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    The most powerful, modern and easy-to-use PCB design tool for professional use

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    PCB Design

    PCB Design

    Read the latest information PCB Design from the industry's leading experts.
    How to Select an Inductor for a Buck Converter An SMPS is one of those quiet (yet electrically noisy) devices that makes your favorite electronics run smoothly. They sit in the background quietly doing their duty, yet your board wouldn’t operate without them. As part of DC-DC converter design for power-hungry applications, component selection is quite important for ensuring stable power delivery to a load with high efficiency. Among the numerous DC-DC converter topologies, a buck converter Read Article
    How to Design Your PCB Test Coupon and What You Can Test As the operating speed of components has increased, controlled impedance is becoming more common in digital, analog, and mixed-signal systems. If the controlled impedance value for an interconnect is incorrect, it can be very difficult to identify this problem during an in-circuit test. Minor mismatches may not cause a board to fail, but it can be difficult to pinpoint incorrect impedance as the cause of any test failure, especially if correct Read Article
    Driving Haptic Vibration and Feedback in Wearables Augmented reality, virtual surgery, limb replacements, medical devices, and other new technologies need to incorporate haptic vibration motors and feedback to give the wearer a full sense of how they are interacting with their environment. Unless these cutting-edge applications include haptic vibration and feedback, users are forced to rely on their other four senses to understand the real or virtual environment. Low cost components to support Read Article
    Modeling Copper Foil Roughness in Altium Designer's Impedance Profiler Advanced transmission line models for long interconnects require that designers include copper foil roughness calculations in order to determine accurate impedance. Without the right models or design software, you’ll be left to estimate the skin effect impedance, dispersion, and parasitics in your PCB. These models can be difficult to work with by hand if you’re not mathematically inclined, but the right design tools can be used to quickly Read Article
    High-Speed Signal Routing: The 5 Important Constraints Your modern digital board is most likely classified as high speed, regardless of whether you looked at the datasheets for your components. Designing your board successfully will take some important steps when you begin your design. Aside from floorplanning and stackup design, your routing strategy will need to operate within some important constraints. After you capture your schematic as an initial layout and create an initial component Read Article
    Debugging Power Supply Noise to Reduce Signal and Clock Jitter Low level components need ultra-stable power, and high speed digital signals need to have repeatable edge transition times. The two aspects of digital signalling are related, and you’ll need to suppress all aspects of power supply noise to reduce jitter in a digital system. During a design debug, you’ll need to gather measurements throughout your board if you want to isolate and eliminate sources of power supply noise. Here’s how you can isolate Read Article
    Transmission Line Impedance Measurement: Even vs. Odd Mode I still work on research in lasers, and pump-probe measurements are one way to examine how the electromagnetic field interacts with charge carriers in optical materials. With electronics, you won’t have to do anything as complex as a pump-probe technique for a transmission line impedance measurement. You’ll still need to examine how signals travel down a transmission line, and how they interact with the dielectric and load component. That’s just Read Article
    How to Take a Phase Noise Measurement for High Speed Signals There are plenty of noise sources in your PCB, and phase noise can be one of those sources that is difficult to pin down in a real board. If you’re debugging a high speed board with high BER, then you’ll likely need to gather a phase noise measurement from the failing board section, or from your clock. Without getting too deep into the IC side of a system, phase noise may be an inherent property of the component you are using, such as the PLLs Read Article
    PCB Trace and Pad Clearance: Low vs. High Voltage High voltage/high current designs carry safety requirements which need to be met by designers. Similarly, high speed designs need to have suppressed crosstalk in order to ensure signal integrity. The key design aspects that relate to both areas are your PCB trace clearance and pad clearance values. These design choices are critical for balancing safety, noise suppression, and manufacturability. The IPC 2221 standards provide guidance for Read Article
    PCB Via Current-Carrying Capacity: How Hot is Too Hot? One common question from designers, particularly new designers that are learning about industry standards, is current-carrying capacity of conductors in a PCB. Trace and via current-carrying capacity are legitimate design points to focus on when designing a new board that will carry high current. The goal is to keep conductor temperatures below some appropriate limit, which then helps keep components on the board cool. While the recommended Read Article
    Amplifier Stability at High Frequencies and Stray Capacitance Amplifiers are one of those critical components that make modern life possible. From wireless communication to power electronics, amplifiers need to run stably and predictably for these products to work properly. Stability analysis is one of my favorite topics in physics and engineering, and it always tends to crop up in places you would least expect. One of these places is in amplifiers. Any time-dependent physical system with feedback and gain Read Article
    Near-field vs. Far-field EMI: What's Causing Noise Problems in My PCB? If you’re an antenna designer, then you’re likely familiar with all aspects of near-field vs. far-field radiation. Given the litany of radiated EMI problems that cause noise within and outside of an electronic device, one might suddenly realize their new product is acting like a strong antenna. To understand how EMI affects your circuits, it helps to understand exactly how near-field vs. far-field radiation from your PCB affects your ability to Read Article
    The Great PCB Layout "Rules of Thumb" Debate Rages On To this day, I still see many PCB layout “rules of thumb” that first became common nearly 20 years ago. Do these rules still universally apply? The answer is a firm “maybe.” Many of the conversations you’ll see on forums regarding PCB design rules devolve into an always/never discussion, causing some designers to use or ignore common design rules in situations where they may not apply. In some cases, this will not cause a board to fail. As some Read Article
    ADC Sampling Rate and Layout for Mixed Signal Boards Whenever you’re selecting an ADC, whether it is built into an MCU or as an external component, the sampling rate is a prime consideration, as it will determine how well you can reproduce a measured signal. RF applications, analog sensor boards, and other mixed-signal devices will need at least one ADC with an appropriately chosen ADC sampling rate. If you’re designing with a mixed-signal board, you’ll need to balance the required signal bandwidth Read Article
    Sharing PCB Data with Manufacturers in the Cloud Once you’ve finished your new project and you’re ready to push it to your manufacturer, you’ll normally be stuck in an endless email chain with an engineer, or you’ll have to share cloud links with each other. Personally, I find the long email chains and long list of links overwhelming, especially when I have plenty of other tasks that require my attention. Sharing PCB data with manufacturers shouldn’t be a headache, it should be a seamless Read Article
    Getting Started in Altium Designer | Changing the Rules! The Altium Designer environment is controlled by rules, which are created using a powerful tool called the “PCB Rules and Constraints Editor”. By creating rules before component placement and routing starts, Altium can warn you or prevent you from making mistakes, depending on how your preferences are set. If rules are changed midstream, Altium’s sophisticated Design Rule Checker can highlight violations based on the revised rules, and report Read Article
    The EMC Doctor is in: Ken Wyatt on EMI and PCB Health The OnTrack Podcast welcomes Ken Wyatt (also known as ‘the EMC Doctor’). Ken is an EMC Engineer, a prolific author on EMI/EMC related topics, and an industry consultant. Read Article