|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Class D Switching Power Amplifiers and Power D/A conversion |
  |
|
|
|
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 |
13th January 2013, 01:22 PM
|
#43 |
|
diyAudio Member
Join Date: Jan 2005
|
The monster has awoken yet again: http://i.imgur.com/heCHd.jpg
I neatened it up alittle to, its now a inverting setup with feedback from the output.
__________________
The point of life is to build atleast one audio amplifier before you die. 
|
|
|
13th January 2013, 04:36 PM
|
#44 |
|
diyAudio Member
Join Date: Jan 2005
|
And now its happened, the amp was powered up with 2x85VDC from a 1.5kVA transformer, the load was two 4ohm speakers in series for 8 ohms.
A video of the test, yes i was very nervous, this is by far the highest power amplifier i have ever powered up: Big Class D Amplifier - YouTube I was literally shaking after the test.
__________________
The point of life is to build atleast one audio amplifier before you die.
|
|
|
|
13th January 2013, 09:40 PM
|
#45 |
|
diyAudio Member
Join Date: Jun 2005
Location: Cape Town
|
Off the point, the song in your video is by Chakra, one of my favourite trance tracks.
Chakra - Home (Original) - YouTube
__________________
Theres nothing worse than the smell of burned output transistors!! |
|
|
|
14th January 2013, 05:22 PM
|
#46 |
|
diyAudio Member
Join Date: Jan 2005
|
The song in the video was from the "Trance 2000 2nd edition" CD.
I also did a quick power test, into a 2 ohm load, the amp peaked 1800 watts (60V peak into 2 ohms) with the 30 ohm softstart resistor still in series with the transformer primary, it was nice and hot after a few minutes while the amp heatsink was stone cold.
__________________
The point of life is to build atleast one audio amplifier before you die.
|
|
|
|
14th January 2013, 06:40 PM
|
#47 | |
|
diyAudio Member
Join Date: May 2008
Location: Front Row Center
|
Quote:
 Love the way you did the test Tekko, almost impossible for anyone to see the amplifier parts with that mix, i do believe you were nervous .... Good one , thats a lot of power ....
__________________
A man should look for what is, and not for what he thinks should be. -Albert Einstein |
|
|
|
|
20th January 2013, 07:50 AM
|
#49 |
|
diyAudio Member
Join Date: Jan 2005
|
__________________
The point of life is to build atleast one audio amplifier before you die.
|
|
|
|
20th January 2013, 04:43 PM
|
#50 |
|
diyAudio Member
Join Date: Dec 2003
Location: Munich
|
...I always thought my workbench would look messy, but your pictures&videos make me feel like a correct german...
 Enjoy your beast! The power is strong with this one. Let's hope hope that it doesn't turn dark. |
|
|
|
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Tekko dreams up another poweramp | Tekko | Solid State | 6 | 11th June 2012 06:04 PM |
| Tekko scored some transistors! | Tekko | Solid State | 3 | 2nd September 2011 06:37 PM |
| Tekko goes complementary bjt | Tekko | Solid State | 3 | 11th December 2010 03:48 PM |
| Tekko plans UcD | Tekko | Class D | 13 | 9th November 2010 03:25 AM |
| Another classd from Tekko Audio Labs | Tekko | Class D | 49 | 3rd December 2007 06:51 PM |
| New To Site? | Need Help? |
