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???
09/27/10 14:07
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#178753 - Series resistor to the gate
Responding to: ???'s previous message
Thanks for your reply Erik!

I did try to remove the 1K gate resistors on each of the FETs at once, and at switch-on ALL the FETS popped. Not the satisfying sort of pop with smoke and a bang though. The FET seems to always conduct, varying slightly with changes in the gate bias.

I also tried a 10k pull-up with the 1k in place at the FET's gate, same problem. Will try without the 1k resistor, thanks for the advice! :-)

List of 14 messages in thread
TopicAuthorDate
89S52 and BS170?            01/01/70 00:00      
   As written....            01/01/70 00:00      
      Exactly!            01/01/70 00:00      
   almost true            01/01/70 00:00      
      Series resistor to the gate            01/01/70 00:00      
         Most 8051's            01/01/70 00:00      
            Re: Most 8051's            01/01/70 00:00      
   Several reasons...            01/01/70 00:00      
      pop explained in earlier posts            01/01/70 00:00      
         RE: pop explained in earlier posts            01/01/70 00:00      
      RE: Several Reasons            01/01/70 00:00      
   Update: May be ESD after all            01/01/70 00:00      
      There is a trick...            01/01/70 00:00      
         RE: There is a trick...            01/01/70 00:00      

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