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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: Not quite.. posted by Steve Eddy on January 13, 2004 at 17:14:12:
You said:The correction signal isn't going to make it back to the input of the amp any sooner. The amp's not going to delay it any more.
I don't understand this. All amplifiers have a forward transfer time delay. If they didn't, there would be no need for feedback compensation. By definition the signal arrives at the input of the amp earlier than the correction signal arrives at the output.
It is not possible for the amplifier to exhibit the closed loop output impedance in response to a new input until after the forward path has been traversed.
Otherwise you have a non-causal system.
Peter
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Follow Ups
- Ah, Steve..... - Commuteman 17:20:21 01/13/04 (12)
- Re: Ah, Steve..... - Steve Eddy 18:21:32 01/13/04 (11)
- I don't think so. - Commuteman 12:06:55 01/14/04 (10)
- Re: I don't think so. - Steve Eddy 13:11:12 01/14/04 (9)
- I still don't think so.... - Commuteman 13:30:44 01/14/04 (8)
- Re: I still don't think so.... - Steve Eddy 13:53:01 01/14/04 (7)
- Try explaining what happens - Commuteman 14:21:07 01/14/04 (6)
- Re: Try explaining what happens - john curl 15:06:32 01/14/04 (0)
- Re: Try explaining what happens - Steve Eddy 14:54:24 01/14/04 (4)
- OK, so we can stop now - Commuteman 15:18:19 01/14/04 (3)
- Re: OK, so we can stop now - Steve Eddy 18:48:13 01/14/04 (2)
- Find something else to argue about... ;-) nt - Commuteman 12:32:10 01/15/04 (1)
- NO! :) nt - Steve Eddy 16:08:45 01/15/04 (0)
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