Portable Power Supply

August 19, 2017

I have a few excellent external batteries, the kind with USB female connectors used to charge phones. Now I needed a high voltage 12V battery, or more specifically something in the 6V-28V interval to power a uRADMonitor A3 unit. The form factor was important too, as I needed something more compact, a portable power supply with DC output. With a 3D Printer and a CNC Router at hand, a quasi-professional…


Digital bench power supply

April 8, 2015

As a follow up to one of my earlier projects, the Variable regulated power supply, initially designed to deliver 0..30Volts at up to 10Amps, I have decided it was time for an upgrade. I kept the enclosure and the nice 250W toroidal transformer, and am reshaping everything as a new digital power supply with regulated voltage and current, short circuit protection, lcd display, buzzer for various alarms, temperature sensor on…