AEG mosfet circuit help

Discussion in 'Power Electronics' started by Vuki13, May 26, 2018.

  1. Vuki13

    Thread Starter New Member

    May 26, 2018
    1
    0
    Hello everyone, I am new to the forum and this is my first post.
    I am planning to make a basic mosfet to switch my aeg ( automatic electric gun ) for airsoft. Currently I am using 7.4V li-po battery and with time I will switch to 11.1V li-po battery and I expect around 60-70A peaks and maybe 30-40A constant current draw.
    I bought 10 50n06 n channel smd mosfets and I am planning to use 3 in parallel on a pcb to make the design bulletproof.
    Since I am not much of an expert on this field, I can you help me with choosing the right gate resistor and gate to source resistor?
     
  2. danadak

    Distinguished Member

    Mar 10, 2018
    2,795
    602
    Post your current schematic.

    Regards, Dana.
     
    Last edited: May 26, 2018
  3. avayan

    Member

    Oct 30, 2015
    33
    6
    With such a simple system, there is not a whole lot to worry about. If you had to worry about dead time, then the gate resistor would be crucial. But if it is a single low side switch (even when there are three in parallel), any 5 to 30 ohm resistor per gate should do the trick nicely. The pull down resistor is even simpler in nature. 10K is what I would start with. Good luck!
     
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