Make powerful spot welder 18650 battery
Today I will build a powerful spot welding machine that does not use transformers. It uses mosfet and car battery. With 10 mosfet. It can easily reach 500A with a 100Ah battery. The controller is Attiny13A with driver TLP250. Welding time is 20mS. You can change it in source code. However, According to my experience. 20mS is enough for 0.3mm nickel wire
This project is free. Download file here www.mediafire.com/file/0pefqr...
All my projects are free, I design them on EAGLE 6.0. I uploaded it to Google drive. You need to use a web browser to download the file and open the file with winrar software (extract) on the PC. Open schematic file (.SCH) and PCB file (.BRD) with EAGLE software.
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#SpotWelder
#18650
#Battery
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