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How to Build a Class-D Power Amp

How to Build a Class-D Power Amp

Learn how to build your own Class D power amplifier—one of the most efficient ways to listen to music.


Projects Aug 29, 2018 by Cezar Chirila
Choosing the Right Transistor: Understanding Dynamic MOSFET Parameters

Choosing the Right Transistor: Understanding Dynamic MOSFET Parameters

In this article, we’ll discuss MOSFET characteristics related to transient conditions and switch-mode operation.


Feeling Flashy? Tone It Down with the Gentleman Maker’s Raspberry Pi Colorboringizer

Feeling Flashy? Tone It Down with the Gentleman Maker’s Raspberry Pi Colorboringizer

In this episode of the Gentleman Maker, we'll use a Raspberry Pi 3 Model B, an Arduino Nano, and an Arduino Uno to create a handy system to rid ourselves of overly-colorful fashion choices.


Projects Jul 05, 2018 by Robin Mitchell
How to Select the Cutoff Frequency of Your Low-Pass Filter

How to Select the Cutoff Frequency of Your Low-Pass Filter

This article provides some tips on how to fine-tune the characteristics of a low-pass filter.


Basics of Phase Truncation in Direct Digital Synthesizers

Basics of Phase Truncation in Direct Digital Synthesizers

This article will discuss phase truncation in direct digital synthesizers.


A Simple, Compact Power Supply for Analog and Mixed-Signal Systems

A Simple, Compact Power Supply for Analog and Mixed-Signal Systems

This project demonstrates and discusses the performance and functionality of an inductorless ±5 V power-supply circuit.


Projects Jun 18, 2018 by Robert Keim
Understanding the Dynamic Range Specification of an ADC

Understanding the Dynamic Range Specification of an ADC

This article will discuss the dynamic range specification of an ADC.


Build Your Own Negative Voltage Generator

Build Your Own Negative Voltage Generator

Everyone needs a negative voltage rail eventually, but most only have a single rail supply. This project will show you how to build a negative voltage generator that runs off a single rail supply!


Projects Jun 07, 2018 by Robin Mitchell
PCB Layout for a Charge-Pump Bipolar Power Supply

PCB Layout for a Charge-Pump Bipolar Power Supply

In this article we’ll look at the PCB design for a low-noise ±5 V inductorless power supply.


Considerations for FPGA Implementation of Linear-Phase FIR Filters

Considerations for FPGA Implementation of Linear-Phase FIR Filters

This article will review considerations for efficient FPGA implementation of symmetric FIR filters.


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.


Boosting and Inverting without Inductors: Charge-Pump Power Supplies

Boosting and Inverting without Inductors: Charge-Pump Power Supplies

This article discusses charge-pump DC/DC converters and introduces a design for an inductorless bipolar power-supply circuit.


My 40-Year Love Affair with a Remarkable Amplifier—A Class B Amplifier for Audiophiles

My 40-Year Love Affair with a Remarkable Amplifier—A Class B Amplifier for Audiophiles

The Blomley amplifier was designed over forty years ago, is an alternative power amplifier design that suffers virtually no distortion, and provides a sound which has the presence often lacking in conventional amplifiers.


The PNP Transistor: Characteristics and Applications

The PNP Transistor: Characteristics and Applications

This article helps you understand what PNP transistors are, how they’re used, and why they’re less common than NPN transistors.


BJTs after Biasing: Analyzing BJTs with a Small-Signal Model

BJTs after Biasing: Analyzing BJTs with a Small-Signal Model

This article presents two circuits that can be used to analyze the small-signal behavior of a bipolar junction transistor.


Understanding the Early Effect

Understanding the Early Effect

This technical brief discusses the Early effect and how it influences the amplification characteristics of a bipolar junction transistor.


How to Low-Pass Filter a Square Wave

How to Low-Pass Filter a Square Wave

This article, part of AAC’s Analog Circuit Collection, presents a circuit that is a good choice when you need to remove high-frequency noise from a digital signal.


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.


One Circuit, Three Bode Plots: The Omnifilter

One Circuit, Three Bode Plots: The Omnifilter

This article, part of AAC’s Analog Circuit Collection, discusses a filter circuit that allows you to choose between a low-pass, a high-pass, and a band-pass response.


When a Diode Simply Isn’t Good Enough: The Superdiode

When a Diode Simply Isn’t Good Enough: The Superdiode

This article, part of AAC’s Analog Circuit Collection, discusses an interesting circuit in which an op-amp and an ordinary diode work together to create a superdiode.