Latest Technical Articles

Also known as the source follower, the common-drain amplifier is notable for its low output impedance. This article…

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.

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

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

In this project, we mix the old and the new by integrating present-day BLE technology with a vintage Science Fair computer kit.

In this project, we mix the old and the new by integrating present-day BLE technology with a vintage Science Fair computer kit.

Core saturation is one of the main limitations on the design of magnetic components. In this article, we explore how…

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.

In this article, we learn about core saturation and why it should be avoided in most applications. We then examine how…

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.

This article demonstrates the operation of an LTspice shift register and discusses details of its schematic and timing…

This article demonstrates the operation of an LTspice shift register and discusses details of its schematic and timing relationships.

Eddy currents are a major loss mechanism in transformer cores. This article provides both in-depth and simplified…

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.

We explore the design and functionality of a digital shift register intended for use in mixed-signal circuit simulations.

We explore the design and functionality of a digital shift register intended for use in mixed-signal circuit simulations.

The hysteresis effect is one of the main sources of loss in ferromagnetic materials. In this article, we learn to…

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.

In this article, we use the concept of magnetic field energy to explore the relationship between a core's hysteresis loss…

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.

Customizing the device parameters of LTspice's logic gates and flip-flops can help you more accurately simulate these…

Customizing the device parameters of LTspice's logic gates and flip-flops can help you more accurately simulate these components. This article walks through the specification process and provides some helpful tips.

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

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

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

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

The formation of eddy currents can cause problems for magnetic cores at high frequencies. To mitigate these undesirable…

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.

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

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

SPICE models designed for specific CMOS process nodes can enhance simulations of integrated-circuit transistors. Learn…

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.

This project covers two fascinating and useful circuit design techniques—the Burton Transform and Dualling—that allow…

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.

In this article, we use the concept of magnetic field intensity to help explain how complex permeability models the…

In this article, we use the concept of magnetic field intensity to help explain how complex permeability models the losses of a magnetic core.

Current briefly flows through both transistors during logic-level transitions. This article explores the resulting power…

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.