Increasing resolution of DTs MIBAM library?


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  1. #1
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    Default Re: Increasing resolution of DTs MIBAM library?

    Well that's nice idea, but selection of pins to where you can map HPWM - is quite limited as I know.

    I had another idea - use MIBAM as is, but feed outputs to logical AND gate and use built in PWM generator to "chop" these outputs for better resolution. However, in case of 48 outputs, this will require 12 additional chips (considering that 1 chip is 4 AND gate), making such implementation less practical.

  2. #2
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    Default Re: Increasing resolution of DTs MIBAM library?

    Hah, just solved it
    since I have output transistors, previously I was feeding their bases with output from MCU
    Now I will feed their emitters via MCU, connect all bases together and connect them to PWM output of MCU

  3. #3
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    Default Re: Increasing resolution of DTs MIBAM library?

    And then you can use the dedicated PCA9685PW chip with 16 channels, 12-bit resolution, cheap and very reliable. Also the PCA9956BTW at 24 channels @ 8 bit.

    Ioannis
    Last edited by Ioannis; - 17th September 2025 at 16:59.

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