Methods for testing 3 pin Barrel jack PSU's?

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  • abajor
    Senior Member
    • Feb 2024
    • 178
    • United States
    #1

    Methods for testing 3 pin Barrel jack PSU's?

    I'm getting pretty annoyed with the lack of options for testing HP, DELL, ASUS etc. Laptop PSU's the old 2 pin jacks were easier.

    From what I understand the +V is on the internal barrel ring, and the control/sense voltage is on the center pin.

    I was wondering if someone has made a laptop PSU load tester where technicians can easily scope and load these 3pin laptop PSU to see if it's failing?
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