Optimizing Power for Clocks and other Sensitive Applications
Click here to read the entire article. #noise #Crosstalk #powerintegrity #noisesensitivecircuit #signalanalyzers #decoupling #vrts3...
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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
Oct 30, 20141 min read
Paultre on Power – Steve Sandler of Picotest on power test and noise (Podcast)
October 31, 2014 In this podcast Steve Sandler of Picotest talks to Alix Paultre of Power Systems Design on the issues of power test,...
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Picotest
Oct 3, 20141 min read
Techniques for accurate PSRR measurements
By John Rice, System Engineer, Texas Instruments and Steve Sandler, Managing Director, Picotest Introduction In theory, measuring the...
77 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...
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Picotest
Feb 5, 20141 min read
Inside the 21st Century Power Test Lab
In this 5-minute video, Steve Sandler of AEi Systems (www.aeng.com) and Picotest (www.picotest.com) takes you on a tour of an advanced...
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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...
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Picotest
Jan 11, 20141 min read
Troubleshooting Distributed Power Systems: Making Time Domain Measurements (Part 8 – The final
He presents examples of various waveform anomalies and discusses techniques and tips for observing them as well as pitfalls to avoid....
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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...
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Picotest
Dec 10, 20131 min read
Troubleshooting Distributed Power Systems: Measuring Ripple (Part 7 of the ongoing series)
And by taking measurements across all three test domains, designers can trace power supply ripple-related problems back to root causes...
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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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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
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...
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Picotest
Oct 23, 20121 min read
Clock Power Optimization Depends On Jitter Control
Clock-jitter performance has become a top priority among clock, analog-to-digital controller (ADC), and power-supply manufacturers. Why?...
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Picotest
Sep 28, 20121 min read
Assessing Point-Of-Load Regulators Using Non-Invasive Techniques
Evaluating the stability of a Point-Of-Load (“POL”) regulator can be performed using both traditional Bode plot and output impedance...
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Picotest
Sep 27, 20121 min read
FAQ #22: So how does this non-invasive measurement relate to phase margin and gain margin?
We can equate the stability to an equivalent phase margin by assuming the magnitude of the gain vector to be 1 and solving for the Q. In...
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Picotest
Sep 18, 20121 min read
New Injector Supports Testing of POLs
High Fidelity POL Testing with the J2112A The J2112A: Faster, Non-Invasive, and High Fidelity POL Step Load Testing Testing the step load...
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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
Jul 9, 20121 min read
Essential Test Adapters for Your Network / Impedance Analyzer
The network analyzer, sometimes referred to as a Frequency Response Analyzer (FRA) is a common piece of equipment in most of our labs...
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