Collaborate Disseminate
Laptop computers may be ubiquitous today, but there was a time when they were the exclusive preserve of rich businesspeople. Back in the early ’90s, the significant added cost of …read more Continue reading Hackaday Prize 2022: Repairing a Vintage Laptop With Modern Components
Recently I needed a dual voltage power supply to test a newly-arrived PCB, but my usual beast of a lab power supply was temporarily at a client’s site. I had …read more Continue reading Dual Power Supply in a Pinch
I have an Acer monitor that I’ve owned for around 15 years, and thanks to my having paid extra at the time for the model sporting a DVI socket for …read more Continue reading Junk I Bought: My PSU Just Won’t Do
At their best, laptops are a compromise design. Manufacturers go to great lengths to make the slimmest, lightest, whatever-est laptops possible, and the engineering that goes into doing so is …read more Continue reading Laptop USB-C Charging Hack Lets You Leave the Brick at Home
When reaching for a power supply design it’s normal here in 2022 to reach for a switching design. They’re lightweight, very efficient, and often available off-the-shelf at reasonable prices. Their …read more Continue reading A Simple Linear Power Supply, Done Well
These cheap Chinese-built programmable power supplies are nothing new, we’ve been using them for years. They’re not particularly good power supplies, since current feedback is in software, but for some …read more Continue reading Another DPS5005 Alternative Firmware
Finding that his recently purchased LED Christmas lights defaulted to an annoying blinking pattern that took a ridiculous seven button presses to disable each time they were powered up, [Matthew …read more Continue reading Custom Christmas Light Controller Blocks Blinks
There comes a time in every hardware hacker’s career during which they first realize they need a negative voltage rail in their project. There also comes a time, usually ~10ms …read more Continue reading Quick and (Not Very) Dirty Negative Voltage Supply
Once upon a time, building yourself a power supply required sourcing all manner of components, from transformers to transistors, knobs, and indicators. These days, everything’s a bit more integrated which …read more Continue reading It’s Super Easy To Build Yourself a USB-C Variable Power Supply These Days
Good news this morning from low Earth orbit, where the Hubble Space Telescope is back online after a long and worrisome month of inactivity following a glitch with the observatory’s …read more Continue reading The Fix is In: Hubble’s Troubles Appear Over for Now