How Can You Measure a HUGE Inductance with DC Bias?
by Steve Sandler Published by Signal Integrity Journal, May 19, 2022 Most DC/DC converters and switching voltage regulators use filter...
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Picotest
- May 4, 2022
- 1 min
The Ultimate Power Rail Noise Measurement
by Steve Sandler Published by Signal Integrity Journal, May 5, 2022 I receive many questions about measuring power rail noise: Do I...
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Picotest
- Dec 2, 2021
- 2 min
Why EM Is Replacing SPICE For Simulation of Board-Level Power Delivery
How2Power.com - November 2021 by Heidi Barnes, Keysight Technologies, Santa Rosa, Calif. and Steve Sandler, Picotest, Phoenix, Ariz....
161 views0 comments
Picotest
- Jan 14, 2021
- 1 min
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...
57 views0 comments
Picotest
- Apr 8, 2020
- 1 min
Just How Fast is GaN Fast?
By Steve Sandler | March 12, 2020 “I recently designed an ultra-high speed, low-impedance pulse generator (Figure 1). I wanted it for...
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Picotest
- Jun 27, 2019
- 1 min
Measuring a Scope Probe Requires Two Oscilloscope Channels and a Very Flat Signal Source
Oscilloscope users can also calibrate their passive oscilloscope probes, though the process is much less sophisticated and for lack of a...
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Picotest
- Apr 28, 2017
- 1 min
Designing Power for Sensitive Circuits
What is a sensitive circuit? Sensitive circuits are those that can easily be degraded by power supply noise. These circuits generally...
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Picotest
- Apr 26, 2017
- 1 min
Top Three EMI and Power Integrity Problems with On-Board DC-DC Converters and LDO Regulators
Kenneth Wyatt Wyatt Technical Services, LLC ken@emc-seminars.comSteve Sandler Picotest steve@picotest.com Modern devices are...
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Picotest
- Feb 12, 2016
- 1 min
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...
25 views0 comments
Picotest
- Feb 12, 2016
- 1 min
Power Integrity: It’s not just decoupling caps
Read more here #vrm #design #flatimpedance #powerintegrity #articles #roguewaves #capacitors #picotest #pdn #regulator #targetimpedance
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Picotest
- Nov 13, 2015
- 2 min
How to measure the world’s fastest power switch
Gallium Nitride (GaN) FETS are poised to replace silicon power devices in voltage regulators and DC-DC power supplies. Their switching...
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Picotest
- Oct 8, 2014
- 1 min
Simple trick to measure plane impedance with a VNA
Having said all of this, the measurement of a PCB plane using a VNA may not be as straightforward as you might expect. One simple trick...
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Picotest
- Aug 15, 2014
- 2 min
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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Picotest
- Jun 19, 2014
- 1 min
Improve Performance And Reduce Cost
Engineers are under constant pressure to improve the performance of their products while reducing product cost. The key to doing so is a...
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Picotest
- Jun 4, 2014
- 1 min
SPICE models need correlation to measurements
Many SPICE models are available online that were created by IC and semiconductor manufacturers. Unfortunately, availability doesn’t...
11 views0 comments
Picotest
- Apr 23, 2014
- 1 min
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,...
37 views0 comments
Picotest
- Mar 31, 2014
- 1 min
PCB characteristics affect PDN performance
Since no impedance path is perfectly flat, we need to make some design adjustments. This article aims to help you make compromises that...
14 views0 comments
Picotest
- Mar 19, 2014
- 1 min
Measure PDN on a budget
There are many good analyzers available for measuring PDN High performance VNAs are available from all of the major test equipment...
15 views0 comments
Picotest
- Mar 18, 2014
- 2 min
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...
12 views0 comments
Picotest
- Feb 5, 2014
- 1 min
Measure small impedances with Rogowski current probes
You’re probably familiar with clamp on current probes, but chances are you don’t know much about the Rogowski current probe. A Rogowski...
40 views0 comments
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