Signal Integrity, Power Integrity, & EMC Blog

This blog discusses topics on simulation, measurement, and electromagnetic modeling

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All About the J2200A Optocoupler CTR Module

By Benjamin Dannan and Steven Sandler, Picotest.com Introduction and Application Optocouplers and optoisolators are very common...

Benjamin Dannan

Jul 24, 20245 min read

J2103A Power Stage Isolator Measuring PowerSupply Open-Loop and Control Loop Gain

Using the J2103A Power Stage Isolator to Measure PowerSupply Open-Loop and Control Loop Gain

By Benjamin Dannan and Steven Sandler, Picotest.com 1.0 Introduction and Application In the world of power electronics, the focus is on...

kathleen6681

Jul 14, 20247 min read

Elevate Your Testing Game with the Picotest S10 Transient Load Stepper

The S10 Stepper from Picotest is a GaN-enabled VRM+PDN Validator that packs a punch. It is a game changer for your PDN and PCB design.

Benjamin Dannan

Jun 1, 20242 min read

Unlocking Precision: Versatile Power Integrity Testing with the Picotest J2111B Current Injector

The J2111B current injector is possibly the most versatile of the Picotest Signal Injectors for power integrity and power electronics...

Benjamin Dannan

May 28, 20242 min read

The Challenge of Measuring a 40 uOhm (2000 Amp) PDN with a 2-Port Probe – The Measurement Result with another VNA!

Benjamin Dannan, Steve Sandler, and Heidi Barnes Part 3 of 3 This article is the third part of a 3-part series: Part 1 - How Much CMRR is...

Benjamin Dannan

Apr 17, 20245 min read

The Challenge of Measuring a 40 uOhm (2000 Amp) PDN with a 2-Port Probe – The Measurement Result!

Benjamin Dannan and Steve Sandler Part 2 of 3 This article is the second part of a 3-part series: Part 1 - How Much CMRR is Needed? Part...

Benjamin Dannan

Apr 4, 20244 min read

Low Noise Power Integrity Measurements - A Guide to Effective Probing with the MXO58 Oscilloscope

In this blog, we will examine the noise performance of various probing solutions with a Rohde & Schwarz (R&S) MXO 5 oscilloscope.

Benjamin Dannan

Mar 26, 20246 min read

Signal Edge Solutions Chief Technologist Wins DesignCon 2024 Best Paper Award

DesignCon 2024 just announced its Best Paper Awards winners, and Signal Edge Solutions' Chief Technologist, Benjamin Dannan was honored...

Benjamin Dannan

Feb 29, 20242 min read

The value of In-house EMC Pre-compliance Testing

INTRODUCTION - WHY DO WE CARE ABOUT EMC? Let’s consider a scenario, as depicted by Figure 1, where an autonomous cleaning robot is...

Benjamin Dannan

Feb 29, 20246 min read

The Challenge of Measuring a 40 uOhm (2000 Amp) PDN with a 2-Port Probe – How Much CMRR is Needed?

Benjamin Dannan and Steve Sandler Part 1 of 3 This article is the first part of a 3-part series: Part 2 - The Measurement Result! Part 3...

Benjamin Dannan

Feb 17, 20245 min read

Measuring Open-Loop Gain on your Power Stage or Power Supply and VRM

Struggling to measure the open-loop gain of your power supply? Introduction and Application In the world of power electronics, the focus...

Benjamin Dannan

Jan 21, 20247 min read

How to calculate the minimum spatial resolution of your TDR measurement setup?

Background A TDR measures the reflections that result from a signal traveling through a transmission environment of some kind - a circuit...

Benjamin Dannan

Jan 15, 20245 min read

Why Using a 2-Port Probe for PDN Impedance Measurement is Important for Power Integrity Engineers

Background Today, voltage regulator modules (VRM) (and power supplies) need to supply power to multiple VDD cores to support FPGAs and/or custom ASICs using multi-gigabit ethernet, PCIe, and DDR memory interfaces. With that being said, vendor information for a VRM’s output impedance is not available and is not always accurate when it is supplied. Further, measuring ultra-low impedance on multiple VRMs or multi-topology DC-DC regulators is a challenge for any design engineer.

Benjamin Dannan

Dec 10, 20233 min read