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...
top of page
PICOTEST ONLINE
Learn How to Test Power Supplies and Distributed Power Systems
Search
Picotest
May 4, 20221 min read
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...
25 views0 comments
Picotest
Dec 2, 20212 min read
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....
163 views0 comments
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...
62 views0 comments
Picotest
Apr 8, 20201 min read
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...
20 views0 comments
Picotest
Jun 27, 20191 min read
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...
16 views0 comments
Picotest
Apr 28, 20171 min read
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...
3 views0 comments
Picotest
Apr 26, 20171 min read
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...
29 views0 comments
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...
27 views0 comments
Picotest
Feb 12, 20161 min read
Power Integrity: It’s not just decoupling caps
Read more here #vrm #design #flatimpedance #powerintegrity #articles #roguewaves #capacitors #picotest #pdn #regulator #targetimpedance
10 views0 comments
Picotest
Nov 13, 20152 min read
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...
5 views0 comments
Picotest
Oct 8, 20141 min read
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...
43 views0 comments
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...
7 views0 comments
Picotest
Jun 19, 20141 min read
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...
1 view0 comments
Picotest
Jun 4, 20141 min read
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, 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,...
37 views0 comments
Picotest
Mar 31, 20141 min read
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...
15 views0 comments
Picotest
Mar 19, 20141 min read
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...
16 views0 comments
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...
12 views0 comments
Picotest
Feb 5, 20141 min read
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
bottom of page