Crystal Oscillators in Your PCB Layout Keep Frequencies Steady For most of human history, we relied on astronomical timekeeping to plan our lives. Now we have sophisticated clocks that help us manage daily life. As modern life becomes ever more frantic, we need to keep track of fractions of a second. Electronic pcb layout crystal oscillator guidelines are the secret sauce that makes this possible. The output clock signal from a Schmitt-trigger oscillator or a 555 timer is controlled using an RC time constant Read Article How an Electrolytic Capacitor PDN Issue Almost Brought Down a Building I recently came across an interesting story that involves the tale of a boiler system that failed to start under the close supervision of a TDK-Lambda rep, only to be solved by none other than the building maintenance technician. The story starts by the shutdown of an aging boiler in the dead of winter a British winter that required replacement of the seven-year-old radiators. After the repair and replacements took place, the boiler was switched Read Article Voltage Regulators and How to Plan Your Power Budget with PDN Analysis and Examples With my first buck regulator design, I had been given a power budget for the circuit block and I had to take into consideration what it was supplying and what topology I’d use. I considered efficiency to remove heat from the enclosure and I wanted to avoid using a heat sink. I also wanted a robust engine, a regulator to keep on working when the CPU, memory, and other utility circuits were exercising their might. I decided on the buck regulator Read Article Unifying a Comprehensive Collection: PCB Library Management Remodeling my kitchen was a project long overdue. I made a mental list of the materials I would need, such as appliances, cabinetry, countertops, flooring, and paint. Eagerly I drove to the local discount warehouse to peruse the materials. I sat with the store clerk making plans and quickly realized I’d need more than a few mental notes to stay organized. Keeping track of individual tasks within any big project is a chore if you don’t have a Read Article Add Any Component to Your Design With Unified PCB Component Libraries When embarking on the PCB design journey, there are some initial hurdles you’ll need to overcome in order to get your design process running smoothly and without interruption. Sometimes the hurdle is as manageable as making sure you get your coffee in the morning. Sometimes the hurdle is as tall as not having the knowledge, comfort, or software you need to accomplish your design tasks. Oftentimes, when sketching out an initial PCB design, there Read Article Enable Temperature and Humidity Analysis with a Humidity Sensor Circuit Design Living in a country with temperature averages of 35°C all year long, I have excellent heat tolerance. It’s the humidity that gets me all hot and bothered. I come from a small and peaceful town at the base of a hill. It sounds nice but is arguably the most humid town in the whole country. I remember showering at least fives times per day, unable to stand the high concentration of water vapor in the air. When I wasn’t drowning out the heat, I was Read Article Industrial Air Dryer Designs Demand a Keen Eye for Safety Early in my school days, I was lazy and forgetful. I would procrastinate on everything, including washing my school shoes. Pressed for time, I often dried my shoes under the radiator coil of an old-school refrigerator. Of course, that didn’t spare me from an earful of mom’s scolding. In one of my first industrial electronics designs, I did more than dry shoes. I designed an intelligent air dryer controller for a local milk powder processing plant Read Article Bill of Materials Control In the past, many PCB designers were confined to tools that dictated at which point in the design process that the Bill of Materials could be produced. But we know from years of experience that the Bill of Materials, or BOM, can change throughout the design process and the iterative change management is its own challenge. We believe the decisions should be up to you, while the repetitive aspects should be automated as much as possible, which is Read Article Bill of Materials Management Guide In the past, many PCB designers were confined to tools that dictated when the Bill of Materials could be produced. But we know from years of experience that the Bill of Materials, or BOM, can change throughout the design process. We believe the decision should be up to you, which is why we strive to offer tools that embrace flexible and agile options for PCB designers and other professionals involved in the decision process. Click the PDF above Read Article Sunswift: Student-Designed Solar Cars from Down Under Judy Warner: Please share how your team was started, how many cars you have built to date, and give us an overview of Violet. Kristian Bojidarov: Sunswift is a team of undergraduate students from the University of New South Wales who design, build and race the world’s most advanced solar-electric vehicles. With the knowledge gained since Sunswift’s founding in 1995, the team has recently completed the manufacture of our sixth vehicle, Violet Read Article Getting a Handle on Flex Cost Drivers Judy Warner: You've been in the board fabrication business for over 20 years. What factors do you see as contributing to the rise in flex and rigid-flex designs? Tara Dunn: I believe that space, weight and packaging are the primary factors driving designs to flex and rigid-flex technology. For customers that are already using flex and rigid-flex, I am seeing an increase in their percentage of new designs using flex and I am also noticing an Read Article Bill of Materials Management In the past, many PCB designers were confined to tools that dictated when the Bill of Materials could be produced. But we know from years of experience that the Bill of Materials, or BOM, can change throughout the design process. We believe the decision should be up to you, which is why we strive to offer tools that embrace flexible and agile options for PCB designers and other professionals involved in the decision process. Click the PDF above Read Article Manufacturing Checklists and Tools When it comes to manufacturing, organization is critical. With so many different players involved in the design process (engineers, sourcing agents, manufacturers, etc.), maintaining documentation and utilizing checklists and other tools will keep everyone on the same page and avoid confusion. Additionally, checklists can help ensure that the PCB design is fully complete and ready to send for manufacturing, protecting you from any unexpected Read Article Multiboard vs. Multilayer PCB Design Systems In the past, PCB designers were limited with system designs spanning more than one board. However, recent developments in mechanical CAD systems have given designers the ability to now design multiple boards for a system with relative ease. Thanks to 3D PCB design tool technology, designers are able to save both time and money previously spent on prototypes by confirming that their designs are system-ready. Click the PDF above to read more about Read Article Bluetooth Design Guidelines: Important Considerations for Low Energy Designs In my twenties, I could easily carry my laptop around the city without any sign of fatigue. These days, I tire out quickly and seek a nice massage after long periods of walking around with my laptop. That’s why I prefer to carry lighter working tablets instead of my bulky laptop. Technology has grown quite a bit since the classic Bluetooth. In electronics, Bluetooth Low Energy (BLE) does something similar for applications. It transmits short data Read Article Part Placement Shortcuts in Altium Designer I read once that circuit board design is 90% placement and 10% routing. I’m not sure that I believe that, but it is fair to say that component placement is a critical part of the overall board design. Yet some designers will rush this part of the job so that they can get on with routing the board, only to have to come back later and re-place portions of the board. I wonder if one of the problems is that designers get frustrated during the Altium Read Article Planting Seeds in a Row SMT Component Placement Tolerance for your PCB I had my 5-year-old nephew helping me spread flower seed this Spring. He got a kick out of throwing the seed out into the flower beds, but he didn’t pay attention to where he was throwing it. Most landed on the sidewalk. Before letting him continue, I decided to put some landscaping tape around the each bed’s perimeter. This helped the little guy get most of the seed into the right areas. With the flowers in order, we made sure to get a nice Read Article Pagination First page « First Previous page ‹‹ Page153 Current page154 Page155 Page156 Page157 Page158 Next page ›› Last page Last » Load More
