Spot welder

i need a good spot weder circuit but i need to understand how it works so i can make modifications. and for the more advanced/ experienced people can you make it so i cant change the amperage unless circuit lab does not have the parts or it does not exist.

note: pls explane how ground work and why circuit lab wants one in every circuit. because i know you need one for like dangerous like a spot welder but still why for a led blinker. this question is for more programer people.

by ipelengmotsatsi
March 07, 2013

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