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SPICE: Certainty for All Decisions
Design, validate, and verify the most advanced schematics.
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Simulation / Analysis for PCB Design
How To: Impedance Matching and Terminating Capacitive Loads
Impedance matching and capacitive load termination are examined in this article.
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PWM in Power Supply Design
PWM signals are used to control average power delivery in switching regulator circuits.
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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.
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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
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What Causes Gibbs Signal Ringing in High-speed Channel Simulations?
Gibbs ringing is both a measurement artifact and a calculation artifact that arises in band-limited channels. Make sure you understand how this arises due to transform and convolution operations.
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How the Gibbs Phenomenon Produces Measurement Artifacts
The Gibbs phenomenon is a measurement artifact that can be mistaken for real signal integrity problems like ground bounce, ringing from reflections, or resonance on short lines.
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Complete Power Supply Filter Design and Simulation Guide
A PCB for a power supply can be as difficult to design as high-speed networking equipment and complex embedded systems. These circuit board designs need to account for a range of behaviors and safety requirements, especially when dealing with high voltages and currents reaching the output of the power supply. In addition to safety standards involved in power supply PCBs, component selection is critical for ensuring the design can provide the
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How to Reduce Common-Mode Noise in Your Power Supply with Impedance Balancing
You can use impedance balancing to reduce conducted common-mode noise in your power supply. Here’s how it works and some experimental results.
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Continuous Conduction Mode in an SMPS: What is it and Why it Matters
Learn more about continuous conduction mode and how to design to this condition in your power supply. The best design and simulation tools can help you verify continuous conduction mode is reached.
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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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Anatomy of Latitude Part Two: "Thread with a Needle” in the context of energy
We continue to explore the magic of energy conversion in a PWM transducer. Why is it magic? Theoretically, as we saw in the previous section, the line stabilizer initially converts some of the useful power into heat, which makes the efficiency of the line stabilizer less than 100%, and it is expected for technical systems. Theoretically, in a PWM transducer this happens without losses, isn't that magic? A PWM transducer, like a tailor with
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Using PCB Thermal Simulation and Analysis Software in Your Design Workflow
Streamline your PCB thermal analysis workflow with Altium Designer and Altium 365.
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The Best Capacitor Circuit Simulator for PCB Design
A capacitor is a fundamental element in integrated circuits and in PCB design, and it’s hard to think of a circuit that doesn’t contain at least one capacitor. A capacitor’s behavior and interaction with other components in a circuit generally needs to be simulated to ensure the design will operate as intended. Capacitors can provide filtering, blocking, and power stability behavior depending on their use in a circuit, and a capacitor circuit
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The Best Power Supply Circuit Design Tools With Simulation
From bench-top power supplies to power regulator circuits on embedded boards, designers often need to create a custom power supply circuit design and layout. These circuits sound simple to design, but it takes the SPICE-based simulation and verification tools in Altium Designer to create a stable, high-quality power supply circuit design. Altium Designer gives you much more than circuit design and circuit simulation tools; you can easily create
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Data Management for Component Models in SPICE PCB Simulations
Simulation software is becoming more powerful as time goes on, but the simplest solutions are sometimes still preferable for many applications. SPICE simulations have been around for decades, yet their applicability to a wide variety of circuits and applications is not lost on anyone. With SPICE simulation tools being so popular, it’s only natural that they appear in PCB design software platforms. Devices continue to become more powerful and more
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Oscillations, Clipping, and Ringing in Amplifier Stability Analysis
If you’re designing an amplifier circuit for your PCB, use amplifier stability analysis to understand the limits of stable oscillation.
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