Hello everyone, at the outset I would like to point out that my knowledge in the subject of electronics is small, so please be understanding.
I am going to build a sheet metal spot welder using 2 microwave transformers, rather simple without welding time control, my question is how to control the intensity on the target electrodes? If you cannot do without some control boards, could someone make such a PCB for me?
I am going to build a sheet metal spot welder using 2 microwave transformers, rather simple without welding time control, my question is how to control the intensity on the target electrodes? If you cannot do without some control boards, could someone make such a PCB for me?
You can do it in a similar way as it works in welding machines, i.e. in series with the transformer, on the primary side, you can install a coil with an adjustable air gap in the core. Or, you can control an incandescent dimmer instead. The factory ones tend to fall off, because they may object to working with such a high-powered load, but you can use the following layout:
