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Class D Switching Power Amplifiers and Power D/A conversion

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Old 28th September 2013, 09:43 AM   #71
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Hi kanon please post a layout with buffer (totem pole or TC42XX series) to drive more output's,and if you had an idea of feedback on this design please include it on your layout,hope to hear more from you.(buenas dias).
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Old 28th September 2013, 03:52 PM   #72
Acca is offline Acca  Serbia
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Feed back can be make same as classic amp. (for example tda7294)
On SG IC you have op-amp.Try to wire it in inverting or noninverting op amp.Speaker + pole can be used for feedback,instead internal output of op-amp.Simple
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Old 28th September 2013, 10:08 PM   #73
kanon is offline kanon  Mexico
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Default Totem pole + IR2110

I'll try in the next week.
No feedback signal.!
will wait and not have much emi.
Not much going to do bummmm.
I love when they explode the mosfets.
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Old 29th September 2013, 09:28 AM   #74
Acca is offline Acca  Serbia
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Oh 90N20,90A 200V
This can be music welding inverter
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Old 29th September 2013, 04:14 PM   #75
kanon is offline kanon  Mexico
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Quote:
Originally Posted by Acca View Post
Oh 90N20,90A 200V
This can be music welding inverter


those are the only mosfet, I have
and pure igbt
if it works maybe buy irb4227

the kicker amp uses 6 of these in single subwoofer IXGQ90N33TCD1 and are very power.
that's why I like this design in order to vary the freq. for use with these IGBTs.
and are not amp. welding if not for ears popping
thanks.
: Wave2s:: Wave2s:: Wave2s:: Wave2s:

Last edited by kanon; 29th September 2013 at 04:24 PM.
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Old 29th September 2013, 05:47 PM   #76
Cresnet is offline Cresnet  Germany
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Any oscilloscope waves of frequency response?
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Old 29th September 2013, 06:51 PM   #77
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hi kanon please post a design with feedback,cause the original schematic will produce dc at higher output,thank's
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Old 29th September 2013, 07:35 PM   #78
Acca is offline Acca  Serbia
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Quote:
Originally Posted by kanon View Post
those are the only mosfet, I have
and pure igbt
if it works maybe buy irb4227

the kicker amp uses 6 of these in single subwoofer IXGQ90N33TCD1 and are very power.
that's why I like this design in order to vary the freq. for use with these IGBTs.
and are not amp. welding if not for ears popping
thanks.
: Wave2s:: Wave2s:: Wave2s:: Wave2s:
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Old 29th September 2013, 07:36 PM   #79
Acca is offline Acca  Serbia
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Quote:
Originally Posted by don2007ksa View Post
hi kanon please post a design with feedback,cause the original schematic will produce dc at higher output,thank's
???
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Old 21st November 2013, 05:58 PM   #80
PetruV is offline PetruV  Romania
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I have almost finished this,only need ir2184 and toroid inductor.i couldnt find them
Is there anything wrong with using 3.3k for dc offset pot and uf4007 instead of 1n5819??
mosfets are irfp250n
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