Technical Features

September 2023

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Figure 1: Some battery chemistries compared

An Integrated Solution to Li-ion Battery Management

John Carpenter, Product Development Manager, Qorvo

This article discusses the issue and describes cost-effective integrated solutions that can also add extra user benefits, including state-of-charge and state-of-health monitoring. Going back in history, perhaps hundreds of chemistries have been proposed for batteries. These have ranged from the original copper,

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Date:

11/30/2023

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Table 1. Losses sources, types and influences

AC Losses in Magnetic Components

George Slama, Würth Elektronik eiSos

In power supplies, storage inductors play an important role. Unexpected overheating of the magneticcomponent in the inductors used should be avoided at all costs. The AC losses that are often responsible for this are difficult to estimate. The online simulation tool RedExpert facilitates the development work consi

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Date:

09/29/2023

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Figure 1. 1,100 mAh alkaline cell, 0.9V cutoff voltage - discharge capacity variation

Enhance IoT Battery Performance Using Emulation Software

Brian Whitaker, Product Marketing Engineer, Keysight Technologies

For consumer electronic devices, battery life is often a critical purchase consideration. Therefore, the fact the calculated battery life of IoT devices is often inaccurate is a significant issue for manufacturers. One method to measure battery life is to divide the battery capacity in amp-hours by the av

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Date:

09/01/2023

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Figure 1: Megger EVCC300 Electric Vehicle Charger Checker

Importance of On-site EV Charger Testing

Dr. Ahmed El-Rasheed, Industry Director – Renewables, Megger

The adoption of electric vehicles is a megatrend globally and especially in the USA. Massive federal, state, and private investments are driving an exponential increase in the network of chargers across the U.S. This is causing a significant impact on the existing electrical grid and a greater demand on electricity ge

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Date:

09/01/2023

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Figure 1: Topology of an LCL-type grid-connected voltage source converter

Direct Current (DC) Injection from Renewable Energies - When Accuracy Matters in Power Quality Measurements

Roland Buerger, DANISENSE A/S

In recent years, power quality measurements have been carried out more and more frequently in the electric power and energy industry and on distribution and transport grids. These measurements focus primarily on the classic characteristic parameters such as voltage dips, voltage transients and harmonics. Ma

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Date:

09/01/2023

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Figure 1. A bidirectional power supply able to sink and source power. The red line indicates maximum power (30kW) can be sinked at any voltage sweeping from 2000 to 750 V, a feature called autoranging.

Choosing the Perfect Electronic Load

Steven Soria, Application Engineer, EA Elektro-Automatik

Like a programmable power supply in reverse, an electronic load simulates load conditions and measures power consumption. As end-users demand increasingly efficient devices and longer battery run times, designers increasingly depend on electronic loads. According to MarketsAndMarkets, sales of electr

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Date:

09/01/2023

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Figure 1: The power, switching frequency, and application use cases of different semiconductor materials (source onsemi)

Accelerating High Power Energy Infrastructure Design

Mark Patrick, Mouser Electronics

Power conversion is an essential function in almost every design, from low-power Internet of Things (IoT) sensors to high-power solar inverters. Trends such as using renewable energy sources and the growth of electric vehicle adoption demand efficient and reliable energy conversion. This article highlights so

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Date:

09/01/2023

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Figure 1: Simplified diagram of double pulse testing circuit

A Better Choice for High−Speed Switching Applications

Fatih Cetindag, Applications Engineer, Automotive Power Division, onsemi

Silicon Carbide (SiC) has higher dielectric breakdown strength, energy bandgap, and thermal conductivity than silicon (Si), properties that power electronics designers can exploit to develop more efficient power converters with greater power density than designs based on Si IGBT devices. For these applications, mi

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Date:

09/01/2023

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Figure 1: The key functions of the BMS explained

Getting The Most Out of EV Batteries

Dr. Andreas Both, Antonio Leone, Curt Hillier from NXP and Brian Glassman, Lanie Meyers from Electra Vehicles

Drivers, carmakers, and the supply chain share several ambitions for electric vehicles (EVs) – improving range and battery safety while increasing the battery’s lifespan and reducing maintenance costs. Each of these goals can be achieved with new technology enhancements, secure and reliable connectivity, an

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Date:

09/01/2023

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Figure 1: Comparing silicon (Si), silicon carbide (SiC), gallium nitride (GaN), silicon superjunction (Si SJ), and insulated gate bipolar transistor (IGBT)/gate turn-off (GTO) thyristor devices over power and frequency. (Source: Author)

Choosing SiC or GaN over Si Comes with Many Considerations

Brian Santo, Mouser Electronics

As silicon power IC (Si) technology begins to run into limitations, engineers are seeking out alternatives to help them build smaller, lighter, and more efficient products. Wide bandgap (WBG) materials such as gallium nitride (GaN) silicon carbide (SiC) are both viable options, so it isn’t always clear which of

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Date:

09/01/2023

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Figure 1. Profitability + Sustainability Drive $6 Billion GaN Growth

GaN Power Semiconductors Redefine a Growing Number of Market Landscapes

Paul Wiener, VP Strategic Marketing, GaN Systems

GaN power semiconductors continue to bring significant advancements in power-reliant industries, substantially impacting the global economy. Markets such as consumer electronics, automotive, and data centers are experiencing massive transformations as GaN power transistors replace traditional silicon in power sy

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Date:

09/01/2023