Podcast with Steve Sandler: How To Measure Controlled Loop Stability and 12-Week Online Master Class
Judy Warner of The EEcosystem discusses with Steve Sandler the tool he developed called the Non-Invasive Stability Measurement Tool and...
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Picotest
Jun 14, 20221 min read
Tektronix Innovation Forum 2022 Session with Steve Sandler
Making Power Distribution Network Measurements with Confidence (22 mins) Power Distribution Networks (PDNs) are powering FPGAs,...
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Picotest
Apr 18, 20221 min read
The Simple Truth about Complex Impedance Probes
by Steve Sandler Originally presented at the 11th Power Analysis & Design Symposium (Live Virtual Event), March 9, 2022 Picotest Power...
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Picotest
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...
151 views0 comments
Picotest
Sep 9, 20211 min read
App Note: 2-Port Impedance Measurement using the P2102A Probe and ZNL6 VNA
By Benjamin Dannan and Steven Sandler, Picotest.com High speed Printed Circuit Board (PCB) design requires well designed Power Delivery...
35 views0 comments
Picotest
Sep 9, 20211 min read
App Note: 2-Port Impedance Measurement using the P2102A Probe and Copper Mountain Tech 2-Port VNA
By Benjamin Dannan and Steven Sandler, Picotest.com, and Subbaiah M. Pemmaiah, Coppermountaintech.com High speed Printed Circuit Board...
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Picotest
May 25, 20211 min read
Power Integrity Assessment and Optimization in the Frequency Domain
IEEE MTT-S Latin America Microwave Conference: https://lamc-ieee.org/ Registration: http://bit.ly/lamc-2021-sandler Full Program:...
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Picotest
Mar 11, 20212 min read
App Note: 2-Port Impedance Measurement using the P2102A Probe and Bode 100 VNA
By Benjamin Dannan and Steven Sandler, Picotest.com High speed Printed Circuit Board (PCB) design requires well designed Power Delivery...
238 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...
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Picotest
Jun 20, 20171 min read
Introduction to NISM – Non-Invasive Stability Measurement with Steve Sandler
More information on this revolutionary measurement technology can be found here: https://www.picotest.com/non-invasive-stability-measurem...
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Picotest
Nov 29, 20161 min read
Introduction to Power Integrity – Video
Steve Sandler of Picotest and Heidi Barnes of Keysight teach this short course on Power Integrity. This is part 1 (~90 min) as presented...
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Picotest
Jan 12, 20152 min read
Impedance measurements stabilize op-amp buffers
Figure 1. Op amps are often used as unity gain signal buffers, which are not as simple to use as it may appear. The unity-gain op amp...
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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...
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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...
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Picotest
Apr 23, 20141 min read
Software Enables Accurate Stability Test, Improves Non-Invasive Phase Margin Measurement Accuracy
The mathematics behind the non-invasive measurement was incorporated into the OMICRON Lab Bode 100 VNA software, sold by Picotest.com,...
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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
Jan 6, 20141 min read
Non-Invasively Assess Your Multiple-Loop LDO’s Stability
Some low-dropout regulators (LDOs) use multiple feedback loops to improve output voltage transient response. In many of these cases, some...
27 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 7, 20131 min read
Troubleshooting Distributed Power Systems: Using Current Injectors (Part 5 of the ongoing video seri
Although not quite as accurate as the two-port VNA impedance measurement, the current injection technique has advantages including wide...
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Picotest
Aug 27, 20131 min read
How to Solve 8 of 10 Design Issues
The vast majority of design issues are directly or indirectly attributable to control loop stability. The most common offenders: Linear...
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