|
|||||||
| 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 |
17th September 2011, 11:51 AM
|
#1 |
|
diyAudio Member
Join Date: Dec 2010
Location: Malaysia, Selangor
|
transistor mounting technique ? Heatsink
Well..... there are 2 ways (at least what i know) of attaching transistor, which need heatsink. (i) Direct solder to pcb (ii) mounted on heatsink, connect to PCB through wire
So, skip the advantages and difference. What is their separate precaution need to be taken, especially heatsink mounted ? What i know is that the wire connect to PCB need to be as short as possible, but how long is permissible ? (well.. limits  )Could i twist the 3 terminal of wire together, or crossing ? ( like this finger) Or should i place as far as possible ?Does getting a conductive material wrap around the wires will help ? (minimize distortion by electromagnetic radiation) |
|
|
17th September 2011, 12:01 PM
|
#2 |
|
diyAudio Moderator
Join Date: Sep 2007
|
Leads to output devices should be as short as possible. To not do so is asking for trouble with unwanted oscillation and stability problems.
If you must use wire then keep it all separate and no shielding.
__________________
------------------------------------------------------- A simulation free zone. Design it, build it, test it. |
|
|
|
17th September 2011, 12:12 PM
|
#3 |
|
diyAudio Member
Join Date: Dec 2010
Location: Malaysia, Selangor
|
what is the typical length when you say short ? is 5cm long ? or better not to use this method ?
Well.... I haven't got my heatsink, so i don't know how i'm going to attached to it, using wire(more flexible) also seems to make the amp prone to unstability, any other method i could use, and also provide me the flexibility of choosing heatsink ? |
|
|
|
17th September 2011, 12:16 PM
|
#4 |
|
diyAudio Moderator
Join Date: Sep 2007
|
If it's for the amp in your other thread then you will probably be OK as the design of that amp lends itself to being a stable design. 5cm isn't too bad but make it as short as possible.
__________________
------------------------------------------------------- A simulation free zone. Design it, build it, test it. |
|
|
|
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| heatsink mounting Q | woodturner-fran | Pass Labs | 6 | 15th April 2008 09:00 PM |
| Mounting a Heatsink | Bigman | Chip Amps | 8 | 13th December 2007 02:00 PM |
| mounting of outputs to heatsink | bigpanda | Solid State | 10 | 27th April 2006 10:44 AM |
| Help - Mounting transistor to heatsink | vsr123 | Pass Labs | 10 | 17th April 2003 11:43 AM |
| Heatsink mounting. | JoeBob | Solid State | 3 | 21st January 2002 02:51 AM |
| New To Site? | Need Help? |
