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PCB Design
Parameterized Tests Using Pytest for Hardware in the Loop Testing
In Configuring a Hardware in the Loop Project, we reviewed the hardware concept in the loop testing using the Pytest framework. In that article, we examined the high-level concepts needed to create a basic test framework and structure. In this article, we will be reviewing the Pytest framework in-depth, specifically parameterized tests. At the end of this article, the reader will understand the difference between individual tests and
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Using LDOs vs Switching Regulators in Your PCB
Designing a low power device? Learn more about the tradeoffs between LDOs vs switching regulators in this article.
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Switching Power Supply Output Filter: Design and Simulation
SPICE packages can help you design a switching power supply output filter bby looking at transient response results and running parameter sweeps.
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SUBCKT Sharing: The Fastest Ways to Share SPICE Models Online
SPICE simulation files shouldn’t be difficult to find. Use Altium 365 to store, track, and access your SUBCKT files for sharing.
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PCB Ground Plane Best Practices in Your Multilayer Stackup
Learn all about proper use of a PCB ground plane and grounded copper pour in your design. You’ll ensure signal integrity and low EMI with correct PCB ground plane placement.
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Serial Communications Protocols - Part Three: RS-232
In this series of articles, we’re looking at some of the different types of Serial Communication Protocols available for transferring data between devices. The articles will cover a few of the more popular protocols and standards in use today, and at the end of this series, we will recap and compare the advantages and disadvantages of each. We hope this information will prove valuable next time you need to implement a serial communication bus in
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All About PCB Tooling Holes: What They Are and Where They Go
Learn all about PCB tooling holes and mounting hole styles in your design and how they are used in the PCB manufacturing process.
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3 Key IPC Rules to Know, Follow and (Sometimes) Break
Gerry Partida is joining us in this OnTrack Podcast episode. Watch it now or listen on the go!
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Lightning Surge Protection for Electronics Equipment
On a clear fine day, the ground typically carries a slight negative charge with a corresponding positive charge in the upper atmosphere. This generates an average electric field strength around the globe in the order of 120 V/m. By comparison, just before it discharges through a lightning strike, a thunderstorm cloud generates an electric field strength in the order of 25 kV/m. This creates a potential difference between this cloud and the ground
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Easy Schematics Creation for Elegance and Readability
Exemplary schematics will show you the circuits plus everything you need to know about them at a glance. Poor schematics will force you to decipher them to glean a sufficient understanding of what the circuits do.
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What Influences Electrolytic Capacitor Lifespan?
If you speak with a bunch of design engineers, you might quickly believe that the electrolytic capacitor has a particularly dubious reputation. This view certainly hasn’t been helped by the so-called “capacitor plague” that occurred in the first few years of the new millennium. A faulty electrolyte mix used in these types of capacitors led to premature device failures, and quite often, a “bit of a mess” was made to the PCBs on which they were
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ESD Protection: Preventing Static Electricity in the Workspace
Electro-Static Discharge (ESD) is essentially the sudden flow of current between two objects with a different electrical charge when there’s a conducting path between them. This could be lightning flowing from a charged cloud down to the ground via the dielectric breakdown of the air between them or that short sharp electric shock you feel when the static electricity that’s built up in your clothing flows to a metal door handle when you touch it
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Types of PCB Soldering and the Assembly Process
There are multiple types of PCB soldering used in assembly, learn more about these types of solder and processes used to apply them.
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Designing High Integrity Systems
It was not long after the first electrical devices were conceived that they were being used in situations where their failure could have disastrous consequences. This could be delivering a fatal electric shock to the user or failing to apply the brakes on a speeding vehicle; electrical devices are used everywhere and for almost every conceivable purpose. Medical devices are now routinely embedded into a patient’s body to regulate their heartbeat
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Transmission Line Reflection Coefficient
View a numerical example of the transmission line reflection coefficient and how simulations can help you understand the results.
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IC Thermal Analysis: Thermal Management for Integrated Circuits
As anyone who designs and builds electronic devices knows, the device will generate heat when it’s switched on. Wherever current flows through an impedance, energy losses will manifest themselves as heat, thanks to thermodynamics laws, whether in components, connections, wiring, or the PCB. The greater the loss, the greater the excess heat generated. While components with thermally enhanced packages are available to help manage any heat generated
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Moisture Sensitivity Levels in Electrical Components
A range of materials used to construct electrical components can absorb moisture from the air over time. This initially became a problem with introducing reflow soldering, where the components are subjected to sudden high temperatures over a short period. This was then exacerbated with the switch to lead-free solder, which resulted in higher peak temperatures during the reflow process. Other factors that have increased the prevalence of moisture
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