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Class D Switching Power Amplifiers and Power D/A conversion

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Old 10th July 2012, 07:35 PM   #2081
exflaco is offline exflaco  Armenia
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Stewin the protection work fine short circuit, and low imp ,tested
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Old 10th July 2012, 07:40 PM   #2082
exflaco is offline exflaco  Armenia
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Aucosticraft the 3200 is for sub low d'ont work fine at complete range ,a good PA class D lows , class H mids , And class ab higs
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Old 12th July 2012, 01:39 PM   #2083
exflaco is offline exflaco  Armenia
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Sameer you pcb a litle mistaque the-v rail is floating must be conect the zener positive to grnd ,coul share speaker delay and dc protect schematics'? tanks
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Old 12th July 2012, 02:01 PM   #2084
CPX is offline CPX  Romania
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Quote:
Originally Posted by Aucosticraft View Post
Has anyone seen the performance of this amp with 20Khz input signals ?

its giving me problem when I Use 20Khz as input or mix 20Khz with 1Khz signal. the circuit stops oscillating.
You have bad layout..post it so i can give you some advice.
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Old 12th July 2012, 02:10 PM   #2085
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"Un site d'audiophile" enceinte en béton - amplificateur mosfet ...
hi Exflaco
greetings this is the site for dc protect schematic posted by sameerx1 use BC547 BC557 for bc560 550
warm regards
andrew lebon
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Old 12th July 2012, 03:49 PM   #2086
exflaco is offline exflaco  Armenia
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Thanks a lot andrew lebon ,diyaudio the best diyers choice
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Old 12th July 2012, 11:24 PM   #2087
stewin is offline stewin  Kenya
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Originally Posted by exflaco View Post
Stewin the protection work fine short circuit, and low imp ,tested
thanks exflaco. pls post schema
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Old 13th July 2012, 03:08 AM   #2088
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Originally Posted by CPX View Post
You have bad layout..post it so i can give you some advice.
Thanks CPX, but the problem was when I simulated.but When today I re simulated it, it worked perfectly fine. ( I do not have oscilloscope.)also the physical amp sounds good.I am loving it.
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Old 13th July 2012, 03:53 AM   #2089
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About selection of Strands.

I was wondering about , what should be considered while deciding the number of strands for coil (for the skin effect). should we consider PWM frequency or the audio frequency range?
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Old 13th July 2012, 10:21 AM   #2090
exflaco is offline exflaco  Armenia
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Stewin tell my schem you interesting
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