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Class D Switching Power Amplifiers and Power D/A conversion

2,5v dc offset!!
2,5v dc offset!!
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Old 4th March 2007, 10:18 PM   #1
nicoch58 is offline nicoch58  Europe
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Join Date: Oct 2004
Default 2,5v dc offset!!

just finish the amp11 but in the two cannels I have the same dc offset ,whith trimmer I can conpensate a little 1,930.
visual inspection all perfect ,no bridge, component value ,solder joint.....suggestions ??

my amp3 have 70mv ,the normal max is 100mv ,2,5v is too big....i hope is not the tripath chip,rework is hard....the strange is in all two cannel!!!!

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Old 4th March 2007, 10:53 PM   #2
BWRX is offline BWRX  United States
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Which chips does the amp11 use? You may want to try posting this on the 41hz forums as well. You will probably get more specific answers there.
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Old 5th March 2007, 12:02 AM   #3
nicoch58 is offline nicoch58  Europe
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HI Brian, TK2050 like AMP4 dual mono version
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