I’ve been looking for a nice, small, all-in-one power supply that can be powered using USB Power Delivery, and this portable DC power supply looks like a great fit for what I was imagining! It uses actual binding posts for power output, and has real knobs for adjusting power supply parameters. It has short-circuit protection and can provide up to 60W when powered from a suitable USB-C PD charger.
For something that is portable and simple to use, it doesn’t need to have the same accuracy as my Fluke benchtop power supply! It just needs to have basic 1% accuracy at least, and be good enough for quick hacks on the go or for a mobile lab bag. Most phone chargers nowadays are USB-C Power Delivery enabled, and can output at least 15V if not 20V. So being able to use something you already have on hand is a bonus!
The second USB-C port allows UART connection to the CH552 microcontroller inside. This allows you to do some basic data collection, which is a nice touch, but it also allows you to reprogram the firmware. If you want, you can spend some time carefully calibrating the supply by changing the constants in the firmware to adjust your individual unit. This option, plus the general ease of use, means it will almost certainly find use in your lab!
