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Class D Switching Power Amplifiers and Power D/A conversion

6000W By IRS2092
6000W By IRS2092
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Old 19th November 2012, 06:55 PM   #371
Hadighorbani is offline Hadighorbani  Iran
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what about exit core ?
T106-2 ?
how much powere can handel T106-2 ?

Last edited by Hadighorbani; 19th November 2012 at 07:02 PM.
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Old 20th December 2012, 07:49 AM   #372
dairen is offline dairen
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The mosfet driver totem pole BJTs are rated 80V so the
supply must be below +/- 80V.
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Old 31st December 2012, 05:08 PM   #373
aman khalsa is offline aman khalsa  India
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happy new year to all diyers.....
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Old 31st December 2012, 08:00 PM   #374
stewin is offline stewin  Kenya
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happy new year diy audio world
and a happy and a prosperous new year
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Old 3rd March 2013, 06:20 AM   #375
sayam4444 is offline sayam4444
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Default this is pcb layout

Quote:
Originally Posted by DJ_DUMY View Post
hi
I designed a PCB for this amplifier but I replace transistors with two driver circuits if you have something better please send to me at gabriel_seku@yahoo.com
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Old 28th March 2013, 06:20 PM   #376
vdij is offline vdij  Moldova
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IRS2092+UCC37322+IRFP4227, U+-65V, R-4 Om.
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Old 29th March 2013, 05:26 AM   #377
student_sound is offline student_sound
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Default Hi vdij !

Hi friend !
can i ask you some things ?
i m new in class d, i built irs2092 amps 7d, with no input signal , but the output have some hi frequency noise like post #7
http://www.diyaudio.com/forums/class...ease-help.html

Can i ask you what's wrong with it ?

Regards !
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Old 29th March 2013, 06:46 AM   #378
Baldin is offline Baldin  Denmark
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Quote:
Originally Posted by vdij View Post
IRS2092+UCC37322+IRFP4227, U+-65V, R-4 Om.
Looks good
Any information on your SMPS?
Baldin
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Old 29th March 2013, 07:04 AM   #379
Baldin is offline Baldin  Denmark
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Quote:
Originally Posted by student_sound View Post
Hi friend !
can i ask you some things ?
i m new in class d, i built irs2092 amps 7d, with no input signal , but the output have some hi frequency noise like post #7
http://www.diyaudio.com/forums/class...ease-help.html

Can i ask you what's wrong with it ?

Regards !
What you are probably experiencing is interfeerence from one chenel to the other (called beating), either EMI or through supply. If only on e chenel is connected, do you then hear whistling? If you use a SMPS the problem can also araise between amp and SMPS.
Problem araises from the switching noise generated by the switching components, and especially if you have say two chenels where the main switching freq in two chenels are different by less than 20 kHz.
Proper layout, shielding etc. helps a lot. but try lowering the switch freq of one chanel, or try insert some chokes on the different wires (keep these short ... they are like antennas).
Baldin
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Old 29th March 2013, 09:52 AM   #380
student_sound is offline student_sound
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Default hi Baldin !

hi Baldin !
Thanks for your replay ! i use classic xfmr power supply, and if i test channel one and channel two shutdown, the result is the same, i dont know why ?
please help me !

Regard !
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