In Reply to: Re: That's what I was thinking.... posted by mfc on May 9, 2003 at 02:37:41:
Nice work! Just bear in mind that multiplication due to feedback cannot occur unless there is finite open-loop distortion present within the device or circuit. As Baxandall demonstrates in his Dec '78 WW article, feedback acts to recirculate the inherent harmonic products present within the open-loop amplifier. Each circulation intermodulates with the inherent products to produce higher-order products.We know, however, that a linear device produces zero harmonic distortion products (this by definition); a linear device therefore contains no inherent products to modulate; thus feedback around a linear device produces no multiplication. In short, feedback is not the root problem--the root problem is device nonlinearity.
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Follow Ups
- Harmonic Multiplication in Linear Devices - Scott Frankland 05/9/0309:02:22 05/9/03 (32)
- Re: Harmonic Multiplication in Linear Devices - mfc 10:48:34 05/9/03 (31)
- Re: Harmonic Multiplication in Linear Devices - Scott Frankland 11:51:44 05/9/03 (30)
- Hiraga on Feedback - mfc 17:10:13 05/10/03 (25)
- Re: Hiraga on Feedback - Scott Frankland 19:19:25 05/10/03 (24)
- Re: Hiraga on Feedback - mfc 20:36:31 05/10/03 (23)
- Re: Hiraga on Feedback - Scott Frankland 16:45:27 05/12/03 (18)
- Re: Hiraga on Feedback - mfc 21:45:10 05/12/03 (0)
- Re: Hiraga on Feedback - mfc 21:30:27 05/12/03 (0)
- Re: Hiraga on Feedback - mfc 21:21:54 05/12/03 (15)
- Re: Hiraga on Feedback - Scott Frankland 00:06:36 05/13/03 (14)
- Re: Hiraga on Feedback - Scott Frankland 12:44:56 05/13/03 (13)
- Re: Hiraga on Feedback - mfc 19:44:34 05/13/03 (12)
- Re: Hiraga on Feedback - Scott Frankland 14:47:53 05/14/03 (11)
- Re: Hiraga on Feedback - mfc 21:18:56 05/14/03 (4)
- Re: Hiraga on Feedback - john curl 15:29:05 05/15/03 (1)
- Re: Hiraga on Feedback - mfc 20:54:08 05/15/03 (0)
- Re: Hiraga on Feedback - Scott Frankland 10:52:17 05/15/03 (1)
- Re: Hiraga on Feedback - john curl 15:47:43 05/15/03 (0)
- Re: Hiraga on Feedback - john curl 16:07:29 05/14/03 (5)
- Re: Hiraga on Feedback - mfc 19:53:56 05/14/03 (0)
- Re: Hiraga on Feedback - Scott Frankland 19:10:13 05/14/03 (3)
- Re: Hiraga on Feedback - john curl 12:09:17 05/15/03 (2)
- Re: Hiraga on Feedback - Scott Frankland 12:55:58 05/15/03 (1)
- Re: Hiraga on Feedback - john curl 15:25:27 05/15/03 (0)
- Re: Hiraga on Feedback - john curl 21:29:35 05/10/03 (2)
- Re: Hiraga on Feedback - mfc 14:27:02 05/11/03 (0)
- Re: Hiraga on Feedback - mfc 10:34:55 05/11/03 (0)
- Re: Hiraga on Feedback - Scott Frankland 20:59:23 05/10/03 (0)
- Re: Harmonic Multiplication in Linear Devices - john curl 15:57:17 05/9/03 (3)
- From Pianos to Amps - mfc 19:59:42 05/9/03 (2)
- Re: From Pianos to Amps - john curl 22:20:47 05/9/03 (1)
- Re: From Pianos to Amps - mfc 21:02:30 05/12/03 (0)