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Six tips for better TDR measurements
Signal speeds and devices continue to get faster and operating voltages continue to fall, placing ever increasing demands on signal and power integrity. If…
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PDN Basics – Paralleling Tantalum and Ceramic Capacitors Can Be Risky
Paralleling capacitors to achieve high frequency sideband decoupling must take into account the performance characteristics of individual capacitors. 1.470 tantalum capacitor is installed in…
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Troubleshooting Distributed Power Systems: The Switch (Part 6 of the ongoing series.)
System and power converter issues are frequently related to a converter’s switching characteristics, which are most easily observed at the switching node. In this…
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Combination VNA/FRAs Offer More Capability And Lower Cost
A frequency response analyzer (‘FRA’) is often used to measure gain and phase plots of control loops (Bode plots), filter responses and general frequency…
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PDN Issues Occur in the Simplest of Circuits
When we think of a power distribution network (PDN), the first images that usually come to mind are FPGAs and CPUs. These circuits generally…
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How To Verify Control Loop Design
The non-invasive stability assessment is a method that uses an output impedance measurement to accurately determine stability without access to the control loop. The…
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Troubleshooting Distributed Power Systems: Using Current Injectors (Part 5 of the ongoing video series.)
Previous videos in this series discussed the use of vector network analyzers (VNAs) to measure impedance using one- or two-port configurations. This video discusses…
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Five Things Every Engineer Should Know About PDN
We generally associate the Power Distribution Network (“PDN”) with the power circuits used to drive CPUs and FPGAs. The increasing use of FPGAs in…
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Oscilloscope Mistakes: #4 (Part 4 of 4)
Avoiding common pitfalls will get you better data with minimum effort. Steve Sandler takes a look at four common scope mistakes and shows how…
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Oscilloscope Mistakes: #3 (Part 3 of 4)
Avoiding common pitfalls will get you better data with minimum effort. Steve Sandler takes a look at four common scope mistakes and shows how…
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Oscilloscope Mistakes: #2 (Part 2 of 4)
Avoiding common pitfalls will get you better data with minimum effort. Steve Sandler takes a look at four common scope mistakes and shows how…
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FAQ #30: Can the Bode 100 measure complex permeability of Inductors/Chokes with some additional adapter and/or equipment?
It can measure impedance and that can get you there. We measure permeability by relating the inductance and physical core parameters such as core…