Oscilloscopes

Jan 25, 20222 min read

How Fast is the Switching Speed of a GaN Switch?

by Steve Sandler How fast is the world’s fastest GaN switch? It is an interesting question, and maybe is mostly wanted for bragging...

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Measuring the Bulk Dielectric Constant (Dk) on a Microstrip with a TDR

Picotest

Jan 10, 20221 min read

Measuring the Bulk Dielectric Constant (Dk) on a Microstrip with a TDR

by Benjamin Dannan and Steve Sandler Most modern circuit designs depend on accurate logic signals at the logic receiver. This assurance...

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How Can You Determine the Turns Ratio of a Power Transformer in a Sealed DC-DC Module?

Picotest

Dec 27, 20211 min read

How Can You Determine the Turns Ratio of a Power Transformer in a Sealed DC-DC Module?

by Steve Sandler I do not know if there was a legitimate reason for this request, but I was once asked to determine the turns ratio of a...

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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...

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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,...

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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...

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Measuring pH and fF With a TDR Using a Cursor Measurement

Picotest

Jan 14, 20211 min read

Measuring pH and fF With a TDR Using a Cursor Measurement

"The time domain reflectometer (TDR) is an instrument that is often used to measure printed circuit board (PCB) test coupons and cable...

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Picotest

Sep 30, 20201 min read

The Goldilocks TDR

Those that know me, know that I like things that, on a scale of one to ten, go to eleven. For the youngsters out there, see Spinal Tap,...

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Picotest

Apr 7, 20161 min read

Troubleshooting Clock Jitter and Identifying PDN Sensitivities

Power distribution network (‘PDN’) noise is one of the most common issues in low power applications. Whether you are powering ADCs,...

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Picotest

Feb 12, 20161 min read

Optimizing Arduino and the AD9851 DDS signal generator

Arduino has taken the product “maker” world by storm and one of the more popular Arduino modules is the Analog Devices AD9851 DDS...

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Match impedances when making measurements

Picotest

Aug 15, 20142 min read

Match impedances when making measurements

Recently, I used a shielded coaxial cable to measure power supply ripple and the results were even noisier than using an oscilloscope...

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Understanding Voltage Response Of An LC Circuit

Picotest

Mar 18, 20142 min read

Understanding Voltage Response Of An LC Circuit

For an undamped LC circuit excited by an AC voltage source through simple phaser equations, we come to see that the circuit becomes short...

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Troubleshooting Distributed Power Systems: Making Time Domain Measurements (Part 8 – The final

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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Troubleshooting Distributed Power Systems: The Switch (Part 6 of the ongoing series.)

Picotest

Nov 14, 20131 min read

Troubleshooting Distributed Power Systems: The Switch (Part 6 of the ongoing series.)

With those measurement requirements as background, Sandler examines how switching frequency and duty cycle affect power supply stability...

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PDN Issues Occur in the Simplest of Circuits

Picotest

Nov 7, 20131 min read

PDN Issues Occur in the Simplest of Circuits

A single tiny logic gate The first case we’ll look at is a Fairchild NC7SZ04 ultra-high-speed inverter gate. This logic gate is a single...

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Picotest

Sep 26, 20131 min read

Oscilloscope Mistakes: #4 (Part 4 of 4)

The engineering community uses oscilloscopes more than any other piece of equipment, yet many of the published results are questionable...

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Picotest

Sep 22, 20131 min read

Oscilloscope Mistakes: #3 (Part 3 of 4)

The engineering community uses oscilloscopes more than any other piece of equipment, yet many of the published results are questionable...

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Picotest

Sep 17, 20131 min read

Oscilloscope Mistakes: #2 (Part 2 of 4)

The engineering community uses oscilloscopes more than any other piece of equipment, yet many of the published results are questionable...

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Picotest

Sep 12, 20131 min read

Oscilloscope Mistakes: #1 (Part 1 of 4)

Avoiding these common pitfalls will get you better data with minimum effort. Steve Sandler takes a look at four common scope mistakes and...

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Picotest

Sep 10, 20131 min read

FAQ# 27: Why is PDN measured using a VNA and not an oscilloscope?

Steve Sandler Answers Your PDN Questions (Power Electronics’ Q&A Series) Power Electronics received a question about why PDN is measured...

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