Ultra-low Impedance Testing Using the 2-Port Shunt-Through Measurement Technique
Click here to read the entire article. #powerdistributionnetwork #groundloop #powerintegrity #J2113A #2portshunt #e5061b #j2102a...
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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
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...
17 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...
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Picotest
Nov 19, 20151 min read
Flat Impedance in Voltage Regulator Modules
Today’s high speed systems require clean power under challenging conditions. Extremely fast current transients and high voltage stability...
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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...
16 views0 comments
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
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...
7 views0 comments
Picotest
Sep 8, 20131 min read
Troubleshooting Distributed Power Systems: Measuring Impedance Using VNAs (2-Port) (Part 4 of the on
Shunt through, wideband measurements can be made from approximately 100 microohms to a few ohms. This is the measurement performed by...
11 views0 comments
Picotest
Aug 16, 20131 min read
Troubleshooting Distributed Power Systems: Measuring Impedance Using Vector Network Analyzers (One-P
This video focuses on single-port measurements, describing how they can be applied to low power circuits such as linear regulators,...
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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...
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Picotest
Sep 18, 20122 min read
FAQ #21: How do you use the Picotest injectors and the Agilent analyzer to measure output impedance
How do you use the Picotest injectors and the Agilent analyzer to measure output impedance and/or non-invasive step loading? For the...
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Picotest
Mar 1, 20121 min read
Introduction to the J2110A Solid State Injector
Introduction Most of us have experience using a wideband signal injection transformer to introduce a modulation signal into our loop...
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Picotest
Sep 1, 20111 min read
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...
106 views0 comments
Picotest
Jun 9, 20111 min read
Powering RF and Microwave Systems
RF/microwave design engineers faced with developing effective power circuits for a system require more complete data sheets, appropriate...
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Picotest
Feb 7, 20111 min read
Step-by-Step Guide to Measuring PSRR Using a Network Analyzer and the Line Injector
Click here to read the entire article. #e5061b #j2120a #psrr #applicationnotes #bode100 #picotest
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Picotest
Nov 26, 20101 min read
Why Network Analyzer Signal Levels Affect Measurement Results
When measuring a circuit or device with our network analyzers, engineers generally inject a signal and believe that the measured results...
28 views0 comments
Picotest
Jan 1, 20101 min read
FAQ #9: My Bode plot doesn’t look right, what am I doing wrong?
My Bode plot doesn’t look right, what am I doing wrong? The most common error made when measuring Bode plots is that the signal is too...
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