100 amp variable voltage source
Irfz44n inexpensive 40 amp mosfet
Instant start battery charger
With start and stop switch
Relay is a starter type for high current.
Transformer current can be limited w/input resistor
Very dangerous use with proper supervision.
Arc flash hazards, battery explosion hazard.
For educational purposes only.
Do you have a old transformer type welder hanging
Around, they used to be about 24-36 volts.
This type of transformer is variable current type.
If you did want to try this, the diodes
Are welding machine diodes
Internal wiring will be #6 or better.
This circuit could be add-on for your welder.
Cables and connectors are available at your
Local welding supplies dealer.
The capacitors at output are not required
For battery charger as the battery is a capacitor.
