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
    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.