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Thanks for the info, will look into it. I spoke to someone here at work and he suggested to use three thyristor switching modules before the diode bank. Will let you all know when i have this sorted. Thanks for all the info so far.
Okay yes the on signal is from a relay in the wire feed. Can one not use a triac or thyristor in front of the diode bank instead, will it not be easier than after the diodes? Yes it also has a delay circuit for burnback otherwise the wire sticks to the job. that is fairly easy to do. It`s just...
That`s my concern too, how to switch it on fast and to turn it off again. The heat sink is the least of my worries because there is sufficient room for it and the machine has a fan that runs continuous.
Hi
I want to use a IGBT(SKM300GA12V) for a solid state contactor.
This is for a HOBART mig welder where they used a big mechanical contactor on the secondary side of the transformer.
This contactor switches 200A DC. I want to replace it with something non mechanical because the mechanical...
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