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Old 17th April 2012, 01:41 PM   #81
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Here is the missing schematic from the thread:
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Old 17th April 2012, 02:28 PM   #82
AndrewT is offline AndrewT  Scotland
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That looks just like an example of Jung's composite opamps type amplifier.
A voltage gain opamp driving a current gain opamp (here a FET source follower).
Is that a correct interpretation?
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Old 17th April 2012, 02:40 PM   #83
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That's pretty much correct.
Any op amp followed by a buffer could be traced back to Jung.
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Old 17th April 2012, 06:57 PM   #84
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Quote:
Originally Posted by Avro Arrow View Post
Any op amp followed by a buffer could be traced back to Jung.
Interesting. I know what I'm working on is nothing novel; after browsing the forum and several others, it looks like a buffer wrapped inside the NFB loop of an opamp accounts for two out of every three designs. Figured I'd do my part and make my own version.

~ Brad.
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Old 17th April 2012, 07:22 PM   #85
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There are plenty of options for new versions.
If you include discreet op amps followed by a buffer you
could probably push the number up to 80% or more...
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