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  1. Mihai_F

    Electric Drift Trike Build

    Hy there, I will present here my electric drift trike build, with details for mechanical and electrical parts. It all started after i decided to migrate my projects to STM32, then started to make my FOC code and controller, here is the FOC thread FOC questions So i needed a "vehicle" to test my...
  2. Mihai_F

    Selling 22Kw motor

    Hello Guys! Due to some personal reasons i have to sell my project, all its contents. This is my project: 20Kw motor and 300A ESC (ultralight aircraft propulsion system) Here is what i'm asking for my propulsion system, detailed description is in the upper link on the first pages. BLDC...
  3. Mihai_F

    Motor Winding Calculations & Cooling Design

    Hello guys, I have been searching the internet for a log while, about formulas and books how to calculate the windings of a 3 phase motor, i.e. nr of turns, wire thickness etc. I found some good theory books, some good sites explaining stuff, but haven't found an actual practical example with...
  4. Mihai_F

    FOC questions

    hello to all, I have studied FOC motor control for a good while now, i understanded most of it. If i remember well you have done you own FOC code, so i have some questions about FOC algorithms to clear things out. So far i understand and made (code) the following: clark transform from Ia, Ib, Ic...
  5. Mihai_F

    Magnet coverage and hall sensors

    Hy there, as you might know my 20kw motor (see photos here https://endless-sphere.com/forums/viewtopic.php?f=30&t=113852), it has 40 magnets 10x5x40mm N45 and the space between them is about 5.25mm, and that gives a magnetic coverage of about 65% (a bit to low for my opinion). Now at low load...
  6. Mihai_F

    20Kw motor and 300A ESC (ultralight aircraft propulsion system)

    Hy guys, i will move here the discussion about my 20Kw motor and 300A esc. This is been a project for my past 6 years, it's been a huge learning curve. Before i started this project my experience with electronics was with power audio circuits, analog stuff, and nothing digital. I will start...
  7. Mihai_F

    300A bldc esc, mosfets ringing, help

    Hello community, i have been working on a big project for the past 6 years , https://www.avrfreaks.net/forum/electric-propulsion-system-ppg-and-ultralights, you can find it here for details, i can post it here also if there is interest. The main problem that i have is that low side FET-s...
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