Bode Plots

Dec 27, 20211 min read

A Bode Plot Without Access to the Control Loop

November 23, 2021 Steve Sandler This extreme measurement seems more impossible than difficult. The traditional stability assessment...

154 views0 comments

Picotest

Sep 30, 20211 min read

DesignCon Digital 2021

October 5 & 6, 2021 "This online event from the producers of DesignCon features an education program with on-demand webinars presented by...

63 views0 comments

Tektronix Innovation Forum 2021 Sessions with Steve Sandler

Picotest

Sep 22, 20211 min read

Tektronix Innovation Forum 2021 Sessions with Steve Sandler

TDR Functionality for Power Integrity (30 mins) During this smart bar session, learn how to use TDR techniques to better understand power...

32 views0 comments

Picotest

Sep 22, 20211 min read

Solving Power Integrity Test Challenges with Guest Speaker for Q&A Steve Sandler of Picotest

Learn how to use the MSO6 Oscilloscope to measure input filter stability, PSRR, impedance, step load, inductors with DC bias, TDR, EMI,...

22 views0 comments

Tektronix App Note: Measuring the Control Loop Response of a Power Supply Using an Oscilloscope

Picotest

Apr 27, 20212 min read

Tektronix App Note: Measuring the Control Loop Response of a Power Supply Using an Oscilloscope

Most power supplies and regulators are designed to maintain a constant voltage over a specified current range. They are essentially...

191 views0 comments

Picotest

Apr 8, 20201 min read

The 5-Minute Method for Stabilizing Any Control Loop

By Steve Sandler | January 28, 2020 One method of designing stable control loops is to create an accurate broadband simulation model and...

164 views0 comments

Picotest

Apr 8, 20201 min read

Video: Measurement-Based, Harmonic Balance VRM Model

A presentation by Steven Sandler from Picotest, DgCon 2019 Modern high-performance power rail design requires high accuracy voltage...

49 views0 comments

Why Full VRM Characterization is Essential

Picotest

Aug 5, 20191 min read

Why Full VRM Characterization is Essential

Read the entire article here. #powerdistributionnetwork #noise #powerintegrity #ads #psrr #powersupply #inputimpedance...

9 views0 comments

Siglent App Note: Measuring Power Supply Control Loop Response with Bode Plot II

Picotest

Jun 28, 20191 min read

Siglent App Note: Measuring Power Supply Control Loop Response with Bode Plot II

In this application note, we will show you the basic principles for making this stability measurement and how to use these instruments to...

78 views0 comments

Picotest

Nov 2, 20171 min read

Bode Plots are Overrated

Control loop stability is critically important. But whether your focus is on power supply design, power integrity, or mixed-signal power...

32 views0 comments

Characterizing and Modeling Switch Mode Power Supplies (Mar 15)

Picotest

Apr 26, 20171 min read

Characterizing and Modeling Switch Mode Power Supplies (Mar 15)

Original air date: March 15, 2017 Why this Webcast is Important: Whether your power supply designs are based on switch mode or linear...

8 views0 comments

Picotest

Jan 29, 20161 min read

Killing the Bode Plot

Many new linear devices, including voltage references, voltage regulators and opamps have internal feedback loops, prohibiting...

54 views0 comments

Essential 1-Port PDN PROBE: Applications Abound

Picotest

Nov 14, 20141 min read

Essential 1-Port PDN PROBE: Applications Abound

BROWSER-CLASS PROBE Several companies manufacture and distribute high-frequency TDR probes. These probes are typically designed for very...

21 views0 comments

Picotest

Jul 1, 20142 min read

Three Stability Assessment Methods Every Engineer Should Know About

Many engineers are familiar with the Bode plot as an effective stability assessment method. However, some authors suggest and even teach...

12 views0 comments

Five Things Every Engineer Should Know About Bode Plots

Picotest

Jan 22, 20142 min read

Five Things Every Engineer Should Know About Bode Plots

In 1938 Hendrik Wade Bode, who worked at Bell Labs, published his asymptotic assessment of phase margin and gain margin, bearing his name...

71 views0 comments

Picotest

Nov 7, 20132 min read

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...

9 views0 comments

Picotest

Oct 30, 20132 min read

How To Verify Control Loop Design

The non-invasive stability assessment is a method that uses an output impedance measurement to accurately determine stability without...

9 views0 comments

Troubleshooting Distributed Power Systems: Impedance Is the Critical Measurement (Part 2 of the ongo

Picotest

Jun 11, 20131 min read

Troubleshooting Distributed Power Systems: Impedance Is the Critical Measurement (Part 2 of the ongo

As Sandler explains, analysis based on impedance measurements can more thoroughly assess control loop stability than Bode plot...

4 views0 comments

Troubleshooting Distributed Power Systems: Why Stability Matters (Part 1 of the ongoing video series

Picotest

May 15, 20131 min read

Troubleshooting Distributed Power Systems: Why Stability Matters (Part 1 of the ongoing video series

In this 5-minute video presentation, Steve Sandler discusses how stability impacts circuit performance, offering examples that...

4 views0 comments

Picotest

May 22, 20121 min read

When Bode Plots Fail Us

It may come as a surprise to some that a control loop’s Bode plot does not always depict the loop stability and that the output impedance...

41 views0 comments