Controlled ESR Capacitors: Should You Use Them for Power Integrity? I can’t think of a single product I’ve built that doesn’t require capacitors. We often talk a lot about effective series inductance (ESL) in capacitors and its effects on power integrity. What about effective series resistance (ESR)? Is there a technique you can use to determine the appropriate level of resistance, and can you use ESR to your advantage? Like many answers to important engineering questions, the answer is “it depends.” One type of Read Article Routing Requirements for a USB Interface on a 2-Layer PCB In an earlier blog, I discussed some of the basic points in preparing routing rules for 2-layer PCBs to support routing and layout with digital signals. In particular, we looked at some of the basic stackup and routing rules needed to support a digital interface like I2C or SPI on a 2-layer PCB. When working with these interfaces, a few simple guidelines can help ensure signal integrity in your board and cut down on EMI. What about an impedance Read Article Ferrite Core Selection and Design Decisions When designing a transformer or using a ferrite core inductor, you must use the correct design process, and there is no substitution for real-world final testing. Let’s look at the process. Read Article Schematic Design Review Checklist This article is a simple, no-frills checklist to help you check schematics. Read now and avoid schematic design mistakes that could make their way into prototypes or production without a second thought. Read Article Beginner's Guide to H-bridge Full Wave Rectifier Design Need to start a new power conversion design? You’ll probably need an H-bridge full-wave rectifier to produce a stable DC output. Read Article Energy Harvesting Sensors for Medical Devices and Remote Sensors Harvesting energy from the environment is an increasingly popular technique for powering electrical devices. Let’s discuss sources and implementation. Read Article How Important is Your Microcontroller Clock Source? The type of clock signal you need to use for your microcontroller will depend mainly on the nature of the device it’s embedded in and its operating environment. Read Article MMw and RF Interaction John will generously share with us today a glimpse of his recent keynote presentation at PCB West 2021. Watch now, and don't miss this rare opportunity to learn from expert John Coonrod. Read Article Copper Pour and Via Stitching: Do You Need Them in a PCB Layout? When is it appropriate to use copper pour or via stitching in your PCB layout? Read our guide on copper pour and how it can be used properly with via stitching. Read Article PCB Design Review Checklist It’s essential to check a board for issues before production or prototyping. Here’s an extensive checklist you can adapt or use directly for PCB design review. Read Article Do You Always Need 1 oz. Copper Thickness on Each Layer? 1 oz. copper thickness is often seen as a standard thickness value used in many designs. Here’s when you might need thicker copper on every layer. Read Article Getting Started With ESP8266 A project overview on getting started with the ESP8266 device. Expert Ari Mahpour reviews the benefits of using a device such as the NodeMCU board from HiLetgo and how to get up and running with a few examples. Read Article Getting Started with MQTT and Arduino Uno Check this out. This is a new project overview demonstrating MQTT by expert Ari Mahpour. In this article, Ari answers the What and Why of MQTT, and gives guidelines to get your project started. Read Article SAP (Semi-additive PCB process): The Basics Expert Tara Dunn answers what are semi-additive PCB fabrication processes and what are the benefits? Read now and learn more about SAP. Read Article Can You Route Digital Signals on a 2-layer PCB Design? 2-layer PCBs are a common entry-level choice for designers, and they can even support high speed designs if built correctly. Read Article PCB Silkscreen Guidelines PCB silkscreen helps ensure your board is easy to read and test, and it aids assembly by clearly indicating component locations. Read Article The Wheel Keeps Turning: Advanced Bill of Materials for PCB Design At a young age, my grandfather was trained in the repair and construction of wooden wheels, which was a necessary skill on the rural farm where he was raised. When modern times finally found Eastern Missouri, that highly skilled confluence of woodworking and blacksmithing was totally replaced by modern technology, save for the occasional historical re-creation. The change had been inevitable, so my grandfather proactively added machining Read Article Pagination First page « First Previous page ‹‹ Page42 Current page43 Page44 Page45 Page46 Page47 Next page ›› Last page Last » Load More