This Week in PowerBites: Megawatt MEMS, Battery Breakthroughs, Grid Greening

This issue of PowerBites includes a look at the future of electric aviation, news about the continued growth of fossil-free generation capacity in the U.S. grid, and several advances in battery technology, along with a sampling of innovative power components.

Welcome to our summer edition of PowerBites, which covers hot topics such as the future of electric aviation, the continued growth of fossil-free generation capacity in the U.S. grid, and advances in battery technology.

And please stop by our ProductBites section, where we serve up a heaping helping of innovative power products. This month, our smorgasbord highlights battery management, motor control, and components to support emerging 48-V automotive applications.  

Technology Features

Electra Aero
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The concept aircraft pairs a double-bubble lifting fuselage and electric tail fans to explore competitive gains for electrified aircraft with 100+ passengers.
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Wind, water, solar, and grid-scale battery storage enabled California’s power grid to spend 99 of the past 100 days running completely fossil-free for an average of 5.4 hours ...
U.S. Navy
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Successful U.S. Navy field trials of Menlo’s MEMS-based 1,000-V, 125-A smart circuit-breaker modules validate how they can improve reliability and efficiency while saving space...
0and1s_dreamstime_152088993 and Enphase
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Enphase’s new SST architecture, which aligns with NVIDIA’s 800-V DC roadmap, uses a meshed array of sub-1-kV bidirectional GaN switches to provide scalability and distributed ...
MIT News
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A research team from MIT demonstrated a low-temperature process that could unlock cleaner lithium from America’s abundant hard rock while minimizing waste.
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Research from Tokyo University of Science shows how rheo-impedance spectroscopy links slurry shear conditions during coating to battery performance, enabling data-driven optimization...

ProductBites

Spotlighted products for this issue address battery management, motor control, components to support emerging 48-V automotive applications, and more.  

Power Devices

High-voltage SIC and GaN devices share headlines this month.

Microchip Technology
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New 3.3-kV mSiC modules from Microchip are meant to help accelerate the adoption of solid-state transformers in AI hyperscale data centers and other high-voltage power applications...
STMicroelectronics
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STMicroelectronics’ new GaN-based power semiconductors are designed to improve efficiency and increase power density in applications such as AI, robotics, industrial power supplies...

Power Conversion

Power factor correction without tears and novel GaN-based bidirectional switches

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STMicroelectronics’ multiplier-less PFC controller targets high-end battery chargers, power adapters, and power supplies for flat-panel televisions and lighting drivers.
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Equipped with bidirectional voltage and current blocking capabilities, the bidirectional switches from Infineon significantly shrink PCB footprint and cut component count.

Power Management

A pair of smart PMICs for CPUs.

Alpha and Omega Semiconductor
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Alpha and Omega’s new digital multiphase controllers and smart power stages deliver industry-leading low quiescent power, extending mobile battery life by up to an hour.
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Microchip Technology's latest integrated PMIC is optimized for general-purpose MPUs requiring dynamic voltage scaling.

Battery Management

Products to keep your batteries cool, calm, and balanced under even the most challenging conditions.

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The ASIL-D-compliant battery-management IC from STMicroelectronics is intended for lithium battery packs in hybrid- and full-electric vehicles.
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Nova Semi’s advanced BMS device combines with Microchip’s suite of automotive-grade controllers and software tools to create a high-accuracy, pre-validated battery-management ...

Automotive Power

The latest harvest of automotive-grade components includes several products that support emerging 48-V aux power applications. 

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STMicroelectronics’ eight-channel, 48-V pre-driver offers independent high-side/low-side outputs with advanced diagnostics and EMC control.
ID 18612449 © Hlphoto | Dreamstime.com and New Eagle
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The NX3 single-controller solution for EVs combines Megawatt Charging System and Combined Charging System protocols with full vehicle supervisory control.
Texas Instruments
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TI’s new GaN synchronous step-down converter targets 12- and 48-V automotive applications such as audio/infotainment systems, cabin climate control, and headlights.
Bourns
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The AEC‑Q200‑compliant chip ferrite beads from Bourns handle up to 5 A in high‑density PCB assemblies.

Power in Motion

A versatile driver/sensor/motor control IC supports 24 channels, an improved BLDC motor gate driver, a modular stepper controller card supports microstepping, a GaN drive for robotics, and a controller that cuts power-line harmonics in industrial motors.

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Microchip’s LX4580 mixed-signal processing platform combines motor control with synchronized data acquisition and fault monitoring in a redundant architecture tailored for mission...
MIKROE
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MIKROE’s new snap-in board controls bipolar stepper motors with ultra-smooth motion and extremely low-noise operation.
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New members of STMicro's gate-driver IC family bring high energy efficiency to battery-operated equipment.
Efficient Power Conversion
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The 23-mm GaN inverter reference design from EPC delivers 11-A RMS continuous current at 48 V and 100-kHz PWM.
ID 109457259 © Nostal6ie | Dreamstime.com
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Infinitum’s advanced motor system improves power quality by reducing harmonics at the source, helping customers unlock additional electrical capacity while lowering energy use...

The Power Tool Chest

A rotating library of power design, simulation, and analysis tools.

Frenetic
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Frenetic’s updated magnetics design and simulation tools enable designers to quickly explore and validate designs with an average of ~94% accuracy.

More PowerBites

Tony Vitolo/EndeavorB2B
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This edition of PowerBites explores a cavalcade of power innovations from the recent APEC event, looks at how California is taking the lead in making bidirectional EV charging...
Lee Goldberg © Endeavor Business Media
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Check out the latest from power technology expert Lee Goldberg.

About the Author

Lee Goldberg

Contributing Editor

Lee is the author of the popular PowerBites series

Lee Goldberg is a self-identified “Recovering Engineer,” Maker/Hacker, Green-Tech Maven, Aviator, Gadfly, and Geek Dad. He spent the first 18 years of his career helping design microprocessors, embedded systems, renewable energy applications, and the occasional interplanetary spacecraft. After trading his ‘scope and soldering iron for a keyboard and a second career as a tech journalist, he’s spent the next two decades at several print and online engineering publications.

Lee’s current focus is power electronics, especially the technologies involved with energy efficiency, energy management, and renewable energy. This dovetails with his coverage of sustainable technologies and various environmental and social issues within the engineering community that he began in 1996. Lee also covers 3D printers, open-source hardware, and other Maker/Hacker technologies.

Lee holds a BSEE in Electrical Engineering from Thomas Edison College, and participated in a colloquium on technology, society, and the environment at Goddard College’s Institute for Social Ecology. His book, “Green Electronics/Green Bottom Line - A Commonsense Guide To Environmentally Responsible Engineering and Management,” was published by Newnes Press.

Lee, his wife Catherine, and his daughter Anwyn currently reside in the outskirts of Princeton N.J., where they masquerade as a typical suburban family. 

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