mchezz

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  • December 1, 2015 at 12:38 pm in reply to: Shield Grounding #9063
    mchezz
    Member

    Thanks, that’s what I was thinking of doing.

    November 24, 2015 at 6:23 am in reply to: AC Voltage at USB Ground #8980
    mchezz
    Member

    Great, thanks so much for your help on this!

    November 23, 2015 at 9:54 pm in reply to: AC Voltage at USB Ground #8978
    mchezz
    Member

    If I understood your suggestions correct this is what I tried. I connected resistors between the power supply “-” DC output on the Tinyg and to the PC USB ground (this is where I normally read 9 volts AC). With a 1k ohm resistor the potential across the resistor read .124 volts AC and when I did the same with a 10 ohm resistor the potential went to 0.

    November 23, 2015 at 5:26 pm in reply to: AC Voltage at USB Ground #8975
    mchezz
    Member

    I don’t have a wall wart readily available to plug in. I will see about setting one up. As for the AC ground, I checked to see if grounds were connected using the continuity function on my DMM which may not have been the correct way. I just checked the potential between the AC ground on my power supply and the Tinyg ground and I see the same 9 volts AC I saw at the PC USB ground.

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