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Analyzing a Negative Voltage Charge Pump in LTspice—Source and Load Resistance

Analyzing a Negative Voltage Charge Pump in LTspice—Source and Load Resistance

Learn about using LTspice simulations to provide important insight into the performance of a switched-capacitor voltage-inverting power supply.


A Primer on Power and EM Side-channel Attack Countermeasures and Prevention

A Primer on Power and EM Side-channel Attack Countermeasures and Prevention

Get a high-level understanding of designing electronics to prevent the threat of side-channel attacks (SCAs), namely power- and EM- (electromagnetic) based attacks.


Understanding the RF Noise Figure Specification

Understanding the RF Noise Figure Specification

Take a closer look at the definition of the RF noise figure and discuss some subtleties to help avoid erroneous interpretations of this specification.


Exploring Single Stub Impedance Matching Through Smith Chart Examples

Exploring Single Stub Impedance Matching Through Smith Chart Examples

Learn about impedance matching using a single stub, transmission lines, and immittance Smith chart examples.


Designing a Wideband Analog Voltage and Current Meter

Designing a Wideband Analog Voltage and Current Meter

Design a wideband analog multimeter to measure AC voltages and currents from 20 Hz to 1 MHz with a selectable sensitivity from 1 mV to 100 V, while the ammeter has a selectable current sensitivity of 10 mA to 10 A.


Projects May 03, 2023 by John Woodgate
Understanding Limitations to Increasing SFDR in High-speed ADCs

Understanding Limitations to Increasing SFDR in High-speed ADCs

Learn about two nonlinearity sources, spurious-free dynamic range (SFDR), and SNR (signal-to-noise ratio) in analog-to-digital converters (ADCs).


A Beginners Guide to Debugging Embedded Systems: 3 Steps to Find Bugs Quickly

A Beginners Guide to Debugging Embedded Systems: 3 Steps to Find Bugs Quickly

Learn about debugging embedded systems using a simple 3-step method called DDT (design documentation and testing) and the general challenges facing embedded code debugging. 


Introduction to Impedance Matching Using Transmission Line Elements

Introduction to Impedance Matching Using Transmission Line Elements

Learn about an impedance-matching technique using transmission line elements.


Learn Stub Tuning With a Smith Chart

Learn Stub Tuning With a Smith Chart

Learn about impedance matching stub tuning using a Smith chart, as well as single and double stub tuning, impedance contour, and the "forbidden region" of a Smith chart.


A Brief Introduction to Slot Antennas

A Brief Introduction to Slot Antennas

Learn about slot antennas, namely their history, characteristics, and electromagnetic (EM) behavior for low-voltage, small-form-factor electronic devices.


Designing L-type Matching Networks Using Series and Parallel RC and RL Circuits

Designing L-type Matching Networks Using Series and Parallel RC and RL Circuits

Learn about l-type impedance matching equations through the quality factor (Q factor) of RC and RL circuits and the series-parallel conversion of these circuits.l-


Using the Smith Chart to Design a T and Pi Matching Network

Using the Smith Chart to Design a T and Pi Matching Network

Learn more about L-sections and impedance matching by designing T and Pi matching networks using a Smith chart.


Creating a DCO-based Audio Synthesizer With an Arduino Nano

Creating a DCO-based Audio Synthesizer With an Arduino Nano

In this project, learn to create a digitally-controlled oscillator or DCO-based audio synthesizer with an Arduino Nano or an Arduino Uno.


Projects Apr 09, 2023 by Darby Hewitt
L-type Matching Network Basics—Examining L Network Frequency Response and Bandwidth

L-type Matching Network Basics—Examining L Network Frequency Response and Bandwidth

Learn about two-element networks (L-sections or L-networks), how they transform one impedance to another, their frequency response, estimating their bandwidth, and their limitations leading to T networks.


Can Voltage Be Negative? Understanding Negative Voltage

Can Voltage Be Negative? Understanding Negative Voltage

In addition to explaining the nature of a negative voltage, this article briefly discusses how negative voltages are generated and why they are useful in circuit design.


Design a Two-element Matching Network Using the ZY Smith Chart

Design a Two-element Matching Network Using the ZY Smith Chart

Learn about the immittance Smith chart (ZY Smith chart), the effect of adding series and parallel components, impedance matching, and finding a two-element matching network.


An Introduction to Power Analysis Side Channel Attacks

An Introduction to Power Analysis Side Channel Attacks

Learn the basics of how power-based side-channel attacks work and the different types of power analysis attacks, including simple power analysis (SPA), differential power analysis (DPA), and correlational power analysis (CPA).


Analyze RLC Components Using the Admittance Smith Chart and Examples

Analyze RLC Components Using the Admittance Smith Chart and Examples

Learn about the admittance Smith chart to analyze a parallel connection of resistors, capacitors, and inductors, and see the circuit's behavior over the swept frequency range.


Multiphase DC-DC Converter Pros and Cons

Multiphase DC-DC Converter Pros and Cons

This article will help you decide when to consider a multiphase approach to step-down, switch-mode voltage regulation.


Learn by Example—Using an Impedance Smith Chart

Learn by Example—Using an Impedance Smith Chart

Learn how a series RLC circuit with arbitrary component values can be represented as a point on the Smith chart and how an impedance contour on the Smith chart can be used to describe the circuit's frequency response.