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Recent content by rfowler

  1. rfowler

    need new design Tip for motor control application

    Have some experiences with invertors, specifically 50kVA static invertors for seam welder application (aerosol cans and stuff).<br> Dedicated 3-phase PWM ic's are available from Siemens and<br> GEC (MA828), these interface readily with any cpu or microcontroller with minimal software overhead...
  2. rfowler

    power factor correction

    Require a passive alternative to pfc as opposed to the switch mode option. International Rectifier app.note AN998 briefly describes a technique "Valley-Fill Passive PFC". I am searching for more details on this. Any experiences or literature references would be welcomed.<br> <br> Thanks<br>...
  3. rfowler

    Analog Design?

    Hello All<br> <br> Have just joined this forum. Rather dissapointed to note so little activety - with postings separated by several months!<br> I am experienced in analog, proximity sensors, power electronics, embedded systems, hardware and such and am really keen to see this forum work for...

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