Abstract: This paper presents a battery-powered Class-D audio amplifier (CDA). The single-stage topology boosts the output to up to $2 \times$ of the battery voltage using a flying capacitor directly ...

Big tires, small tires, overland rigs, and even a basketball; I tested them all to find inflators I'd actually use myself.

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If you've been considering a video doorbell for your front door, Prime Day deals may have just what you're looking for at a good price. A great deal available now is on the latest Ring Battery ...

GWR’s experimental battery-powered train, which has been undergoing trials in west London for the past couple of years, could soon take the next step – carrying passengers. GWR test train at West ...

Google’s latest lineup of Nest Cam devices has arrived, but there are no new battery models in the 2K refresh. Why? Google has an understandable answer. The new lineup of Nest Cam devices includes a ...

Concrete already builds our world, and now it's one step closer to powering it, too. Made by combining cement, water, ultra-fine carbon black (with nanoscale particles), and electrolytes, ...

It fits the iPhone Air nicely. But the Air is still better off on its own. Credit: Stan Schroeder / Mashable Apple's new iPhone Air is thin and elegant at the expense of camera versatility and battery ...

Google’s products and services have been flooded with AI features over the past couple of years, but smart home has been largely spared until now. The company’s plans to replace Assistant are moving ...