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Unraveling the Design Equations of the Class E Power Amplifier

Unraveling the Design Equations of the Class E Power Amplifier

In this article, we analyze the operation of the Class E amplifier and examine the underlying assumptions of its design equations.


Load Network Response and Design Equations for the Class E Power Amplifier

Load Network Response and Design Equations for the Class E Power Amplifier

Designing a Class E RF amplifier? Learn how to choose the correct level of damping and calculate the optimum component values for your circuit.


Class E Power Amplifiers: Waveform Engineering for Superior Performance

Class E Power Amplifiers: Waveform Engineering for Superior Performance

Class E RF amplifiers are designed to produce switch waveforms with a specific set of characteristics. In this article, we discuss the advantages and limitations of these waveforms.


Introduction to the Class E Power Amplifier

Introduction to the Class E Power Amplifier

Learn how Class E amplifiers improve on the efficiency of Class D amplifiers at RF frequencies.


Understanding the Transformer-Coupled Current-Switching Class D Amplifier

Understanding the Transformer-Coupled Current-Switching Class D Amplifier

In this article, we’ll learn about the transformer-coupled current-switching Class D amplifier. Once we understand its operation, we'll compare its performance with two voltage-switching Class D configurations.


Understanding the Transformer-Coupled Voltage-Switching Class D Amplifier

Understanding the Transformer-Coupled Voltage-Switching Class D Amplifier

In this article, we'll learn how the transformer-coupled voltage-switching Class D amplifier works and highlight some of its advantages.


Understanding Class D Amplifier Non-Idealities: Reactive Loads and Parasitic Capacitances

Understanding Class D Amplifier Non-Idealities: Reactive Loads and Parasitic Capacitances

In this article, we'll learn about two important non-idealities of Class D power amplifiers and how they affect performance.


Understanding the Effect of Diode Reverse Recovery in Class D Amplifiers

Understanding the Effect of Diode Reverse Recovery in Class D Amplifiers

With the help of SPICE simulations, this article explores the impact of diode reverse recovery on Class D amplifier performance.


Why Class D Amplifiers Need Anti-Parallel Diodes

Why Class D Amplifiers Need Anti-Parallel Diodes

Learn how anti-parallel diodes protect Class D amplifiers from the effects of reactive loads and inductive kickback.


Introduction to Switching-Mode Power Amplifiers: Class D Operation

Introduction to Switching-Mode Power Amplifiers: Class D Operation

In this article, we'll learn the basics of switching-mode RF amplifiers in general and Class D amplifiers in particular.


Understanding the Limitations of the Class C Power Amplifier

Understanding the Limitations of the Class C Power Amplifier

In this article, we explore the drawbacks of Class C operation through a performance comparison with Class A and Class B amplifiers.


Rohm Announces the ‘Industry’s Smallest’ CMOS Op Amp

Rohm Announces the ‘Industry’s Smallest’ CMOS Op Amp

Rohm designed the new 0.88 mm x 0.58 mm rail-to-rail op amp for devices where space is at a premium, such as smartphones and IoT devices.


News Aug 08, 2024 by Duane Benson
Introduction to the Common-Drain Amplifier: Small-Signal Behavior

Introduction to the Common-Drain Amplifier: Small-Signal Behavior

The common-drain amplifier is a single-stage configuration that uses the gate as its input and the source as its output. Learn about its small-signal characteristics in this article.


Introduction to the Common-Drain Amplifier: Large-Signal Behavior

Introduction to the Common-Drain Amplifier: Large-Signal Behavior

Also known as the source follower, the common-drain amplifier is notable for its low output impedance. This article introduces the basic common-drain configuration and examines its large-signal characteristics.


MIT’s Implantable Microphone May Lead to Internal Cochlear Implants

MIT’s Implantable Microphone May Lead to Internal Cochlear Implants

The new tiny biocompatible sensor may overcome one of the last cochlear implant hurdles.


News Jul 08, 2024 by Duane Benson
Op Amps From ST, TI, and Rohm Vault Analog Design Challenges

Op Amps From ST, TI, and Rohm Vault Analog Design Challenges

Analog designers rejoice! ST, TI, and Rohm have released new op amps to address unique analog pain points.


News Jul 05, 2024 by Aaron Carman
Simulating MOSFET Current-Voltage Characteristics Using Advanced SPICE Models

Simulating MOSFET Current-Voltage Characteristics Using Advanced SPICE Models

In this article, we use a SPICE model for 90 nm CMOS to plot key electrical relationships of an NMOS transistor.


Using Advanced SPICE models to Characterize an NMOS Transistor

Using Advanced SPICE models to Characterize an NMOS Transistor

SPICE models designed for specific CMOS process nodes can enhance simulations of integrated-circuit transistors. Learn where to find these models and how to use them.


Qorvo Claims ‘Industry’s Highest Gain’ Pre-Driver for 5G Massive MIMO

Qorvo Claims ‘Industry’s Highest Gain’ Pre-Driver for 5G Massive MIMO

The new device helps to ensure linearity and high performance in 5G signal chains.


News Jun 03, 2024 by Jake Hertz
Using Clever Techniques to Convert a Passive Audio Filter Into an Active Filter

Using Clever Techniques to Convert a Passive Audio Filter Into an Active Filter

This project covers two fascinating and useful circuit design techniques—the Burton Transform and Dualling—that allow us to transform a passive network into an active network while building an audio noise filter.


Projects Jun 02, 2024 by John Woodgate