Lab variable power supply
thingiverse
I had an old 5V/10A switching power supply collecting dust in my lab, so I decided to put it to use. This versatile variable power supply is built around a variable step-up/step-down DC-DC converter, the 5V power supply itself, two 10K potentiometers for adjusting voltage and current respectively, a 5V USB port straight from the output and a low-cost Chinese voltmeter/ammeter combo.
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