Hands-On VRM Modeling and Decoupling Optimization Workshop (1-day)

Course Overview

This advanced one day workshop builds on the fundamentals established in the Hands-On Power Integrity 2-day Workshop and covers different, complementary material. Attendance at the 2-day workshop is optional and not a pre-requisite for taking this 1-day workshop, though knowledge of the core power integrity concepts is extremely helpful. It seems that almost all circuits today include high speed devices including FPGAs, memory, CPUs, and data transceivers. Meeting the power quality requirements of these devices is a major challenge. Continuously increasing edge speeds, decreasing rail voltages and shorter design cycles increase the challenges. Multilayer circuit boards are required, expensive and the fabrication cycle is long, so we need to minimize the number of printed circuit board revisions. There are so many voltage regulators to choose from, how do we either select one or design one, especially when so few component details are provided by the manufacturers? This VRM modeling and decoupling seminar addresses all of these issues in four sections.

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Workshop Schedule

Location Dates Time Early Registration Price Registration
TBD TBD TBD $750 USD Currently Closed
TBD TBD TBD $750 USD Currently Closed
TBD TBD TBD $750 USD Currently Closed

* Note: Location is TBD and will be confirmed shortly.

What You Will Learn

  • Advanced understanding of power integrity and the role of the VRM, the printed circuit board and decoupling
  • S-parameters, capacitor measurement and parameter extraction
  • VRM characteristics and extraction of a measurement based model
  • A simple guide to printed circuit board decoupling and how the VRM can make life difficult


  • Learn advanced Power Integrity concepts, focusing on the process of modeling the VRM (Voltage Regulator Module) and power supply decoupling.
  • Learn why the Voltage Regulator Module (VRM) is a fundamental element in the Power Distribution Network (PDN) with system level consequences heavily impacting Power Integrity.
  • You will be guided through all measurement and simulation steps required to generate a measurement based VRM model.
  • Each theory step is followed by practical measurements performed in small groups.

Hands-On Measurements

  • Measuring cables, transmission lines, and PCB striplines
  • Characterizing capacitors using 1 and 2 port impedance measurements including the capacitor mount
  • Measuring VRM output impedance and PSRR to make a model
  • Measuring and Optimizing Decoupling
  • Understanding DC Blocks and the 2-Port Shunt Thru Test Setup
  • Clock Jitter Troubleshooting

Test equipment will be provided for the hands-on portion of the class. Includes Oscilloscopes, VNAs, Spectrum Analyzers, EMI and PDN probes, and other support instruments. VRTS3 Boards, Flat Impedance Boards, and Decoupling Kits will also be made available for class usage.

Target Audience: Anyone involved with designing or utilizing power systems, anyone using or designing voltage regulators, linear or switching. Attendee should be an electrical or test engineer.

Class Materials
  • Class Notes and Slides
  • Hands-On Lab Exercises

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