Featured Insights
Picotest and ignal Edge Solutions address TAPI concerns.
You may not have heard of TAPI, but you will. By necessity, testing extreme dynamic transient conditions is becoming more and more common for…
The Challenge of Measuring a 40 µohm, 2000 Amp PDN With a 2-Port Probe: How Much CMRR is Needed?
Benjamin Dannan, Signal Edge Solutions and Steve Sandler, Picotest Published in Signal Integrity Journal A two-part series of posts, firstly determining how much CMRR is needed…
Picotest Releases Line of High-Speed Transient Load Steppers for VRM and PDN Validation
In a major technological leap, Picotest, maker of custom test equipment for power integrity and power systems testing, has released a series of very…
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Automate VRM Testing with Python & SCPI: A Guide for Lab Measurements
Automating VRM Testing Just Got Smarter Manually measuring voltage regulator modules (VRMs) in the lab? That’s yesterday’s workflow. Signal Edge Solutions breaks down how…
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Calibration, Embedding & De-Embedding – Achieving Highly Accurate Impedance Results
OMICRON Lab hosted their 14th Power Analysis & Design Symposium – April 9th, 2025 Watch Steve Sandler discussing how to achieve Highly Accurate Impedance…
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Understanding Voltage Response Of An LC Circuit
Question submitted by Ashish Roy, Havells-Sylvania, India For an undamped LC circuit excited by an AC voltage source through simple phaser equations, we come…
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Inside the 21st Century Power Test Lab
Making high fidelity measurements on high-performance power converters—when measured alone or in distributed power systems—can require a number of different test instruments encompassing multiple…
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Measure small impedances with Rogowski current probes
You’re probably familiar with clamp on current probes, but chances are you don’t know much about the Rogowski current probe. A Rogowski coil produces…
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Five Things Every Engineer Should Know About Bode Plots
The Bode plot is recognized for its simplicity and the simple asymptotic approach makes the method useful for both design and assessment of power…
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Troubleshooting Distributed Power Systems: Making Time Domain Measurements (Part 8 – The final video of the series.)
In previous videos, Sandler discussed measurement of power supply signals such a switch-node waveforms and output ripple. In this video, he delves further into…
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Non-Invasively Assess Your Multiple-Loop LDO’s Stability
Some low-dropout regulators (LDOs) use multiple feedback loops to improve output voltage transient response. In many of these cases, some or all of the…
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Troubleshooting Distributed Power Systems: Measuring Ripple (Part 7 of the ongoing series)
Circuit designers, particularly power supply designers, are frequently required to measure power supply ripple. Nevertheless, many engineers struggle with this measurement as sensitivity, selectivity,…
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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…