By removing rare earths from the equation, these designs promise cleaner supply chains and more sustainable production.

Abstract: Low-power and high-speed BLDC(Brushless DC) motor is widely used in vacuum cleaners. This paper presents a sensorless speed control scheme for a high-speed BLDC motor of a hand-stick vacuum ...

ST. LOUIS — Copeland announced the launch of the KF variable-speed scroll compressor with EV4 variable frequency drive platform in North America. The KF is Copeland’s variable-speed scroll compressor ...

Variable motorway speed limits have been in place in the United Kingdom on some routes for years now. Despite being controversial in some circles, these have clear benefits for modern motoring, as ...

An example of what variable speed limit signs look like above a highway in Washington. Courtesy of the Washington State Department of Transportation When icy conditions led to a 133-car pileup on ...

If you're traveling by car for the holidays, you might want to keep an extra close eye on your speedometer − because on many roads throughout the country, cameras will be watching how fast you're ...

The pulse settings and variable speed control allow you to customize it to just the right texture you need. And the laser-cut, hardened stainless steel blades are made to last—even if against your ...

The low-voltage variable speed drive (VSD) allows variable control instead of fixed-speed operation. These days, VSDs can reduce energy consumption by up to 30% on average—and as much as 80% in ...

Let’s get one thing straight: the Razer Wolverine V3 Pro isn’t trying to be your cozy couch controller. It’s not here for narrative strolls or casual platformers. This thing is a precision ...

In a deal that surprised some industry observers, chipmaker Qualcomm has agreed to buy Arduino, which is best known for supplying microcontrollers to the DIY community. The acquisition, whose terms ...