paper... Your next multiboard system design is likely complicated enough. You’ve got to worry about multiple layouts, multiple schematics, signal integrity within and between boards, mechanical form and function, and EMI/EMC. With all these design aspects to worry about, documenting every aspect of your board can be a time suck. With so many new products being built from multiboard Read Article Pagination First page « First Previous page ‹‹ Page94 Current page95 Page96 Page97 Page98 Page99 Next page ›› Last page Last » Load More
