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Seeing Through the Noise: Reliable Power Rail Measurements in High-Current AI Systems | Signal Integrity Journal
The Challenge: Measurement Uncertainty Obscures VRM Performance Gains Measuring power rail transient performance in response to high current dynamic loading is essential for power…
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…
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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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Why Network Analyzer Signal Levels Affect Measurement Results
When measuring a circuit or device with our network analyzers, engineers generally inject a signal and believe that the measured results reflect that of…
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Signal Injection Transformers – What makes them special?
In this article we’ll take a look at what makes the signal injection transformer special, why an audio or video transformer is not a…
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Deconstructing the Step Load Response Reveals a Wealth of Information
What can be learned from the Step Load response and why we should care? When analyzing power circuits, engineers routinely evaluate the stability using…
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Transformer Parameter Extraction
It is often the case, in circuits which use a transformer, that the performance of the circuit is significantly dependent on the characteristics of…
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Broad Injector Product Line Eases Power Supply Stability Analysis
Developed to aid power supply designers in control-loop stability analysis, Picotest’s line of signal injectors are being introduced as the “most flexible and sophisticated…
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SPICE Modeling Using Two Picotest 6.5 Digit DMM’s
I was thinking about how a typical engineer would go about creating a SPICE model for a simple diode. This seems like a pretty…
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Generating Stable Voltage For Multiple Applications
Understanding the key parameters of diodes and other components used in reference voltage circuits can help avoid issues in different application circuits across many…
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FAQ #16
What Calibration Services do you offer? Apart from warranty repairs, calibration and servicing, done directly at Picotest, we work with Precision Metrology, a calibration…
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FAQ #15
What injectors should I order? Most users purchase cost saving “bundles” and we have several to choose from on our website. Please see Injector…
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FAQ #14
Please specify what is the maximum AC injection signal voltage and current for the J2120 Line Injector? We need to measure PSRR of our DUT…
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FAQ #13
Which measurements (Output impedance Vout/Iout, audio susceptibility Vout/Vin, input admittance Iint/Vin and reverse transfer Iin/Iout, loop gain are we are able to perform utilizing our…
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FAQ #12
Is it possible to also measure the audio susceptibility (Vout/Vin) of a power supply with the current injector J2111A? Yes. The J2111A is a small…