FET Help

Thread Starter

arthur92710

Joined Jun 25, 2007
307
I have a IRF540 FET and i need it to be switched on and off with a 555. It will power something that needs more current then the 555 can out put so the Fet drain and source will be connected directly to the battery. But when i do this it does not work right. It looks like the 555 is powering the led and not the 555.
I tried various configurations of the pins but they all work the same way.:confused: Can you help?

video
 

hgmjr

Joined Jan 28, 2005
9,029
I watched the video you provided and I observe what you are talking about.

I wonder if your FET has been damaged perhaps. ESD perhaps has done it in.

hgmjr
 
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