Mosfet Advice

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  • Brendon@aa
    Tinkerer
    • Dec 2023
    • 9
    • New Zealand

    #1

    Mosfet Advice

    Hi there - looking for a good mixed bag of mosfets to get started with and keep in my kit - there are several on Ali express - can anyone recommend a good mixed bag from there or anywhere else - I am doing all sorts of electronic repairs at a repair cafe thanks largely to Richard from “Learning Electronics Repair” videos

    Some relevant repairs to date where I’ve needed Fets are DC DC chargers, power supplies, (lots of plug packs) wind turbine controllers,

    thanks in advance

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  • Green Probe
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    First of all, I'd like to mention that I'm a novice when it comes to laptop repair, although I do have some experience with soldering.
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  • redbaron1007
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  • AppleLover123
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    by AppleLover123
    Hey guys,

    i have a asus motherboard here and as the title says after the first mosfet (in the picture) there is nothing more than 3.15v.
    I injected 19v and max. 1 amp at the charging port and there is not voltage drop or smth. It's just taking 19v and 1 milliamp.
    Then i tried to inject 19v and max 1amp after the current sensor and there it first takes 19v and 4 milliamps and after 2 seconds it is taking nothing (no current).
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    12-15-2024, 07:49 AM
  • Scotchmist
    Asus GA502D keeps blowing mosfet
    by Scotchmist
    I have an Asus GA502D, it had a blown mosfet which I replaced and the laptop booted into windows, a few mins later it shut off, the same mosfet was blown. I thought maybe just a bad mosfet but same thing happened again, a few mins in windows and shuts off.

    I have removed the mosfet and can run the laptop no problem

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    Can anyone point me in the direction of what could be the cause of this, could it be the controller rt3663bc?

    Thanks
    08-24-2024, 02:23 PM
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