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Motor Starters Part 10: Autotransformers

Motor Starters Part 10: Autotransformers

Motor starters like autotransformers can solve induction motor challenges. Here’s all you need to know about the workings, connections, and…


National Electrical Code 2023 Basics: Grounding and Bonding Part 7

National Electrical Code 2023 Basics: Grounding and Bonding Part 7

Learn about the rules regarding multiple separately derived systems, bonding to metallic parts, ungrounded systems, and outdoor sources.


Interference-free Power Supply

Interference-free Power Supply

Modern industrial plants place high demands on the reliability and interference immunity of power supplies. Typically, the plant components are…


TMR vs. Shunt Sensors

TMR vs. Shunt Sensors

There was a time when shunt solutions were considered the safe choice in sensor technology. Let's take a look at how things have changed.


Magnetics Applications for Solar Power Conversion

Magnetics Applications for Solar Power Conversion

Solar energy has been widely deployed to realize carbon-neutralizing benefits. Along with the demand for efficiency of power conversion systems,…


Practical Guidelines for Litz Wire Selection and AC Copper Losses Estimation Part 2

Practical Guidelines for Litz Wire Selection and AC Copper Losses Estimation Part 2

The second in a two-part series, this article focuses on Litz wire conductors, well-known and massively used in magnetic components dedicated to…


Magnetized Simulation of Customized Permanent Magnetic Objects

Magnetized Simulation of Customized Permanent Magnetic Objects

This article discusses the magnetization of a virgin magnetic material into a permanent magnet in magnetic solver AMPERES.


Practical Guidelines for Litz Wire Selection and AC Copper Losses Estimation Part 1

Practical Guidelines for Litz Wire Selection and AC Copper Losses Estimation Part 1

Applied to Resonant Power Magnetics used in Automotive Converters.


Beyond MLCCs: The Rise of the Silicon Capacitor

Beyond MLCCs: The Rise of the Silicon Capacitor

Passive components remain a crucial element in power hungry and data-intensive applications. And, as the end of the Moore’s Law journey for…


DAB Calculations for 3kW Battery Charger App & Magnetics Design

DAB Calculations for 3kW Battery Charger App & Magnetics Design

The dual active bridge topology is currently raising a lot of interest from the power electronics community. Its bidirectional nature, soft…


Power Factor Correction: Reactive Power Compensation Methods

Power Factor Correction: Reactive Power Compensation Methods

This article introduces power factor correction, why it is needed, and how to design it for the system.


Motor Starters Part 4: Selecting and Sizing Star-Delta Parts

Motor Starters Part 4: Selecting and Sizing Star-Delta Parts

This article makes the selection and sizing of the star-delta motor starter parts very easy. Here you will learn how to select and size the fuse,…


Three-Phase Induction Motor Operation Explained

Three-Phase Induction Motor Operation Explained

This article describes the operating principles and equivalent circuits of a three-phase induction motor.


Motor Starters Part 2: Selecting and Sizing DOL Parts

Motor Starters Part 2: Selecting and Sizing DOL Parts

This article instructs readers on how to size and select Direct On-Line motor starter parts like circuit breakers, contactors, and thermal overload…


Intro to Magnetic Fields Around a Conductor and a Coil

Intro to Magnetic Fields Around a Conductor and a Coil

In this article, learn about the magnetic fields that occur around current-carrying conductors and various shaped coils and how to relate the…


Introduction to Energy Meter Calibration

Introduction to Energy Meter Calibration

This article will guide engineers and technicians through procedures, precautions, and the importance of carrying out electrical energy meter…


Understanding Attenuation in Signal Transmission

Understanding Attenuation in Signal Transmission

Attenuation is the loss of signal strength of an electrical or networking system while in transmission. In this article, you will learn how to…


Introduction to Inductor Filter Types and Applications

Introduction to Inductor Filter Types and Applications

A frequency filter is a circuit that passes certain frequencies and reduces signal levels at other frequencies. Learn about various types of…


The Evolution of Integrated Current Sensors Takes a Digital Path

The Evolution of Integrated Current Sensors Takes a Digital Path

So far, the evolution of integrated current sensors (ICSs) has been slow and gradual. Current measurement technology has been developed…


Technical Articles Oct 04, 2022 by LEM
What Are Magnetically Coupled Inductors?

What Are Magnetically Coupled Inductors?

This article discusses magnetically coupled inductors, more commonly known as transformers.