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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 Class C Power Amplifier

Introduction to the Class C Power Amplifier

This article examines the operation of the Class C power amplifier and how it compares to its Class A and Class B counterparts.


Understanding Inductors With Gapped Cores

Understanding Inductors With Gapped Cores

In this article, we explore the advantages of introducing an air gap to the magnetic core of an inductor.


Controlling and Preventing Core Saturation in Inductors

Controlling and Preventing Core Saturation in Inductors

Core saturation is one of the main limitations on the design of magnetic components. In this article, we explore how different factors—particularly the number of turns—impact the core saturation of an inductor.


Using Permeability to Understand Magnetic Core Saturation

Using Permeability to Understand Magnetic Core Saturation

In this article, we learn about core saturation and why it should be avoided in most applications. We then examine how different ways of defining permeability can help us predict the saturation flux density of a magnetic core.


Understanding How Laminated Cores Reduce Eddy Current Loss

Understanding How Laminated Cores Reduce Eddy Current Loss

Eddy currents are a major loss mechanism in transformer cores. This article provides both in-depth and simplified explanations of how core laminations work to mitigate the effects of eddy currents.


Hysteresis Loss: Estimation, Modeling, and the Steinmetz Equation

Hysteresis Loss: Estimation, Modeling, and the Steinmetz Equation

The hysteresis effect is one of the main sources of loss in ferromagnetic materials. In this article, we learn to calculate the hysteresis loss of a magnetic core and work through some example problems.


Understanding Magnetic Field Energy and Hysteresis Loss in Magnetic Cores

Understanding Magnetic Field Energy and Hysteresis Loss in Magnetic Cores

In this article, we use the concept of magnetic field energy to explore the relationship between a core's hysteresis loss and its B-H curve.


Understanding Dimensional Resonance in High-Frequency Magnetic Cores

Understanding Dimensional Resonance in High-Frequency Magnetic Cores

In this article, we explore the effect of dimensional resonance on the magnetic field distribution in high-frequency ferrite cores.


An Introduction to Using Logic Gates in LTspice

An Introduction to Using Logic Gates in LTspice

This article explains how to successfully integrate logic gates into an LTspice simulation.


Understanding the Effect of Eddy Currents on the High-Frequency Behavior of Magnetic Cores

Understanding the Effect of Eddy Currents on the High-Frequency Behavior of Magnetic Cores

The formation of eddy currents can cause problems for magnetic cores at high frequencies. To mitigate these undesirable effects, we first need to understand them.


Simulating the Short-Circuit Power Dissipation of a CMOS Inverter

Simulating the Short-Circuit Power Dissipation of a CMOS Inverter

Current briefly flows through both transistors during logic-level transitions. This article explores the resulting power dissipation and provides some helpful LTspice tips for measuring current and power.


Diamagnetic, Paramagnetic, and Ferromagnetic Materials Explained

Diamagnetic, Paramagnetic, and Ferromagnetic Materials Explained

This article examines three different types of magnetic materials and how they react to an external magnetic field.


Simulating the Switching Power Dissipation of a CMOS Inverter

Simulating the Switching Power Dissipation of a CMOS Inverter

When a CMOS inverter switches logic states, power is consumed due to its charging and discharging currents. Learn how to simulate these currents in LTspice.


Power Dissipation of a CMOS Inverter

Power Dissipation of a CMOS Inverter

This article explains dynamic and static power consumption in a CMOS inverter circuit.


Key Concepts of Magnetic Materials

Key Concepts of Magnetic Materials

This article discusses the following basic concepts related to magnetic materials: the magnetic dipole moment, magnetization vectors, susceptibility, and permeability.


An Explanation of Undervoltage Lockout

An Explanation of Undervoltage Lockout

Learn how undervoltage lockout (UVLO) can protect semiconductor devices and electronic systems from potentially hazardous operation.


Common-Mode Chokes: From Working Principles to Important Performance Parameters

Common-Mode Chokes: From Working Principles to Important Performance Parameters

Learn how these simple filters can help you combat common-mode noise with minimal degradation of the desired signal.


Switching Losses in Bipolar Junction Transistors

Switching Losses in Bipolar Junction Transistors

With the help of SPICE simulations, we examine two types of power dissipation that occur when BJTs are used as switches.


Introduction to MOSFET Switching Losses

Introduction to MOSFET Switching Losses

This article will help you optimize your switch-mode regulator and driver circuits by explaining important sources of MOSFET power dissipation.