Portable DC Power Supply with Adjustable Voltage
thingiverse
I'm going to build a DIY Portable DC Power Supply with Adjustable Voltage (3-28V). The idea is to have something I can use on the go or when my bench supply is tied up. To make this portable power supply, follow these instructions: https://www.youtube.com/watch?v=tS9OZw_sj4k Key specs for the DIY Portable DC Power Supply include: Minimum voltage: The battery's minimum voltage (3.0 - 4.2V) Maximum voltage: Up to 28 volts Maximum current: Two amps Capacity: Approximately 4800 milliampere-hours (mAh), depending on the condition of the batteries Bill of Materials: * Two 18650 batteries wired in parallel * One TP4056 Li-Po charger with protection https://goo.gl/cx8V4Y * One MT3608 Boost Converter https://goo.gl/a4xhgh * One mini LED voltmeter https://goo.gl/KXRaKv * One switch * Two alligator clips
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