Energy Harvesting for Electronics

By Dr Obnxs | Feb 4, 2010

I recently highlighted a novel audio amp that can run off batteries for a long, long time. And I’ve been collecting some other low power stuff that I’ll share here. But what really makes it complete is the concept of Energy Harvesting! Continue Reading >>

Hyper Efficient Audio – 100 W from a single battery!

By Dr Obnxs | Dec 14, 2009

It’s amazing what application specific integrated circuits can do now. I never stop being surprised at what I keep seeing coming out of the pipeline. Audium Semiconductor recently gave me one such surprise with the hyper efficient AS1001 amplifier that can deliver 100 watts peak power, from a 1.5 volt (read single battery) power supply. Continue Reading >>

Driving the Nissan Leaf

By Dr Obnxs | Dec 6, 2009

The Nissan Leaf is an all electric car for the masses. On paper, the car seems to be a much more realistic proposition than cars like the Tesla or the Fisker. It’s a small 5 seat car, with a range of 100 miles and a target price somewhere a bit above $25k. For many, this is a price point that is manageable, even in these tough times. Continue Reading >>

How do you keep bits secure?

By Dr Obnxs | Nov 5, 2009

Let’s say you have a 256 bit encryption key in some piece of hardware. How do you keep it secure? Turns out, it’s very, very hard. Especially when the actual device can be in the hands of those that want to crack it. Continue Reading >>

Automotive Gas Turbines – Then & Now

By Dr Obnxs | Oct 24, 2009

I was reading about a new serial hybrid that uses a micro-turbine, and that got me looking at automotive turbines of the past. We’ve come a long way, baby! Continue Reading >>

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