DIY Lab Power Supply with USB

prusaprinters

This project is very simple and also inexpensive (under 40 EUR)!You only need a few components, which you can find under the following links on Amazon (no advertising). Parts:The adjustable voltage converter is the centerpiece, with it you can adjust your voltage as you wish. Pay attention to the choice of your power supply, as it will affect what your maximum output voltage is. I have used a 24V 5A power supply and can therefore have an output voltage of up to almost 24V and 5A. The module can withstand 36V so you can also supply it with a 36V power supply.The 5V 5A voltage converter provides a constant voltage of 5V and also has a USB port, which can also be used to charge a cell phone. This part is not absolutely necessary, but I think it makes a lot of sense.For your power supply, pay attention to the voltage and amperes, use one with at least 12V and preferably 5A. Print:I used the Ender 3 V3 KE, for me it took about 2h and 40min.I used 10% infill. Assembly: Cut the cable from the power supply unit at the end, where you will find a red (positive) and a black (negative) wire. Connect the red one to the Vin+ pin on the respective boards and the black one to the Vin- pins. Now take 2 make-female jumper wires and connect one to Vout+ and Vout- on the controllable board. Insert the female end through the hole under the screen and glue them in place. Now glue the other board in place so that everything is secure.If you like, you can also print a base plate or a holder for carrying. I left mine open because I think it's cooler this way haha.  Adjustable voltage modulehttps://www.amazon.de/DollaTek-Spannungswandler-einstellbare-Stromversorgungsmodul-Stromwandler/dp/B0CPP99K89/ref=mp_s_a_1_23?crid=FX3QNATSAB27&dib=eyJ2IjoiMSJ9.XTe7oRXfbZ-QDlM4ktkrusosVxlzXezLl8SUYSntbc8KX8nGENGorBKmTlH9Ckipiu3VAzk6GDWi8ETMps1tjPLPeTCtOKy4E-rmUFHQLJSpUkNHur--pR8bcnxwInK-QTI0WorbRZomeyxZRXbdR4w7a38_6VFv03SbC_3-ejlPOdzvFn2gC_8RXF4TnO5dHKeJhmd-xX7hLcmbWDY2Nw.DTYpwl4_0b8KcMDBzd5IAiGSH6fj4ISKZycUyjNEV8Y&dib_tag=se&keywords=DROK+180081+Numerical+Control+Step+Down+Voltage+Regulator+Stabilizer&qid=1720559256&sprefix=drok+180081+numerical+control+step+down+voltage+regulator+stabilizer%2Caps%2C1323&sr=8-235V 5A Voltage transformerhttps://www.amazon.de/LAOMAO-Converter-Spannungswandler-f%C3%BCrTelefon-schnelles-Blau/dp/B0C2H8YF9L/ref=mp_s_a_1_15?crid=2EFG2T0QS8RLO&dib=eyJ2IjoiMSJ9.uX5RjyZbRY87IQoQSHGcy1RGJH9iTfn8Q3OV-X0oNWM1VoU2O5VDPYzK3yjPaVIp3CbQ43e6bCXk2PmXYRE4wX9yMxmNe_GulAzZ0bj1Vu12lr5Ioy3a54Gv9crHFOYSIzPqF-SSZMlIi26-YOJlCCjzKufr12-5JPHI-BFaSRcdgQwKyQsopojAWRqvZx8rTgzcP-zBLLekGK3PlDCtdw.IILMOPd-S5FgKwRwD5klAfRH4xomDx05l4lEbLAoVXY&dib_tag=se&keywords=5V+dc+buck+converter&qid=1720559898&sprefix=5v+dc+buck+conver%2Caps%2C4283&sr=8-15Power Supplyhttps://www.amazon.de/Acboor-Spannungswandler-Netzadapter-Transformator-Universal/dp/B0CNKH3VKS/ref=mp_s_a_1_7?dib=eyJ2IjoiMSJ9.nZ43T6Imxa1idPljz7jpgnKJTviqfLJfBwmlx8458XTE4nbUMtOXM1asRoy2gSKVx-RZtBjNY_MkEPet8MRwGRTwywy28t3a96PFzWhtV5I9tizoVIB3QfIHtI31Xh1o7IFZ6TUjZGYsaLWnvz-1f9Gvpw2lGV_Z2p48DfEGjvg9JHiuZgPgLXv9B3fX1KQOTxLT88laKbKhXq5B5osgng.n8rF70iOAyj2MRYsswwHz7lvH3lhIlJzLCRctacklFc&dib_tag=se&keywords=24V+5A&qid=1721081774&sr=8-7Have Fun :)