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Power Integrity

Browse our library of resources to learn more about pcb design and power integrity.

Class-D Amplifier Design and PCB Layout Altium Designer makes it easy to design your own Class-D audio amplifier design. Here’s a simple project to help you get started. Read Article

Digital On-Demand Manufacturing and a 32-Bit MCU PCB for Everyone Eli Hughes shows us how on-demand manufacturing through a PCB manufacturer's cloud platform helped him quickly produce a set of high-quality prototypes for a MCU board. Read Article

EMI Filter Simulation for Noise Suppression with Altium Designer 20 and Altium 365 Simulations can get very complicated, but Altium 365 helps you keep your simulation models and data organized. Read Article

Which Type of Capacitor Should You Use? Capacitors are used in far more applications than just bypassing noise, and there are many more types of capacitors than just ceramic and aluminium electrolytic. Read Article

A Guide to Challenging Projects Starting a project? Here's an expert advise from Mark Harris to get you through challenging design projects. Read this blog and see if this method will work for you. Read Article

Using Cellular for Internet of Things Devices and Design Cellular internet of things products are widely accessible and easy to design thanks to standard cellular modem modules and transceiver components. Read Article

Determining the Parasitic Inductance of a DC to DC Converter Unwanted parasitic inductance from capacitors and transformer leakage inductance in DC/DC converters cause power instability in digital systems. Here's how you can determine parasitic inductance in your power system. Read Article

What is Transfer Impedance in a PDN? We often talk about impedance in a PDN, but we always refer to self impedance. Here’s what you need to know about transfer impedance in your PCB. Read Article

Using Altium Designer for the Cellular Industrial IoT Industrial IoT can benefit hugely from cellular connectivity, and new cellular IoT hardware solutions are making it easy for innovators to build new products. Read Article

Oscilloscope Basics: A Beginner's Guide As electronics engineers, we’re incredibly lucky compared to other engineering disciplines. Not only are electronics rapidly evolving and expanding in use and functionality, but our test equipment gives us the greatest capabilities to diagnose and investigate the devices we have built. While all disciplines of engineering have fantastic suites of simulation tools, being able to see how something is performing in the real world can provide a lot Read Article

PFC Circuit Design and Layout for Power Systems Much as we would like, the power input into a PCB is not always a clean DC or sinusoidal signal. DC coming from a rectifier will have some ripple from the output capacitor, and AC signals can contain noise or be less-than-perfect sine waves. There are some ways to correct these problems, either by choosing the right filtration circuit or by shaping the input wave to produce maximum power output to a load in the system. If you’re working with an Read Article

A Power Integrity Primer Take a look at our power integrity tutorial to better understand PDN design for low noise and and stable power to components. Read Article

12 Ideas for Implementing NFC in Your Design Read to learn about many possibilities for NFC; some of these project ideas are taken from commercially available products or research papers; others are ideas from working through reading the NFC standard. Read Article

Modeling Capacitor Impedance Vs. Frequency Using an Excel Spreadsheet As noted in an earlier article, based on class notes from our two-day design course, getting the power subsystem design correct is the most challenging aspect of today’s high-speed PCB design process. A major aspect of this process is modeling the power supply to ensure that it will function properly in the end product. A critical part of this modeling effort focuses on being able to model capacitor impedance vs frequency. This is simple enough Read Article

Low Noise, Low EMI Power Distribution This board has several loads on it, but it is purely a distribution board with no regulation. The main loads are the hefty 5V Tilta nano focus motor, 5V SDI to HDMI converter, 5V Tilta follows focus control, and the battery voltage powered monitor. Out of these, only the SDI to HDMI convert needs remotely clean power. The motor, however, is very electrically noisy, so it needs good isolation. Read Article

Know the Power Dissipation Understanding power dissipation of an individual component, an electrical block, or even the whole electronics system is essential for electronics engineers. It is important not only to avoid exceeding the maximum limits of components but also to calculate unknown parameters in input or output sides because power dissipation is related to system voltage and current. In this article, I describe my practices for analyzing power dissipation in Read Article

12V DC Uninterruptible Power Supply I live in a rural village that tends to have intermittent power when there are high winds or storms. Because of this, my computers, servers, and network equipment are all on relatively low-cost, uninterruptible power supplies. These all run on sealed lead acid batteries and are not an overly efficient way to power a DC device such as a Raspberry Pi or internet router as the incoming mains. AC charges a DC battery, which then creates AC power Read Article