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amron
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Joined: 11-August 07
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amron

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11 Aug 2007
Hi people
I can use some help here - I've assembled a mig welding power supply (constant voltage) from a transformer with 30Vac 140A secondary winding that is connected to a bridge diode rectifier and an inductor.
the problem is that I can not regulate the output voltage - I must have it variable between the max output down to about 15Vdc. please let me know if you have some idea how to do it ( I think with scr's?)
Thanks.
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