Simple bench power supply

thingiverse

I have assembled a mini workstation with essential electronics tools, including a soldering iron, helping hands, a small multimeter, and a power supply for tackling various projects. I opt to use a DC-DC stepdown converter, also known as a "buck" converter, which requires 24V input to set the output between 1 and 24V DC. This particular project utilizes an LM2596 Step Up/Down DC-DC Converter Power Module With Digital Display, offering a convenient pushbutton to monitor either the input or output voltage in real-time. I created a custom button to access this function without opening the case, ensuring easy operation. The indicator LEDs for input and output are repositioned to the front of the enclosure using thin 1.75mm clear filament, effectively channeling the emitted light to provide a clean display. Notably, the built-in micro potentiometer should be swapped with a standard 10K ohm potentiometer for smoother operation. Additionally, I maintained access to screw connectors on both input and output sides for enhanced flexibility and versatility. Finally, users can choose between 4mm banana plugs or a series of DuPont female jumper wire connectors to interface with the output voltage reading on the front panel.