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Class D Switching Power Amplifiers and Power D/A conversion

ucd 25 watts to 1200 watts using 2 mosfets
ucd 25 watts to 1200 watts using 2 mosfets
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Old 27th July 2010, 04:56 PM   #221
lycanlk is offline lycanlk  Sri Lanka
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Default here is the copper paths

But I recommend you to follow the original by the author..

Anyway my design works well except the noise at high frequency. I open this to build and test by yourself.

regards,
Lycanlk
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File Type: pdf EJTAGLE UCD.pdf (62.6 KB, 1642 views)
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Old 27th July 2010, 05:39 PM   #222
lycanlk is offline lycanlk  Sri Lanka
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Default A very small change.. this can be ignored..

found a better place for 100p at FET

regards,
Lycanlk
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File Type: pdf EJTAGLE-UCD.pdf (148.8 KB, 1902 views)
File Type: pdf EJTAGLE-UCD-COMP.pdf (183.2 KB, 1924 views)
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Old 27th July 2010, 08:09 PM   #223
stewin is offline stewin  Kenya
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high guys i've sought of reduced the noise in my amp by adding 1nf between pin 2 and 3 of lm 311 and i want to try using the below scheme for the input of lm311pls advice also i've managed to bridge the amp ( very power full) i used just the ir2110 pins lin & hin but i've not included the feed back on the other channel but works fine, voltage 56v -0- 56v irf540 warms a little. any ideas i would appreciate . steve
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File Type: pdf 1200W.pdf (78.7 KB, 1901 views)
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Old 27th July 2010, 10:02 PM   #224
stewin is offline stewin  Kenya
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just removed the 1nf between pin 2 & 3 of lm311 and placed 4.7nf capacitor at pin 3 of lm311 and connected to the ground ovlts and added a 5.6k resistor before the input . and the noise is small hard to notice stewin
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Old 27th July 2010, 11:41 PM   #225
andrewlebon is offline andrewlebon  India
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hi lycanik
greetings thanks for the design
thanking you
andrew
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Old 28th July 2010, 01:04 AM   #226
ionutzxpo is offline ionutzxpo  Romania
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hello Lycanlk can you tell us the size off the PCB? thanks
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Old 28th July 2010, 01:25 AM   #227
andrewlebon is offline andrewlebon  India
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hi stewin
greetings after bridging how does is it sound how many watts do you
think its why are you not using irfp250 the schematic you posted is it diy or
from some proffessional amp seems to complicated
thanking you
andrew lebon
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File Type: pdf 1200W_2.pdf (78.1 KB, 1366 views)
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Old 28th July 2010, 05:33 AM   #228
lycanlk is offline lycanlk  Sri Lanka
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Default 88.2mm x 73.9mm

Quote:
Originally Posted by ionutzxpo View Post
hello Lycanlk can you tell us the size off the PCB? thanks
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File Type: pdf EJTAGLE-UCD sizes.pdf (93.9 KB, 1603 views)
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Old 28th July 2010, 07:39 AM   #229
stewin is offline stewin  Kenya
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Quote:
Originally Posted by andrewlebon View Post
hi stewin
greetings after bridging how does is it sound how many watts do you
think its why are you not using irfp250 the schematic you posted is it diy or
from some proffessional amp seems to complicated
thanking you
andrew lebon
hi andrew lebon the scheme was posted by nikula and on pg 6 of the below forum he has a completed and mounted it .

http://www.diyaudio.com/forums/class...fier-zero.html
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Old 29th July 2010, 03:50 PM   #230
opor is offline opor  Thailand
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Hi all,

Need for your recommend . I would like to add more output device for 2 ohm load. So is this schematic work?
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File Type: pdf UcDbasedV2.pdf (27.4 KB, 1475 views)
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