[Radu Motisan] wrote in to share a cool project he has been working on lately, a pulsed microspot welder/cutter. The device is capable of spot welding thin metals such as foils and battery tabs by ...

This spot welder contains a very large capacitor that is charged to a precise voltage then discharges through the material to produce a controlled cut. There are 5 key segments that make up the design ...

[Julian] needed to weld a bit of nickel to some steel and decided to use a spot welding technique. Of course he didn’t have a spot welder sitting around. Since these are fairly simple machines so ...

There are many applications which require pulse power. The needed burst of energy is derived by rapidly discharging a previously charged capacitor. As the energy stored in a capacitor is equal to ...