I need to switch a MOSFET using the output from a 555. But the squarewave is 5V and the load needs 12V (and the MOSFET needs 12V to turn on properly?). Will this circuit work ? Also have I drawn the MOSFET the right way round ?

Thanks,

-Chris

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The circuit can work, but You need the transistor because the load in the source. If You use another type N-FET with TTL-gate - no need the transistor. Another possible solution: run the 555 with same supply (12V).

 

Hey, I was just wondering what program was used to genereate the schematic in the original post? I have Visio right now and I hate it more and more on a daily basis (it works great for my databases but for electrical engineering it blows) especially after I found out how it numbers IC pins, no Bill, we don't count that way... Thanks !

__________________
<IfDefine GOT_ROOT>
LoadModule mod_critical modules/critical.so
</IfDefine>
----++++ MOD_CRITICAL

 

Hi,
I used Circuitmaker student. You can download a free demo here
http://www.microcode.com/downloads/student.htm

 

Mmmmm, Not Visio - (Homer Simpson Voice)

__________________
<IfDefine GOT_ROOT>
LoadModule mod_critical modules/critical.so
</IfDefine>
----++++ MOD_CRITICAL