|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Solid State Talk all about solid state amplification. |
  |
|
|
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
 |
|
|
Thread Tools | Search this Thread |
2nd April 2010, 01:53 PM
|
#2 |
|
diyAudio Member
Join Date: Feb 2008
|
heating of mosfets
hi diyers
greetings built anthony holtons n channel mosfet amplifier orignal hexfets are irfp 240 but used irf 250 amp plays hexfets do not heat much after changing irf 250 to irf 460 hexfets get very hot any suggestions why so much heating thanking you takku |
|
|
2nd April 2010, 08:31 PM
|
#4 |
|
diyAudio Member
Join Date: Apr 2008
Location: Carlisle, England
|
The bias on irfp240 is around 3V4 per transistor and the bias on the irfp250 is a little higher.
Going from irfp250 to the 460 will probably have too high a bias and so too much standing current.
__________________
http://www.murtonpikesystems.co.uk PCBCAD50 pcb design software. |
|
|
|
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Heating the circuit? | lumanauw | Solid State | 2 | 31st December 2006 05:44 AM |
| n/p Mosfets vs depletion mod mosfets | marcello7x | Car Audio | 6 | 4th October 2006 05:01 AM |
| Direct heating triodes are really better? | Jaime | Tubes / Valves | 22 | 8th September 2006 02:40 PM |
| heating | kathodyne | Tubes / Valves | 3 | 2nd September 2005 12:49 PM |
| New To Site? | Need Help? |
