These diodes can be used to make the spot welder more reliable when using very high welding currents or long welding cables
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No longer available on Tindie If you want to buy this product, please visit my shop https://malectrics.eu/ What is it? A set of 2 diodes. Schottky: VS-100BGQ015 Mouser.com Part: 844-100BGQ015 TVS:…
Read More…If you want to buy this product, please visit my shop https://malectrics.eu/
I do not make any profit on these diodes. It is more like a service, so you can upgrade your Spot Welder relatively cheap if you want. The cable for the diodes should be 10mm² ( 7 or 8 awg). For the tvs diode you can also use thinner cable if it is just a very short piece.
These diodes can be used to make the spot welder more reliable when using very high welding currents or long welding cables. They reduce the peak voltage which appears because of the inductance of the welding wires. This is necessary because high voltage spikes could damage or kill your mosfets. A very detailed explanation whats going on can be found here https://endless-sphere.com/forums/viewtopic.php?f=14&t=81400&start=550#p1218325
I also did some basic oscilloscope measurements myself. You can see them with a short conclusion on Instructables
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