I need some expert advice on a power supply circuit. Normally I would have asked my friend who was an electronic wiz, but he's just passed away this year so I need a new electronic expert. I know this is probably a lot to ask, but I figured there might be some kind soul who might lend a little of their time. I would gladly exchange what knowledge I have on other subjects such as AutoCAD, Linux, programming, etc.
I want to make a power supply circuit for a foam cutter and I've been researching them on the Internet, but I don't know enough about electronics to judge which one would be best and if any of them could be modified (safely) to fit some of the parts I already have. My skills are limited to soldering and following a good set of instructions, not design.
I've found these different designs:
wire. So I have some stainless steel wire (0.020in DIA) left over from a different project. I have no idea what ohms/foot rating this wire has. Also, I have a working transformer that is 120V input and
12V 8amp output that I would like to utilize. (Most of these designs call for 24V transformers.)My questions are:
- Which design do you think would give the best control of the wire temperature?
- Can any of these designs work with the wire and transformer that I already have? If so what changes to the components (if any) would be required?
Thanks in advance Brian