kinarfi
Well-Known Member
I have a variable power supply that had some problems, so i'm rebuilding it, the transformer is good for over 20 amps and 24 volts DC and there are several occasions where I need all 20 amps. I have it mind to go linear again, but I'm hoping someone has some ideas that are better than mine. The attached design is basically what I had before except I plan to put a switch on it this time which will double the output voltage, from 24 to 48.
I have a couple of massive NPNs (5/16" fine thread stud) (that I haven't blown up yet, I've tried to get the data sheets, but can't find them), that I plan to use for the output xistor. I also have a bunch of IRF4905 and IRF3205 FETS and lots of heat sinks and fans plus a bunch of inductors, 33uh -47 uh & others that are power inductors and other stuff stripped out of power supplies. If I knew how to make them variable, that's the way I would go, but I have already disassembled them. NPN#163H72 8025 I think there is a Westing House symbol on it
Thanks,
Kinarfi
I have a couple of massive NPNs (5/16" fine thread stud) (that I haven't blown up yet, I've tried to get the data sheets, but can't find them), that I plan to use for the output xistor. I also have a bunch of IRF4905 and IRF3205 FETS and lots of heat sinks and fans plus a bunch of inductors, 33uh -47 uh & others that are power inductors and other stuff stripped out of power supplies. If I knew how to make them variable, that's the way I would go, but I have already disassembled them. NPN#163H72 8025 I think there is a Westing House symbol on it
Thanks,
Kinarfi
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