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Understanding and Implementing Charge Amplifiers for Piezoelectric Sensor Systems

Understanding and Implementing Charge Amplifiers for Piezoelectric Sensor Systems

In this article we’ll explore a circuit that produces an output voltage proportional to the charge generated by a piezoelectric transducer.


Understanding and Modeling Piezoelectric Sensors

Understanding and Modeling Piezoelectric Sensors

This article explains some theory behind piezoelectric sensors and presents an equivalent circuit that you can use when you’re designing sensor systems.


How to Choose the Frequency of Your Switching Regulator

How to Choose the Frequency of Your Switching Regulator

This article discusses some details—efficiency, noise, etc.—that influence the choice of operational frequencies for switch-mode power supplies.


How to Design Schmitt Trigger Oscillators

How to Design Schmitt Trigger Oscillators

This article discusses the good and the bad regarding Schmitt Trigger RC oscillators. These oscillators are especially important because they are present in the internal oscillator in many popular MCUs.


Designing a Charge-Pump Bipolar Power Supply

Designing a Charge-Pump Bipolar Power Supply

This article presents and discusses a schematic design for a ±5 V inductorless power supply.


What Exactly Is a Quartz Crystal, Anyways? A Look at Quartz Crystal Oscillators

What Exactly Is a Quartz Crystal, Anyways? A Look at Quartz Crystal Oscillators

This article explains some theory behind an extremely common electronic component.


Power Hold-Up and Energy Storage Management Devices

Power Hold-Up and Energy Storage Management Devices

In this article, we discuss power hold-up and some energy storage management devices in the context of SSDs.


Separating Signal from Power: New Automotive Inductors from TDK

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.


Determining the Equivalent Series Resistance (ESR) of Capacitors

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.


Introduction to Low-Power Embedded Design

Introduction to Low-Power Embedded Design

Low power consumption has become an important design goal in many electronic systems. This article introduces essential concepts and techniques.


The Importance of Complex Conjugates

The Importance of Complex Conjugates

This article provides insight into the importance of complex conjugates in electrical engineering.


Analyzing Circuits via Source Transformation

Analyzing Circuits via Source Transformation

This article uses examples to explain the technique of source transformation.


Build Your Own Metal Detector with an Arduino

Build Your Own Metal Detector with an Arduino

Building a metal detector using a Colpitts oscillator and an Arduino.


Projects Oct 03, 2016 by Evan Kale
Inductor Out, Op-Amp In: An Introduction to Second-Order Active Filters

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.


AC-DC Converters - Disassembling a Linear Power Supply

AC-DC Converters - Disassembling a Linear Power Supply

An AC-DC wall adaptor gets disassembled to see what components are used to build it, then the purpose of each component is analyzed.


Practical PCB Layout Tips Every Designer Needs to Know

Practical PCB Layout Tips Every Designer Needs to Know

This article contains practical PCB layout tips that can help your PCB projects work correctly and reliably.


Clean Power for Every IC, Part 3: Understanding Ferrite Beads

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.


Clean Power for Every IC, Part 2: Choosing and Using Your Bypass Capacitors

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.


Clean Power for Every IC, Part 1: Understanding Bypass Capacitors

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.


Understanding Inductor Designs for Converters

Understanding Inductor Designs for Converters

A handy technical article demonstrating filter inductor design for boost converters, design of the coupled inductor for a two-output forward converter, and the design of flyback transformer in continuous conduction mode.