mosfet mayhem the sequel

Thread Starter

ingram010

Joined May 2, 2007
6
Hello,

I am trying to switch 500vdc supply, I am using (Transistor,MOSFET,N Channel,SPP02N60S5) supplied buy RS.

Problem - the 500v supply is on wether or not the gate has a supply.

Attached is a sketchy schematic.


Please, please can someone help?

Many Thanks


John
 

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John Luciani

Joined Apr 3, 2007
477
Besides connecting the grounds together (as previously mentioned) you really should
have a zener diode across the gate and source of the MOSFET (probably a cap too)
to suppress switching transients.

(* jcl *)
 
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