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Introduction to Modulation Techniques in RF Systems

Introduction to Modulation Techniques in RF Systems

In this article, we discuss the basics of RF modulation and how it affects the performance of communication systems.


Introduction to SLiCAP for Analog Circuit Design

Introduction to SLiCAP for Analog Circuit Design

Learn how to design and verify analog circuits using SLiCAP, a Python-based symbolic simulator program.


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.


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.


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
Common-Mode Noise in Differential Transmissions: Characteristics and Causes

Common-Mode Noise in Differential Transmissions: Characteristics and Causes

High-speed data transmission interfaces such as USB, HDMI, and Ethernet use differential signaling due to its superior noise immunity. Even so, some noise still appears. To remove it, we need to understand where it comes from and why.


Op Amp Slew Rate and Rise Time Explained

Op Amp Slew Rate and Rise Time Explained

To avoid distortion and slow transitions in an operational amplifier's output signal, it's important to understand slew rate. In this article, we examine its causes and effects.


Understanding Output Signal Swing in Op Amps

Understanding Output Signal Swing in Op Amps

Learn about the characteristics and limitations of an operational amplifier’s output voltage range.


Frequency Response of the MOSFET Common-Source Amplifier

Frequency Response of the MOSFET Common-Source Amplifier

In this article, we learn about the frequency response of the MOSFET common-source amplifier by examining its s-domain transfer function.


Introduction to the MOSFET Common-Source Amplifier

Introduction to the MOSFET Common-Source Amplifier

In this article, we cover the basic behavior of the MOSFET common-source amplifier with different types of load.


Understanding the Significance of Dynamic Range and Spurious-Free Dynamic Range

Understanding the Significance of Dynamic Range and Spurious-Free Dynamic Range

In this article, we investigate two metrics used to characterize the performance of RF test and measurement systems.


Balun Basics and Practical Performance Parameters

Balun Basics and Practical Performance Parameters

Learn about the balun, a special type of transformer used in mixers, amplifiers, and signaling.


Introduction to the Directional Coupler for RF Applications

Introduction to the Directional Coupler for RF Applications

As part of a vector network analyzer (VNA), a directional coupler enables us to characterize a device’s performance by its S-parameters. Read this article to learn more about this important piece of equipment.