Collaborate Disseminate
Once upon a time, the consensus was that renewable energy was too expensive and in too sparse supply to be a viable power source to run our proud, electrified societies …read more Continue reading South Australia vs. Too Much Home Solar
While ever-improving battery technology draws a lot of the attention when it comes to improving the range of electric vehicles, these machines feature many moving parts that play a role in their overall performance. By reimagining the way power inverte… Continue reading Redesigned power inverter promises range boost for electric vehicles
[Robert Murray-Smith] doesn’t like the price of inverters to convert DC to AC. That led him to build a dynamotor, or what is sometimes called a motor-generator set. These devices …read more Continue reading The Dynamotor Simplified
Those of us who work on the road have a constant dread of being stuck somewhere without power, facing a race between a publication deadline and a fast-failing laptop battery. …read more Continue reading The Vibrating Reed Inverter: Possibly The Simplest Inverter You Can Make
Airplanes and spacecraft have a big problem. The more engine or fuel you have, the more engine and fuel you need. That’s why aircraft use techniques to have lightweight structural members and do everything they can to minimize weight. A lighter craft can go further and carry more payload or …read more
Continue reading 3D Printed Electric Motor Wants to Take Flight
At one time or another, most of us have seen a gadget for sale and thought we could build something similar for cheaper. Of course, we’re almost always wrong. Not about being able to build it, mind you. But when you add up the cost of the materials, the tool …read more
Inverters that convert DC into AC are pretty commonplace, some cars even have standard AC receptacles in them for you to plug in your favorite appliance. However, there’s a particular type of inverter called a grid tie inverter that allows you not only to make AC, but also inject it …read more
If you move in certain shady circles, you may have noticed the crop of improbably cheap “pocket welders” popping up on the market these days. They’re all variations on a theme, most with wildly optimistic specs minimal accessories of the lowest possible quality. But their tiny size and matching price …read more
Continue reading Improbably Cheap Pocket Welder Gets an ESP32 Makeover
There was a time when high voltage in electronic devices was commonplace, and projects driving some form of vacuum or ionisation tube simply had to make use of a mains transformer from a handy tube radio or similar. In 2019 we don’t often have the need for more than a …read more
Why would anyone put as much effort into resurrecting a 1970s split-flap clock as [mitxela] did when he built this custom PLL frequency converter? We’re not sure, but we do like the results.
The clock is a recreation of the prop from the classic 1993 film, Groundhog Day, rigged …read more
Continue reading Split Flap Clock Keeps Time Thanks to Custom Frequency Converter