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Class D Switching Power Amplifiers and Power D/A conversion

What about the performance of the IRAUDAMP7S?
What about the performance of the IRAUDAMP7S?
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Old 19th May 2011, 07:04 AM   #1
planar8514 is offline planar8514  China
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Default What about the performance of the IRAUDAMP7S?

Hi:
I found a ref design from IR with their IRS2902 and IRF4019, which can give a maximum of 500W output. I think it is enough to drive my ATC SCM19. Is there anyone who has experience using this chip? What about the performance? Thank you!?
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Old 19th May 2011, 07:57 AM   #2
col is offline col  Australia
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I don't own one of these amps yet but have been following discussions, this thread has some interesting info:

http://www.diyaudio.com/forums/class...-irfi4019.html

there are a couple of ready made modules available. One from Connexelectronic and one from Zoe_tsang on Ebay.

Iv'e heard they are very quite, would be interesting to get some more reports though.

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Old 19th May 2011, 05:18 PM   #3
nigelwright7557 is online now nigelwright7557  United Kingdom
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I designed my own2092 + 4227 500 watt amplifier.
I was very pleased with the sound.
I did have a couple of minor problems.
1/ Got a loud pop through speaker on power down (some modules did and others didnt despite having same components.)
2/ Got the 2092 resetting if driven hard into clipping. Not strictly a problem as it was pumping out more than 500 watts in hard clipping.
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Old 20th May 2011, 01:04 AM   #4
planar8514 is offline planar8514  China
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What about your circuit? Any difference from the reference design? Thank you!


Quote:
Originally Posted by nigelwright7557 View Post
I designed my own2092 + 4227 500 watt amplifier.
I was very pleased with the sound.
I did have a couple of minor problems.
1/ Got a loud pop through speaker on power down (some modules did and others didnt despite having same components.)
2/ Got the 2092 resetting if driven hard into clipping. Not strictly a problem as it was pumping out more than 500 watts in hard clipping.
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Old 21st May 2011, 08:32 PM   #5
nigelwright7557 is online now nigelwright7557  United Kingdom
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I used the datasheet circuit.
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