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Need spot welding circuit.

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pico

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homemade spot welder

Need spot welding circuit for mobile phone battery connection.
Please help me.
 

House_Cat

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spot welder circuit

Here is the URL for a nice homemade spot welder.

h**p://www.frii.com/~katana/spotweld.html

(*=t)
 

lollobrigido

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hobby spot welder

I built last year a spot weld to weld inox slab.
I used a tranformer of about 3kVA where I rewing the secondary with a 10mm^2 insulated wire, about 4 turns.
Very important is the pliers. I used two electrolitic copper tips.
however to build battery pack you don't need too much power and everything is less critical. Use a pedal as switch.

Lollobrigido
 

hynix

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home made spot welder

What is the diff. in the doing a spot welding by DC and AC,
Can any body help me to get the schematics for the plasma welding using IGBT.
thanks :)
 

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