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Capacitive touch panel detecting false touch

Discussion in 'General Electronics Discussion' started by Boopathi, Jan 21, 2020.

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  1. Boopathi

    Boopathi

    1
    0
    Jan 21, 2020
    Hi All,
    I'm using capacitive touch panel LCD for my project. My project does not have earth connection. Due to this, touch panel detecting false touch frequently. Touch panel having FT5446 touch controller.

    1) When connecting LCD casing to earth terminal, touch is working properly.
    2) Connected to different power supplies without earth, touch function is not working.
    3) Connected to battery, touch function is working properly.

    Due to project requirement i can't use earth. Can anyone give me some suggestion to overcome this issue.
     
  2. HellasTechn

    HellasTechn

    1,523
    212
    Apr 14, 2013
    I suggest you make sure that the problem is not caused by some error in the PCB design or PCB related in general.
     
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