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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: I fixed a bias problem in my Mosfet follower (experiment #1 continued) posted by john curl on July 1, 2003 at 15:59:38:
Hello,> First, it has a very low intrinsic output impedance.
Yes, relative to an 8 ohm speaker load, an emitter follower
built with some beefy transistors could make 8 ohms seem like
a light load. That means it doesn't have to "put out" all that
much. Seeing that light loading causes harmonics to go way down
in an emitter follower, I can see that this would give an emitter
follower a chance to perform well.What bugs me though is this inherent problem that the load is
part of the feedback loop. I'm kind of wondering into uncharted
territory when I start thinking about frequencies where feedback
isn't exactly 180 degrees and the effect this has. Any thoughts
or references along these lines would be welcome. One general
question is: What effect does feedback have when it isn't
exactly 180 degrees?Mike
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Follow Ups
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - mfc 07/1/0318:58:45 07/1/03 (9)
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - kurt s 22:02:39 07/1/03 (8)
- PS - kurt s 22:29:04 07/1/03 (0)
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - mfc 22:25:41 07/1/03 (6)
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - Scott Frankland 01:43:17 07/2/03 (4)
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - mfc 18:34:52 07/2/03 (3)
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - Scott Frankland 19:41:37 07/2/03 (2)
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - mfc 22:15:08 07/2/03 (1)
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - Scott Frankland 23:42:07 07/2/03 (0)
- Re: I fixed a bias problem in my Mosfet follower (experiment #1 continued) - kurt s 22:33:03 07/1/03 (0)
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