Connecting a single DSPIC PWM output pin to control 9 IGBT bricks simultaneously

Discussion in 'Power Electronics' started by selvac19, Dec 23, 2017.

  1. selvac19

    Thread Starter New Member

    Dec 23, 2017
    26
    0
    Hello all!

    Thanks in advance if any insight is provided to help me find the best solution.
    The general scope of the project is to obtain a constant current generation of 767 amps from 9 buck converters connected in parallel.
    My questions regards on how to connect the single PWM output pin that will control the switching operation of the 9 IGBTs. The 9 IGBTs need to be operated by the same output pin at the same time.
    I had two ideas however I am not sure if they will work. One idea is to connect the 9 IGBTS in parallel to the same gate driver. The second idea is to connect a demultiplexer between the DPIC PWM output pin and one driver for each of the 9 IGBTs.
    Secondly, which is the best software or mechanism or way to simulate either of the two ideas I briefly explained above.
    The IGBT model that will be used is the MID 300 - 12A4.

    Thanks again for your help.
     
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