really quick simple question -- steve wards micro sstc
teslaguy, Sun Sept 02 2007, 08:42AMI just ordered the parts for it and i was wondering if it would be safe to run the mosfet off of reguated line voltage instead of the 35vdc? i have some bigger mofsets on hand to so i might try to switch a newer one in to. Would I be safe with line voltage or do i need bigger r3?
is the circuit for reference thanks much.
Re: really quick simple question -- steve wards micro sstc
Steve Conner, Sun Sept 02 2007, 10:20AM
Do you mean "line" as in 120V AC from a wall socket? If so, that's probably not a good idea as the voltage across the MOSFET can be several times the supply voltage (at least 3 times) so the 160V DC you get from rectifying the line could possibly blow a 600V MOSFET. Step it down with a transformer out of an old stereo or something. This also isolates the whole mess from the line and reduces your chances of getting fried.
Steve Conner, Sun Sept 02 2007, 10:20AM
Do you mean "line" as in 120V AC from a wall socket? If so, that's probably not a good idea as the voltage across the MOSFET can be several times the supply voltage (at least 3 times) so the 160V DC you get from rectifying the line could possibly blow a 600V MOSFET. Step it down with a transformer out of an old stereo or something. This also isolates the whole mess from the line and reduces your chances of getting fried.
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