Noise from on-board DC-DC converter



  • sherloc987

    We were able to attenuate the ripple by bypassing VCC to ground with a 470 uF capacitor at the point where the VCC is applied to the OLED display.  However, the amplitude of the ripple is still sufficient to produce less than optimal results from the other circuitry on the board.

  • Ted M.
    NHD Staff

    The DC-DC converter on the OLED display is necessary in order to provide a higher DC voltage level that is required to drive the OLED glass itself.
    Using the 470uf capacitor to reduce the ripple is a good solution if the noise level is affecting the other circuitry in your design.



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