SuperCapacitor 16V 83F bank with step-down DC-DC converter

cults3d

YouTube Video https://youtu.be/GoQnSuc2CF0 Download package Includes AutoCad Fusion 360 source file ! I use the supercapacitor connected to a 100W solar panel to provide immediate power without having to worry about carrying a heavy battery. It works very well. printable diagonally on a 210x210mm print bed This is a 16.2V 83F Samwha Green-Cap Supercapacitor bank comprised of 6x 2.7V 500F capacitors is series. The design also included a step-down DC -DC converter which is adjustable. its up to you what voltage you want to set the DC-DC output too I designed this case to house this particular version LM2596 DC DC Step Down Converter Voltage Regulator LED Display Voltmeter 4.0-40V to 1.3-37V Buck Adapter Adjustable Power Supply PLEASE CHECK YOUR PCB SIZE BEFORE PRINTING! I MEASURED MY PCB WITH A DIGITAL CALIPER AND IT MEASURED 65mm X 39mm EXACTLY Note there are many versions that look similar but have key differences. Make sure you use the one that is exactly as shown, otherwise the cutouts for the potentiometer , pushbutton may not lineup. Compare against the PCB pics, it can be difficult to tell as there are subtle differences. Here is the one I purchased from Amazon. It will work. https://www.amazon.ca/gp/product/B07XXSK68F/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1 I used 10x 3mm hex screws with nuts to mount the anderson connector holders, USB plate and terminal block. you may want to go with 16mm length but I used various lengths, Supercap https://www.aliexpress.com/item/1005004547093744.html?spm=a2g0o.productlist.0.0.6f565811If029a&algo_pvid=bae5f225-6aa5-46c1-b8de-5a1028bceba5&aem_p4p_detail=202210180948053618260416290960000525634&algo_exp_id=bae5f225-6aa5-46c1-b8de-5a1028bceba5-0&pdp_ext_f=%7B%22sku_id%22%3A%2212000029564864214%22%7D&pdp_npi=2%40dis%21CAD%2190.79%2143.58%21%21%219.44%21%21%402101e9d016661116852347225ec513%2112000029564864214%21sea&curPageLogUid=oHyIVgSCYlfi&ad_pvid=202210180948053618260416290960000525634_1 The rocker switch is a R13-66 https://leeselectronic.com/en/product/3358-3358ROCKERSWITCHONOFFONR19A62BBE.html USB Break out board. https://www.amazon.ca/gp/product/B07NP7JRYX/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1 I jumpered D+ and D- pins and set the DC -DC converter output to 5VDC and got 1Amp charge rate from each USB output charging my iphone The button is very small, some slicers will probably prompt you to convert to a different unit , don't do this. otherwise the button will explode into a giant size and drop on your slicer bed. At least this is what was happening in my case using Simplify3d. to attach the top cover to the bottom can, use #4 flat head screws. https://www.homedepot.ca/product/paulin--4-x-1-2-inch-flat-head-square-drive-steel-wood-screws-zinc-plated-100pcs/1000140508 To install the Anderson PowerPole connector into the Anderson panel-mount shrouds , first connect the red and black connectors together side-by-side using the “Red-Right, Tongue-Top”, which designates a 12V connection with Red (positive) to the right of Black (negative) when viewed with the contact tongue facing up. DO NOT INSTALL THE PINS YET. Once the two Andersons are together, using your desk to push them in from the backside of the shroud, noting the cutouts on the inside of the shroud which should match the Anderson connector profile. (note its possible to install them upside down so take care, if backwards they will not go in properly. Either way it will take a bit of force, use the desk to push the connectors into the shroud until the back of the Anderson is flush with the back of the shroud. Electrical connections. Disclaimer- Supercapacitors can output very high current and can be dangerous. Take care and if you do not know what you are doing, ask someone who has experience for help. I am not experienced enough to help you and offer this design for educational purposes only. I do recommend all output connections be fused for safety. End of disclaimer. I have the Supercapacitor outputs connected to the the two andersons and terminal block allowing 4 x direct capacitors connections (2x via terminal block and two via the anderson connectors. The switch is connected to the input side of the DC-DC converter to turn it on and off. For the output of the DC-DC, I chose to set it to 5VDC and connect it to two 5v USB jacks. This is optional, I've provided a blank plate which you may want to drill out and add your own output connector. Feel free to adjust the output voltage of the DC-DC connector to suite your needs.