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  1. tatus1969

    kWeld - "Next level" DIY battery spot welder

    Updated schematics (rev.1). I plan to implement an energy based pulse control instead of a simple timer. i will try to see how that works with one single pulse, maybe that eliminates the need of a cleaning pulse. Constant energy delivered to the weld spot should result in more consistent...
  2. tatus1969

    kWeld - "Next level" DIY battery spot welder

    The design is finished, boards and parts are ordered :D
  3. tatus1969

    kWeld - "Next level" DIY battery spot welder

    Thanks for the link, that has saved me an experiment. I will directly continue with board layout, the FETs will certainly do the job.
  4. tatus1969

    kWeld - "Next level" DIY battery spot welder

    Hi guys, as part of my kicksurfer project (I was tired of my battery pack manufacturer of wanting >700€ each time I am asking him to prepare a few samples of packs from another cell type), I have started desigining a DIY spot welder. After some googling, I realized that even when building it...
  5. tatus1969

    Custom FOC build

    After having this one literally explode like a fireworks the second time in a row without finding the probem, my 14yr old son came up with this one: Resistance is futile - We are the Watt.
  6. tatus1969

    Custom FOC build

    Thanks :-) I'm using IAR, unfortunately a quite outdated version. But afaik IAR is using GCC anyway, so it should be quite easy to port it. I just didn't take the time yet, plus that I like the IAR debugger in combination with a Segger JTAG dongle.
  7. tatus1969

    Custom FOC build

    Last week I completed one of my most recent projects, and I took the time to take some footage that I wanted to share with you. Key specs of this controller: 16-90V, 23A Hall and encoder inputs Powered by STM32F405, running ST FOC library Connected to it: a PMSM servo motor, originally speced...
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