Components / Test Modeling

Covers component-level behaviour and modelling, including passive and active device characteristics, equivalent circuit models, and their impact on power integrity and system performance.

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Ultra-Low Insertion Inductance, Ultra-High-Bandwidth Resistors

Measuring current within a circuit enables optimization of system performance. This optimization may target operating efficiency — critical for mobile, portable, and wearable devices…
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Product
Examining power solutions for high-speed SoCs featuring multiphase buck converters

The rise in functions, processing power, and data rates makes power design for high-speed system-on-chips (SoCs) increasingly complex. Modern CPUs, GPUs, FPGAs, ASICs, and…
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Product
Analog Output Signal Modulated by VRMs

Masashi Nogawa’s latest article examines how the output noise signal of RF or analog electronic components is affected by disturbances in their power supply…
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Product
The Importance of PDN Testing (Impedance) and the Role of the Bode Analyzer

Components such as CPUs, GPUs, FPGAs, and ASICs demand clean and stable power supplies to function effectively, often across various operating conditions. This is…
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Product
Optimizing TDR Measurements: Picotest Solutions Integrated with Tektronix Oscilloscopes

At Picotest, we take pride in supporting Tektronix’s advanced TDR (Time Domain Reflectometry) setups with our high-performance J2154A PerfectPulse® Differential TDR and TDR probes.…
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Video
Mastering 2-Port Impedance Testing with Picotest Products

Accurate low and ultra-low impedance measurement is crucial for testing and modeling electronic components and for evaluating the performance of power distribution networks (PDNs).…
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Article
Mastering 1-Port Impedance Testing with Picotest Products

Accurate impedance measurement is fundamental to modeling electronic components and testing the stability and impedance of power systems. 1-port impedance testing is a widely…
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Article
How To Measure 3-Port Impedance with Picotest Products

The accurate measurement of impedance in electronic systems is crucial for ensuring stability, reliability, and performance. Among various techniques, 3-port impedance testing stands out…
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Article
Ultra-Low Impedance Measurement: Testing and Optimizing with the J2114A

Ultra-Low Impedance Measurement: Testing and Optimizing with the J2114A – High CMRR Isolation Amplifier – Ground Loop Breaker Testing ultra-low impedance is critical to…
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Article
Ferrites in PCB Design: What the Experts Say

“The best time to use a ferrite is never” Are you curious about the role of ferrite beads in PCB design? A thread posted…
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Video
High-Speed Transient-Load Steppers Test Power Integrity

January 19, 2024 Maurizio Di Paolo Emilio published on Power Electronics News High-speed transient-load steppers allow engineers to test and validate how well the PDN…
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Article
VRM Modeling and Stability Analysis for the Power Integrity Engineer

In the world of power electronics, the focus is on the power supply, and the load is modeled as a simple resistor. In the…
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Article
Picotest Pocket TDR Fills Important Niche

A time domain reflectometer (TDR) is generally a large, expensive benchtop instrument that measures impedance, PCB coupons, dielectric constants, PCB signal traces, interconnects, connectors,…
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Product
Power Integrity: Ensuring Clean and Stable Power Supplies

The stability and cleanliness, from a noise perspective, of power sources are vital for the reliable operation of modern electronics. Power Integrity (‘PI’), is…
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Article
Load Regulation, Vout/Iout, and Output Impedance

Published October 6, 2023 Masashi Nogawa, Sr. Member of Technical Staff, Qorvo In this article, we’re taking a short break from talking about Power…
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Article
If You Design Anything with a Power Supply, You Need a Vector Network Analyzer

When it comes to designing electronic circuits and systems, ensuring stability, quality, and reliable operation is paramount. If your projects involve power supplies, voltage…
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Product
Make Accurate Impedance Measurements Using a VNA

Three different methods can be applied to accurately measure passive components with a vector network analyzer. By Brian Walker Related To:Copper Mountain Technologies “A…
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Article
Picotest Releases Unique and Versatile PCB Clamping Solution

We have released a new, hyper-versatile, and handy clamping solution for printed circuit board soldering, testing, assembly, and probing. “Compared to ClampMan, hands-free clamping…
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Article
New Fast Edge TDR in a Portable Package Supports PCB Coupon Testing and Instrument Calibration

We have released a new, low-cost, pocket-sized, fast-edge signal generator and TDR in one convenient package. “Such a high speed, precise TDR/TDT has never…
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Product
Designing High Current 48V to Core Voltage Converters

To reduce power consumption, easing cooling requirements, large computer designers are migrating from 12V to core voltage power solution to 48V to core voltage…
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Article
Switched-Mode Power Supply Simulation with SPICE:

February 2, 2018, Phoenix, Arizona: In a reprint of Steve Sandler’s classic technical book, PWM models and power supply simulation solutions are described in depth–with…
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Article
2-port Dembed with Picotest 2-Port Probe Video

This video shows how to measure low-impedance components and voltage regulator impedance using the Bode 100 and the Picotest P2101A 2-Port Probe. Related Products…
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Video
How Does a Prototyping-Only Approach Impact Product Design?

Article by Sam Davis | Power Electronics One in 10 design engineers still rely on purely physical prototypes, potentially adding significant, unnecessary costs to their designs, according…
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Article
Impedance measurements stabilize op-amp buffers

The unity-gain op amp (operational amplifier) buffer circuit is routinely used to transform high-impedance inputs into low-impedance outputs. ADC (analog-to-digital converter) voltage references are…
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Article
PDN Basics – Paralleling Tantalum and Ceramic Capacitors Can Be Risky

Paralleling capacitors to achieve high frequency sideband decoupling must take into account the performance characteristics of individual capacitors. 1.470 tantalum capacitor is installed in…
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Article
How To Verify Control Loop Design

The non-invasive stability assessment is a method that uses an output impedance measurement to accurately determine stability without access to the control loop. The…
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Article
Troubleshooting Distributed Power Systems: Measuring Impedance Using VNAs (2-Port) (Part 4 of the ongoing video series.)

As Part 3 of this video series explained, recently introduced vector network analyzers (VNAs) have made it possible for these frequency domain instruments to…
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Video
Troubleshooting Distributed Power Systems: Measuring Impedance Using Vector Network Analyzers (One-Port Tests) (Part 3 of the ongoing video series.)

Vector network analyzers (VNAs) have always had measurement capabilities that looked like they would be particularly useful in assessing the performance of analog and…
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Video
Sharpen Rising and Falling Edges

Wherever you find a digital control signal, you find sharp rising and falling edges that need characterization. These edges occur on switching power supplies…
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Article
Selecting Test Signal Injectors

A number of test signal injectors are used when evaluating the performance of power supplies and other low-frequency components with a network analyzer. Network…
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Article
These Seven Trends May Change Power Design Dramatically

New power semiconductor technologies such as silicon carbide (SiC) and gallium nitride (GaN) promise to rewrite the record books with respect to power supply…
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Article
An Accurate Method For Measuring Capacitor ESL

The equivalent series inductance (ESL) of chip capacitors is becoming an increasingly important parameter as bandwidths and switching frequencies rise in many high-performance systems.…
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Article
Generating Stable Voltage For Multiple Applications

Understanding the key parameters of diodes and other components used in reference voltage circuits can help avoid issues in different application circuits across many…
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Article

Components / Test Modeling

Ultra-Low Insertion Inductance, Ultra-High-Bandwidth Resistors

Examining power solutions for high-speed SoCs featuring multiphase buck converters

Analog Output Signal Modulated by VRMs

The Importance of PDN Testing (Impedance) and the Role of the Bode Analyzer

Optimizing TDR Measurements: Picotest Solutions Integrated with Tektronix Oscilloscopes

Mastering 2-Port Impedance Testing with Picotest Products

Mastering 1-Port Impedance Testing with Picotest Products

How To Measure 3-Port Impedance with Picotest Products

Ultra-Low Impedance Measurement: Testing and Optimizing with the J2114A

Ferrites in PCB Design: What the Experts Say

High-Speed Transient-Load Steppers Test Power Integrity

VRM Modeling and Stability Analysis for the Power Integrity Engineer

Picotest Pocket TDR Fills Important Niche

Power Integrity: Ensuring Clean and Stable Power Supplies

Load Regulation, Vout/Iout, and Output Impedance

If You Design Anything with a Power Supply, You Need a Vector Network Analyzer

Make Accurate Impedance Measurements Using a VNA

Picotest Releases Unique and Versatile PCB Clamping Solution

New Fast Edge TDR in a Portable Package Supports PCB Coupon Testing and Instrument Calibration

Designing High Current 48V to Core Voltage Converters

Switched-Mode Power Supply Simulation with SPICE:

2-port Dembed with Picotest 2-Port Probe Video

How Does a Prototyping-Only Approach Impact Product Design?

Impedance measurements stabilize op-amp buffers

PDN Basics – Paralleling Tantalum and Ceramic Capacitors Can Be Risky

How To Verify Control Loop Design

Troubleshooting Distributed Power Systems: Measuring Impedance Using VNAs (2-Port) (Part 4 of the ongoing video series.)

Troubleshooting Distributed Power Systems: Measuring Impedance Using Vector Network Analyzers (One-Port Tests) (Part 3 of the ongoing video series.)

Sharpen Rising and Falling Edges

Selecting Test Signal Injectors

These Seven Trends May Change Power Design Dramatically

An Accurate Method For Measuring Capacitor ESL

Generating Stable Voltage For Multiple Applications