| Electronics > Projects, Designs, and Technical Stuff |
| Homemade IGBT MIG welder with ATX PSU parts. [blown yet again][blown count: 5] |
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| cur8xgo:
--- Quote from: Refrigerator on June 23, 2019, 01:15:32 pm --- --- Quote from: DannyTheGhost on June 23, 2019, 10:28:43 am --- --- Quote from: Refrigerator on June 23, 2019, 10:06:57 am --- Synchronous rectification would over-complicate things. --- End quote --- Sometimes you need to complicate your design when you don't want to dissipate over 50 watts from rectifier --- End quote --- A CPU cooler can handle that no problem. --- End quote --- Ya I dont think you will have an issue getting rid of 50W from TO247 |
| cur8xgo:
--- Quote from: Refrigerator on June 23, 2019, 08:11:11 am --- --- Quote from: james_s on June 23, 2019, 03:37:16 am --- Also how experienced are you at welding? MIG is one of the easier ones to learn but it still takes a great deal of practice to get good at it. --- End quote --- I learned to MIG weld when i was 13, it's basically a hot glue gun for metal. Assuming the welder is correctly set up it takes about 30 minutes to learn MIG. --- End quote --- Yep even a poor mig welder can get the job done for simple projects....I've taught people who had zero mechanical aptitude and never even knew what welding really was how to FCAW in about 30 minutes..then they practiced on their own for about an hour and were able to put tubing together to make things. Its motivation that is really key |
| strawberry:
Synchronous rectification is not complicate. Same gate drive sigal for rectifier mosfet gates |
| Refrigerator:
--- Quote from: strawberry on June 23, 2019, 03:32:39 pm ---Synchronous rectification is not complicate. Same gate drive sigal for rectifier mosfet gates --- End quote --- I'd have to order new parts and wait for them to arrive = nope. |
| Refrigerator:
--- Quote from: cur8xgo on June 23, 2019, 02:54:32 pm --- --- Quote from: Refrigerator on June 23, 2019, 01:15:32 pm --- --- Quote from: DannyTheGhost on June 23, 2019, 10:28:43 am --- --- Quote from: Refrigerator on June 23, 2019, 10:06:57 am --- Synchronous rectification would over-complicate things. --- End quote --- Sometimes you need to complicate your design when you don't want to dissipate over 50 watts from rectifier --- End quote --- A CPU cooler can handle that no problem. --- End quote --- Ya I dont think you will have an issue getting rid of 50W from TO247 --- End quote --- Don't forget i have two diodes in parallel. |
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