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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FAQ #18: What injection resistor value should I use? Is it okay to use a little larger resistor like 30 or 50 ohm instead of 5 ohm (like many app notes recommend)?
What injection resistor value should I use? Is it okay to use a little larger resistor like 30 or 50 ohm instead of 5…
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Extracting Bode Plots from Output Impedance
Many articles and application notes describe the extraction of phase margin, using a non-invasive technique that extracts the phase margin from an output impedance…
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Stability Assessment of Fixed Regulators
There are cases where a Bode (gain?phase) plot cannot be obtained from a control loop. For example, a three terminal regulator or hybrid may…
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Are We Focused On The Wrong Reference Parameters?
Designing a reliable circuit that employs a voltage reference requires a more detailed look at device parameters than most data sheets provide. The key…
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Measuring the Output Impedance of Voltage References and Zener Diodes
In this article we examine the process of measuring a key performance characteristic, output impedance, using the Picotest J2130 DC Dias Injector and the…
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Measuring the PSRR of Voltage References
In this article we detail the process of measuring a key performance characteristic of voltage references, power supply rejection ratio or “PSRR”, using the…
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Power Supply Crosstalk Measurement: Using the Bode 100 and the Picotest J2111A Current Injector
This application note shows how the crosstalk characteristic of a system of two linear voltage regulators can be measured using the OMICRON Lab Bode…
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New Technique for Non-Invasive Testing of Regulator Stability
Output impedance is the key to testing filter and regulator phase margin, even when the control loop is inaccessible. Many voltage regulators are of…
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A Simple Method to Determine ESR Requirements for Stable Regulators
A single, simple measurement is described that allows the determination of the ESR required to achieve a desired phase margin, using a particular value…
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Measuring Optocouplers with the J2130 DC Bias Injector and the OMICRON Lab Bode 100 VNA
Many power supplies use optocouplers in the feedback loop. The stability and overall performance of the power supply are often dependent on the CTR…
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Power Supply Measurement Techniques: Non-Invasive Phase Margin using the J2111A Current Injector
This instructional seminar shows power supply measurement techniques using Picotest Signal Injectors. Volume two discusses the Non-Invasive Phase Margin measurement of Voltage Regulators using…
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Reverse Transfer Measurement: Using the Bode 100 and the Picotest J2111A Current Injector
This application note shows how the reverse transfer characteristic of a linear voltage regulator (LM317) can be measured using the OMICRON Lab Bode 100…