Batteries & Other Energy Storage Devices

Current

Jason Lomberg, North American Editor, PSD

Welcome to the August issue! And a most insincere salutations to this endless heatwave which may or may not be connected to global warming but is definitely unwanted, unwelcome, and unbearable! As I write this, we’re less than a month into summer, and I’m already begging for fall! In any case, we’ve got a

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Date:

08/01/2025

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Figure 1: Sine Amplitude Converter (SAC) power modules, like the BCM6135, can be used in place of regulated DC-DC converters to reduce size and for higher efficiency. BCM6135 bench measurement efficiency at 25°C shows a peak efficiency around 97.5% at half load

8 EV Challenges of Converting High Voltage to SELV

Patrick Kowalyk, Automotive Principal Field Applications Engineer, Vicor Corporation

The shift to 800V electric vehicle (EV) battery architectures is inspired by the need to increase charging rates, reduce resistive losses (I2R), and improve drivetrain efficiency. In parallel, zonal electrical architectures are emerging, using 48V local buses to reduce harness weight. Converting 800V high-voltage (H

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Date:

08/01/2025

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Figure 1: The test procedure undertaken by the white paper

Why Accurate Cell Data Matters in Battery SoC and SoH Determination

Gavin McVeigh – Senior Director System Architecture at Dukosi

As SoC and SoH cannot be directly measured, various methods of computational complexity are used to determine their values. The accuracy of quantifiable metrics—temperature, voltage, and current—and the synchronization of data captured for all cells are critical inputs for the algorithms used to determine ov

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Date:

08/01/2025

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Figure 1: BBU shelf configuration in an OCP ORV3 architecture

Smart Battery Backup for Uninterrupted Energy

Christian Cruz, and Marvin Neil Cabuenas, Analog Devices

Backup battery shelves play a key role by serving as the foundation of these systems, acting as the basis hub for the efficient storage of battery backup units (BBU) and creating a link that increases the readiness of critical power reserves. Their primary goal is to accommodate and manage up to six BBU mo

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Date:

08/01/2025

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Figure 1: EV parked outside residential home

The Daily Use of EV Chargers: Human Interface Technology

Wayne Liang, senior segment manager of Microchip Technology’s E-Mobility business

Automotive manufacturers are increasingly offering a wider selection of EVs to their fleet, which requires a larger quantity of easy-to-use chargers for customers. There are several types of chargers that are currently in use including Level 1, Level 2 and DC fast chargers depending upon their size and capacit

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Date:

08/01/2025

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Figure 1: OBC Block Diagram

The Challenges of On-Board Charging

Milan Marjanovic, Microchip and Isaac Aboelsaad, Würth Elektronik eiSos

With its exceptional efficiency and capacity for bi-directional power transfer, the Totem-Pole topology offers a solution for integrating Power Factor Correction (PFC) and inverter functionality effectively. DC-DC topologies like the Dual Active Bridge (DAB) are well suited for battery chargers because of th

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Date:

08/01/2025

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Figure 1: An advanced battery measurement solution with software that creates a dynamic discharge current data collection

Outdated Battery Measurements Can Impact Vehicle Performance

Andrew Herrera, Keysight Technologies

In recent years, low-power e-mobility vehicles have become extremely popular as sustainable and efficient modes of transportation. Electric bicycles and scooters offer numerous benefits, including reduced carbon emissions and lower operating costs. However, to fully maximize their potential, it is crucial to

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Date:

08/01/2025

Kevin Parmenter, Director, Applications Engineering. TSC, America

The Road to EV Ubiquity

Kevin Parmenter, Director, Applications Engineering. TSC, America

The electric vehicle (EV) landscape reflects both exciting advances and persistent hurdles. While EV and hybrid adoption accelerates, a persistent lag in infrastructure, policy, and grid limitations creates uncertainty. Beneath the confident predictions of growth by financial analysts lies a murkier reality. In

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Date:

08/01/2025