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Re:Is it possible to wire a BLDC PWM motor controller input in parallel??

Discussion in 'Power Electronics' started by #R0Borg, Jan 6, 2021.

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  1. #R0Borg

    #R0Borg

    1
    0
    Jan 6, 2021
    Hello EP members,
    I have a question being a novice to power electronics circuitry regarding paralleling 2 PWM motor controllers to produce twice the amperage of a single ESC but having the same output voltages as one PWM ESC;is this ciruit viable and if so would i need some sort of impedance matching circuit for the input to both PWM ESCs??:confused:

    Thanks in advance for any helpful replies!!
     
  2. Bluejets

    Bluejets

    4,424
    938
    Oct 5, 2014
    Nothing in place to sync the pwm between the two controllers so I'd think no way.

    What would be possible would be to up the number of mosfets on the output for a higher current handling capability but there are limits there as well.

    More mosfets means more gate capacitance and possibly a requirement for mosfet driver to be added.

    Much easier all round to get an esc made for the job.
     
  3. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,449
    2,809
    Jan 21, 2010
    Yeah, as above.

    No problems paralleling the inputs, but paralleling the outputs would be bad ju-ju.
     
  4. ColKlonk

    ColKlonk

    12
    2
    Dec 22, 2020
    Best is to just go big. ;)
     
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