Loading...
« previous topic   next topic »
Pages: 1 [2]   Go Down
Author Topic: Me vs. P-Channel MOSFET & LED | Led never turns off completely  (Read 1764 times)
0 Members and 1 Guest are viewing this topic.
MarkT
0
Offline Offline
Tesla Member
***
Karma: 71
Posts: 6622
Arduino rocks
View Profile
« Reply #15 on: August 11, 2011, 06:53:30 pm »
 Bigger Bigger Smaller Smaller Reset Reset
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!
Logged

OptimusPrime
Offline Offline
Newbie
*
Karma: 0
Posts: 35
View Profile
« Reply #16 on: August 17, 2011, 05:13:59 am »
 Bigger Bigger Smaller Smaller Reset Reset
Hey you all!
This was the solution!!!  smiley-red    - and a fairly embarassing mistake of me smiley-wink
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!
Logged

Pages: 1 [2]   Go Up
Print
« previous topic   next topic »
 
Jump to: