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Electromagnetic interference (EMI)
6-Layer PCB Stackup Design Guidelines
6-layer PCB design guidelines are easy to follow when you use the right design software.
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Switching Regulator Layout: One or Two Layers?
Don’t be afraid to route your switching regulator layout on two layers, but be careful of these noise problems if you do!
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PCB Noise Reduction: Do You Need Isolation, Shielding, or Filters?
Do you know which strategies you can use for PCB noise reduction? After you identfy the solution, place it in your PCB layout with these steps.
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42:21
Characterizing & Troubleshooting Wireless and IoT Self-Generated EMI - AltiumLive 2022
It is fairly common to find multiple onboard sources of energy causing EMI on today's portable, mobile, and IoT devices. The EMI from these energy sources can couple and often interfere with the receiver performance of cellular, GPS, and other wireless modules. This presentation describes methods for identifying, characterizing, and reducing the coupling from these energy sources. Design PCBs with a Free Trial of Altium Designer Highlights
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Overview of Electrical Stress Test Methods for PCBAs
Electrical stress test requirements should be considered as you begin to make a transition to high volume production.
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Common Mode Choke Selection
Noise on power supply lines can be a major headache. We'll examine how to select a common-mode choke to help eliminate common-mode noise.
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Beginner’s Guide to ESD Protection Circuit Design for PCBs
Circuit protection from transient voltages and currents can be applied with ESD protection circuit designs. Learn more about these circuits in our guide for new engineers.
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How to Use Ferrite Beads, Chips, Cores, and Plates
Are you using ferrite beads correctly in your PCB layout? Learn more about all the different uses for ferrites in your PCB.
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EMI Shielding Techniques You Can Use in Your PCB Design Software
Electromagnetic interference (EMI) is such a problem that governments around the world have placed limits on the amount of EMI an electronic device is allowed to generate or receive. Your electronic device needs to be designed to prevent unintentional radiation and suppress conducted noise up to a very high-frequency value. This is not a simple matter of adding filtering on every circuit in your PCB layout, it’s about considering the entire
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ESD Grounding Requirements in Your Next PCB
Any PCB that will be deployed in an environment surrounded by high voltage equipment or power sources is at risk of electrostatic discharge (ESD). Static electricity can also discharge directly into a board and ruin sensitive electronic components if a board is handled without a wrist strap. This induces a transient voltage in the PCB, which can cause damage to sensitive components. In extreme cases, such as lightning strikes or major power
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PCB Surge Protection: Designing Your PCB for Transient Voltage Suppression
Transient voltage suppression due to power surges can cause serious damage to components in your PCB. With the right software, you can implement an ESD protection and suppression strategy in your PCB.
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IEC 62368-1 to Replace 60950-1 and 60065 Safety Standards
Now that IEC 62368-1 now replaces IEC 60950-1 and 60065 in Europe and the US. Here’s what this means for IT and audio/video electronics designers.
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What Types of EMI Filters are Best for Passing EMC Testing?
When you need to pass EMC testing and your new product is being crippled by a mysterious source of EMI, you’ll probably start considering a complete product redesign. Your stackup, layout/routing, and component placement are good places to start, but there might be more you can do to suppress specific sources of EMI. There are many different types of EMI filters that you can place in your design, and the right filter can help suppress EMI in a
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Power Plane and Ground Planes: Should You Use Your PCB Power Plane as a Return Path?
Power planes (sometimes called a power layer) and ground planes are important for more than just distribution of supplying power. When defining reference planes, both with impedance controlled routing and in managing return paths, your stackup might force return currents to pass into a PCB power plane before being coupled back to a ground layer. Even though you define a GND reference layer as a the basis for your impedance-controlled trace width
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Cooling Fan Electrical Noise Reduction in Your PCB
Who hasn’t opened up their PC or laptop and taken a long look at its fans and heatsinks? If you’re working with high speed components, high frequency components, or power components, then you’ll need to devise some sort of cooling strategy to remove heat from these components. Unless you want to use the nuclear option and install an evaporative cooling unit or build a water cooling system, you’ll get the best results with the smallest form factor
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EMC Certification and Your Product
I’ve spent most of my career in electronics working with or for small businesses and startups, and helping them shape ideas into a physical product. Some recurring misconceptions I faced with almost every client were regarding Electromagnetic Compatibility compliance. Many had no idea that their products would need EMC testing, some were unaware of the duration of time and cost of certification, and others were unaware of how requirements applied
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PCB EMI/EMC Guidelines: Meeting EMI/EMC Standards in Your Designs
What if you set two cell phones next to each other and suddenly neither of them worked properly? Thankfully, this doesn’t happen because designers and manufacturers made serious efforts to ensure these devices comply with EMC standards on conducted and radiated EMI. Any device should comply with EMC standards before it makes it to the marketplace. While this sounds complicated, you have a number of simple design strategies to help your next
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