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Topic: Me vs. P-Channel MOSFET & LED | Led never turns off completely (Read 4600 times) previous topic - next topic

MarkT

TO220 MOSFETs are G-D-S from left to right.  The one in the picture is wired with drain and source swapped so that the integral diode is forward biased and taking the current.  The gate cannot do anything about that!
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OptimusPrime

Hey you all!
This was the solution!!!  :smiley-red:    - and a fairly embarassing mistake of me ;)
I also figured out that my MOSFET ist not working on logic level - so i will have to put a transistor before...

Thanks a lot to all the people giving a helping hand!

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