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Editor's Blog

Why I still like electromechanical relays – and you should, too (maybe)

May 24, 2022 By Bill Schweber Leave a Comment

The solid-state relay may be the first choice, but the venerable electromagnetic relay offers attributes the SSR cannot provide and so may be the best solution. Everything is solid-state these days, right? Even that one holdover, the vacuum-tube magnetron at the heart of the home microwave oven, is seeing some early signs of competition from […]

Filed Under: Editor's Blog, FAQ, Featured, Relay Tagged With: FAQ

Talk of EV fires still smolders

September 29, 2021 By Lee Teschler 1 Comment

talk of battery fires still smolders

Leland Teschler • Executive Editor lteschler@wtwhmedia.com On Twitter @ DW_LeeTeschler The latest figures from the National Fire Protection Association show that only about 20% of all vehicle fires arise from problems in the vehicle electrical system—most fires have something to do with the fuel system. Seeing as electric vehicles will do away with problematic petrol, […]

Filed Under: Automotive, batteries, Editor's Blog, Featured, Industry Experts

Say goodbye to cross-country road trips

July 23, 2021 By Lee Teschler 1 Comment

charging

Leland Teschler • Executive editor Officials estimate it will cost $50 billion to field the chargers needed for the expected number of electric vehicles on U.S. roads by 2030. But it’s possible that spending every penny of this amount won’t prevent the extinction of the cross-country road trip. Here’s the logic behind that statement: It’s […]

Filed Under: Automotive, batteries, Editor's Blog, Featured Tagged With: Commentary

Why your local landfill won’t contain lithium batteries

September 30, 2020 By Lee Teschler Leave a Comment

By Ashley Felton - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=1566902

Leland Teschler • Executive editor Consumers with an inclination toward sustainability have been bummed out over recent revelations that most of the plastics they have carefully separated, washed, and placed in recycling bins typically end up in the local dump. So it may come as good news that dead lithium batteries are increasingly likely to […]

Filed Under: Editor's Blog, Featured

How to electrocute yourself in a few easy steps

October 17, 2019 By Lee Teschler Leave a Comment

safety first

Here’s a fun project: Pop open an old microwave oven and scavenge the high-voltage transformer powering the cavity magnetron vacuum tube. Then use it to make yourself a Lichtenberg generator. But be sure there’s someone nearby to call an ambulance. Lichtenberg generators are used to create art and abstract objects by burning fractal patterns into […]

Filed Under: Editor's Blog, Featured, Power Components Tagged With: Commentary

Now or later? No time for time-of-use energy savings

March 1, 2019 By Lee Teschler 1 Comment

Leland Teschler, Executive Editor One of the big justifications for smart home electronics and internet-of-things pipe dreams is a concept called time-of-use electricity billing. Long used for industrial concerns, the plan is to bring TOU billing to households, so they’ll be charged more for electricity they use during periods of peak use, less for juice […]

Filed Under: Editor's Blog, Featured Tagged With: Commentary

All-electric Formula-E racing ramps up

February 14, 2019 By Lee Teschler Leave a Comment

The Formula-E championship is comprised of 13 races that take place in 12 cities across five continents. Season five kicked off in Ad Diriyah, Saudi Arabia, on Sunday, December 16, 2018, and will take its final lap in New York City on Sunday, July 14, 2019. The next race takes place this Saturday, February 16, […]

Filed Under: Editor's Blog, Featured Tagged With: ABB, avx, molex, TTI

Halt and catch fire: The perils of cheap PoE

April 24, 2018 By Lee Teschler 2 Comments

PoE

Dave Jeskey tells an interesting story about what happened when an LED lighting company operated a few of its products in a test chamber. The RJ45 plugs, used for making a connection to a Power over Ethernet cable, melted. The RJ45 plugs came from Sentinel Connector Systems where Jeskey is director of sales and marketing. […]

Filed Under: Editor's Blog, Featured, IoT Tagged With: sentinelconnectorsystems

The down side of free samples

November 15, 2017 By Lee Teschler 1 Comment

free samples

If you’ve had hassles trying to get component samples for a project, you can thank the efforts of a few enterprising students for making your life more complicated. Here’s a microcosm of what has happened with sample parts: The folks at Texas Instruments once had a liberal policy about giving out free samples of the […]

Filed Under: Editor's Blog, Featured Tagged With: texasinstrumentsinc

Gallery: Technical highlights of the Electric & Hybrid Vehicle Technology Expo

September 18, 2017 By Lee Teschler 2 Comments

Electric & Hybrid Vehicle Technology Expo & Conference kicked off this week in Novi, Mich. near Detroit. Billed as a forum for electric, hybrid and plugin hybrid vehicle technology, it showcased technological developments along the supply chain including electrical powertrains and components, battery management systems, materials and equipment. Here are a few of the more […]

Pages: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12

Filed Under: Editor's Blog, Featured Tagged With: aem, inventus, keysight, marquardt, maxwelltechnologies, rohm, samtec, standexelectronics, tektronix, unipower, Unitedchemicon

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A frequency you can count on There are few constants in life, but what few there are might include death, taxes, and a U.S. grid frequency that doesn’t vary by more than ±0.5 Hz. However, the certainty of the grid frequency is coming into question, thanks to the rising percentage of renewable energy sources that…

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