Ryobi bench top power supply

thingiverse

Much credit goes to [pwkalahar](https://www.thingiverse.com/thing:2467237) for the ingenious idea. I took it a step further, but had to start from scratch since this project is specifically designed for a DPH3205. This portable bench top power supply was created with the intention of making my TS100 portable. With an abundance of batteries at my disposal, it seemed logical to run it at 24v. Therefore, I designed this to fit a [RD DPH3205](https://www.aliexpress.com/item/RD-DPH3205-Buck-boost-converter-Constant-Voltage-current-Programmable-digital-control-Power-Supply-color-LCD-voltmeter/32762131242.html?spm=a2g0s.9042311.0.0.27424c4dOTqKur) power supply. It may also fit other versions, like the 50v15a, but I don't have them to verify. Fitment is a bit tight where I had to use a deburring tool. Additionally, the back wall, where the circuit board sits, measures 96.4mm x 84mm in case you want to try fitting a different power supply board. On the input side, make sure never to plug in a power brick while a Ryobi battery is installed. I don't have any diode protection; just an inline [On/Off Switch](https://www.aliexpress.com/item/10PCS-3-Pin-3A-250V-10-15mm-Black-Button-Rocker-Switch-ON-OFF-AC-10X15-Mini/32838043771.html?spm=a2g0s.9042311.0.0.27424c4dwttI1D) takes care of it. Shopping list: [DPH3205](https://www.aliexpress.com/item/RD-DPH3205-Buck-boost-converter-Constant-Voltage-current-Programmable-digital-control-Power-Supply-color-LCD-voltmeter/32762131242.html?spm=a2g0s.9042311.0.0.27424c4dOTqKur), [LM2596](https://www.aliexpress.com/item/LM2596-DC-DC-Adjustable-buck-converter-Step-Down-Power-Reverse-Polarity-Protection-LED-Indicator-Enable-Interface/862353207.html?spm=a2g0s.9042311.0.0.27424c4dOTqKur), [Contact Plate Holder](https://www.repairclinic.com/PartDetail/Contact-Plate-Holder-Ass-Y/300001044/4125137), [XT30](https://www.aliexpress.com/item/5-pairs-female-and-male-XT30-Bullet-Connectors-Plugs-for-RC-Lipo-Battery-FPV-airplane-quadcopter/32662454319.html?spm=a2g0s.9042311.0.0.27424c4dT3KvxI), [On/Off Switch for power brick](https://www.aliexpress.com/item/10PCS-3-Pin-3A-250V-10-15mm-Black-Button-Rocker-Switch-ON-OFF-AC-10X15-Mini/32838043771.html?spm=a2g0s.9042311.0.0.27424c4dwttI1D), [Female DC Jacks](https://www.aliexpress.com/item/Hot-sales-10Pcs-DC-022-5-5-2-1-5-5x2-1mm-5-5-2-1mm/32259883750.html?spm=a2g0s.9042311.0.0.27424c4dwttI1D), [USB Female Connector](https://www.amazon.com/gp/product/B0094DXENY/ref=oh_aui_search_detailpage?ie=UTF8&psc=1), and [Banana Jack](https://www.amazon.com/gp/product/B00UHFF2ME/ref=oh_aui_search_detailpage?ie=UTF8&psc=1). For wiring, the DHP3205 has 4 inputs and 4 outputs. DC-in and inline switch take 2 inputs, while Ryobi contacts use up the other 2. The LM2596 handles 2 outputs, and banana jacks take up the last 2. You can then use the banana jacks to feed power to the DC-out and XT30. Thanks for stopping by, and I hope you find this useful.