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Recent Articles
Using Rules-Driven Design to Control a High-Frequency Board
There was a time where high-frequency design belonged to realm of specialized engineers who lived in a world all of their own. For those of us designing printed circuit boards we rarely ventured into this realm, and when we did we were very happy to turn over that portion of the design to those engineers. They would perform calculations based on formulas that seemed to originate from the mystic arts, and then direct us to how the circuit should
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Build Your Own PCBs With Clear Instructions From Accurate Bom Statistics Data
There is an intersection not too far from where I live that causes a lot of confusion. It’s a three-way intersection in the shape of a “T”, and yet only one branch of the “T” has a stop sign on it. I don’t know why it was built this way or why it hasn’t been corrected, but the results are often dangerous. People waiting at the stop sign who aren’t familiar with the intersection tend to assume that the other two branches have stop signs as well
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Design Layout Integration and What it Means for Your Printed Circuit Board
Not all PCB design software is created equal. Your PCB design tools can come in a variety of interfaces, software programs, and workflows, and creating some consistency among tools can be a huge productivity booster. Design tools that are separated into different programs and that enforce different workflows will seriously hamper your productivity. When everything is separated into different interfaces, translating between programs creates the
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Team Design Support Makes Rapid Prototyping a Breeze
If you’re looking to document features and changes in your next PCB, word processing software and email chains simply won’t do the trick. Keeping information consistent over time and across an organization takes design software that enforces a consistent data format that is accessible by everyone on your team. If you’re using design modules with different workflows and data formats, you might as well be creating documentation using pen and paper
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Tips to Minimize the Effects of Differential Noise in RS485 Communication
I’ve never been a morning person and pride myself on simply getting dressed and making it to work on time. Although I typically beat the traffic and appear at the office just in time, there have been occasions when I’ve arrived wearing mismatched socks. In these situations, I walk straight to my desk and hope that my embarrassment stays unnoticed. In electronics, you might deal with a completely different type of embarrassment if you fail to keep
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How to Expand Input and Output for a Microcontrollers Circuit Board
When working through practice boards and schematics very early on in my education, I remember more than once thinking about simply increasing the board size so that I could fit my components properly and make routing easier. It definitely would not have helped, and I’m glad I persevered in finding solutions through the challenges, but there are still times in my career where I’ve looked at the necessities of devices and wished I could just make
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Altium's Bill of Materials Software: Get Rid of ORCAD's BOM and Keep It Simple With ActiveBOM
I don’t know about you, but I have no desire to be a software engineer. I want software that does routine tasks in the background, leaving me to focus on creative activities. Leaving behind rote demands moves my day into dealing with higher-level details like how electricity flows through components. That’s why I’ve ditched ORCAD Bill of Materials software and moved on to Altium’s ActiveBOM–the best Bill of Materials software. Making Bills of
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Test Out and Validate High-Speed Designs with Signal Integrity Simulation
Sometimes the biggest onion can’t be peeled. It seems simple enough. You pick up an onion, a knife, and get going. It would be nice if all of life were so simple, and I suppose it is if you can just break each task into a simple series of steps. Along with intuitive tools, each step leads to the next and pretty soon you’re sending commands from your smart phone to your food processor before you get home. Signal integrity simulators feel like a
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Using Altium's PDN Analyzer and Incorporating Simulation-Driven Workflow
If you’ve ever placed your hand near the vent on your computer, you can get a sense for the heat being created by the motherboard. Fans are designed to remove heat generated by the components on your motherboard, particularly by your CPU and GPU. The same effects occur in PCBs, even if they do not include components that consume a large amount of power. Power is consumed as it is delivered from the power source to the components, and power drops
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Optimizing Design Output Files for Large Batch Production
For as long as PCB designers have used CAD tools to design their circuit boards, they have also had to create output files from those CAD tools to get the design manufactured. This used to be a time-consuming task involving a lot of manual intervention. You would have to create several related documents in addition to the data files, and perhaps even use a different design tool to create manufacturing drawings. Anymore though, the process of
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PCB Creativity and Training: Utilizing Creative Routing Solutions with Tight Component Placement
When I was working in a research lab and designing PCBs for our homemade optical systems, my layouts were down and dirty. We didn’t worry about little things like packaging, limited board space, or compact routing. We were happy as long as we could get all of the required components to appear on the board and eventually the board became a printed circuit. Once our microscope systems became more intricate, connecting our high speed, custom images
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Easily Placed Surface Mount Technology with 3D Viewing Software
Years ago while designing a printed circuit board for one of my company’s products, I was called over to the mechanical design department for an impromptu meeting. They had pulled in my design files into their 3D mechanical CAD system and wanted to show me something. There it was as big as life; one of my tall electrolytic capacitors was sticking up right through the plastic enclosure. While trying to restrain their laughter, they sarcastically
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How a Components Search Engine Helps You Choose Parts For Your PCB
If you owned a computer during the 1990’s, then you remember when internet search engines became massively popular. Most homepages were likely set to one of the three or four major search engines. This made surfing the digital highway so much easier, and now search functionality is integrated in many different websites and applications. Anytime you need to quickly locate specific entries in a large database, using a search engine is the fastest
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Browsing Electronic Component Distributor Inventory with Integrated Libraries
Even though I make a lot of lists just to keep track of all the different activities going on with my business, it gets tiring. When I need to buy office supplies, it helps to have all my options in one place so that I can figure out where I need to go to buy everything. Thankfully, when you’re sourcing for your PCB, there are solutions that show you all your distributor options. Browsing through distributor websites to source components for your
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Build Your Next Engineering BOM With Integrated Design Software
It’s easy to collaborate on a project with a small number of people. I’ve always found that two or three people can thoroughly hash out the details on a project in person and produce great results. But as a team grows in size, you’ll spend more time reading and writing documentation. This is not necessarily a bad thing; it helps formalize processes and products across an organization and ensures that everyone can stay on the same page. Any new
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Integration of Schematic Capture, Layout, and Databases Improves Efficiency
Do you like seeing old classic cars in movies and on TV? So do I. Would slipping behind the wheel of a vintage Model T Ford for a test drive be the highlight of your bucket list? Mine too. Would it be as simple and easy as they show on TV? Absolutely not. Of the three pedals on the floor of the Model T, the left controls first gear, neutral, and second gear depending on if you push it in all the way, half way or not at all. The middle pedal is
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When to Prefer Longer PCB Traces Over Additional Vias
Whenever I go to buy a new big-ticket appliance, I always weigh my options. Sometimes I let this paralyze me, and I end up making a spending decision that I later regret. But it doesn’t have to be this way when deciding how to route signals in your next PCB. When you have many components and interconnects to place on your PCB, you need to weigh your options. Dense routing is as much an art as it is science, and having as much information as
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