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Passives Technical Articles
Test & Measurement
Safety Capacitors First: Class-X and Class-Y Capacitors
Learn about Class-X and Class-Y capacitors, where they are used, and why they are referred to as "safety" capacitors.
July 06, 2017
Separating Signal from Power: New Automotive Inductors from TDK
Inductors such as the ADL3225V devices are useful when you want to use just one conductor to transfer both signal and power.
May 10, 2017
Less EMI, More Available Board Space: A New Passive Filter from TDK
Why install three components when you could use one instead? You can simplify your layout with single-component passive filters, such as the MEM1005PP251T from TDK....
April 19, 2017
Determining the Equivalent Series Resistance (ESR) of Capacitors
Learn more about the importance of capacitor ESR, how to measure it, and what factors can affect your measurements.
March 31, 2017
Understanding Current-Voltage Curves of Non-Linear Devices
This article discusses the I-V curves of passive non-linear devices such as diodes, transistors, and thyristors.
January 09, 2017
Understanding Current-Voltage Curves
This article discusses I-V curves for passive components, voltage sources, and current sources.
December 27, 2016
Analyzing Circuits via Source Transformation
This article uses examples to explain the technique of source transformation.
November 01, 2016
Inductor Out, Op-Amp In: An Introduction to Second-Order Active Filters
In this article, we’ll compare active and passive filters and look at some common second-order active topologies.
May 19, 2016
Why the Capacitor in Your Power Supply Filter is Too Big
The job of the capacitor in the output filter of a DC power supply is to maintain a constant DC value by removing as much power ripple as possible. Because these capacitors have a DC value,...
January 21, 2016
Introduction to the Transmission Line
Explanation of what a transmission line is, and the conditions under which it exists. Uses lumped element model to derive differential equations and manipulates the equations to get telegraph...
November 12, 2015
Choosing and Using Ferrite Beads
This article provides practical guidance on using ferrite beads to improve your PCB’s power quality.
October 11, 2015
Clean Power for Every IC, Part 3: Understanding Ferrite Beads
Ferrite beads used in conjunction with bypass capacitors can provide improved power-supply filtering and decoupling.
September 30, 2015
Clean Power for Every IC, Part 2: Choosing and Using Your Bypass Capacitors
Proper component selection and careful PCB layout are integral to power supply bypassing.
September 27, 2015
Clean Power for Every IC, Part 1: Understanding Bypass Capacitors
A thorough understanding of bypass capacitors will help you to properly incorporate these critical components into your designs.
September 21, 2015
Special Cases in Nodal Analysis
This article describes certain special cases when performing nodal analysis.
July 09, 2015
Mesh Analysis and Dependent Sources
This article describes the technical aspects of Performing Mesh analysis with Dependent Sources.
July 08, 2015
Intro to Magnetic Devices and the Science Behind Them
Magnetic devices shape our world: they power our homes, tools, toys, and they even store our data. Quantum physics provides insights needed to understand magnetism and its relationship to the...
July 07, 2015
Resistance in Parallel Networks
Parallel circuits are one of two fundamental circuit configurations we come across every day. Like a parallel universe, parallel circuits and networks can give us unexpected results. Adding...
June 30, 2015
Beyond the DMM: Components and Circuits for Measuring Current and Voltage
Learn about devices and techniques used for in-circuit monitoring of currents and voltages.
June 27, 2015
Voltage and Current Dividers: What They Are and What They Do
This article describes what voltage and current dividers are and how they can be used.
June 26, 2015
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